Mitsubishi Pencil Kabushiki Kaisha
Patent Applications and Registrations
Patent applications and USPTO patent grants for Mitsubishi Pencil Kabushiki Kaisha.The latest application filed is for "writing instrument".
Company Profile
0.95.23
- Mitsubishi Pencil Kabushiki Kaisha - Shinagawa-Ku Tokyo JP
- Mitsubishi Pencil Kabushiki Kaisha - Tokyo JP
- Mitsubishi Pencil Kabushiki Kaisha - 23-37, Higashi Ohi 5-chome Shinagawa-ku, Tokyo JP
- Mitsubishi Pencil Kabushiki Kaisha - 23-27, Higashi Ohi 5-chome Shinagawa-ku JP
- Mitsubishi Pencil Kabushiki Kaisha - Toyko JP
- Mitsubishi Pencil Kabushiki Kaisha - JP JP
- Mitsubishi Pencil Kabushiki Kaisha -
Patent Activity
| Patent | Date |
|---|---|
| Writing instrument Grant 8,684,617 - Koyama April 1, 2 | 2014-04-01 |
| Writing Instrument App 20100074672 - Koyama; Takao | 2010-03-25 |
| Direct methanol fuel cell Grant 7,625,656 - Suda , et al. December 1, 2 | 2009-12-01 |
| Direct Methanol Fuel Cell App 20090233140 - SUDA; Yoshihisa ; et al. | 2009-09-17 |
| Direct methanol fuel cell Grant 7,556,877 - Suda , et al. July 7, 2 | 2009-07-07 |
| Gas pressurized writing instrument and writing instrument refill Grant 7,381,004 - Furukawa , et al. June 3, 2 | 2008-06-03 |
| Water-based ink composition for ball-point pen Grant 7,345,100 - Iwamoto , et al. March 18, 2 | 2008-03-18 |
| Gas-pressurized writing instrument and writing instrument refill Grant 7,325,992 - Furukawa , et al. February 5, 2 | 2008-02-05 |
| Follower for non-aqueous ball point pen and non-aqueous ball point pen Grant 7,311,459 - Ikai , et al. December 25, 2 | 2007-12-25 |
| Writing instrument and welding method of writing point assembly and writing instrument parts connecting structure and connecting method Grant 7,303,351 - Furukawa , et al. December 4, 2 | 2007-12-04 |
| Water-based ink composition for ballpoint pen Grant 7,279,512 - Iwamoto , et al. October 9, 2 | 2007-10-09 |
| Production processes for writing instrument and ink occlusion body Grant 7,223,037 - Furukawa , et al. May 29, 2 | 2007-05-29 |
| Ink follower for water-based ink ballpoint pen Grant 7,179,005 - Miyamoto , et al. February 20, 2 | 2007-02-20 |
| Follower for non-aqueous ball point pen and non-aqueous ball point pen App 20070020031 - Ikai; Takayuki ; et al. | 2007-01-25 |
| Ink-storing body for writing utensil Grant 7,063,475 - Kirita , et al. June 20, 2 | 2006-06-20 |
| Cartridge type applicator Grant 7,044,673 - Endou May 16, 2 | 2006-05-16 |
| Writing utensil having excellent cap-off performance Grant 7,001,094 - Ami , et al. February 21, 2 | 2006-02-21 |
| Ink composition for pressurized ball-point pen and pressurized ball-point pen App 20060013641 - Morita; Masaaki ; et al. | 2006-01-19 |
| Writing instrument cap Grant 6,974,272 - Furukawa , et al. December 13, 2 | 2005-12-13 |
| Safety indwelling needle Grant 6,969,376 - Takagi , et al. November 29, 2 | 2005-11-29 |
| Writing instrument, writing instrument cap and method of assembly of a writing instrument cap Grant 6,966,718 - Furukawa , et al. November 22, 2 | 2005-11-22 |
| Writing utensil App 20050232685 - Koyama, Takao | 2005-10-20 |
| Marking pen with excellent cap-off performance Grant 6,955,491 - Osada , et al. October 18, 2 | 2005-10-18 |
| Ink composition for water-based ball pen Grant 6,953,502 - Ikoma October 11, 2 | 2005-10-11 |
| Cumulative hair-dyeing temporary hair dyes and process for producing the same Grant 6,905,521 - Tsuchiya June 14, 2 | 2005-06-14 |
| Gas-pressurization type writing utensil and writing utensil refill App 20050079001 - Furukawa, Kazuhiko ; et al. | 2005-04-14 |
| Ink follow-up material for water-base ball pen App 20050074273 - Miyamoto, Masaru ; et al. | 2005-04-07 |
| Liquid applicator Grant 6,857,807 - Akaishi February 22, 2 | 2005-02-22 |
| Ink for oil-based ball pen Grant 6,786,958 - Morita , et al. September 7, 2 | 2004-09-07 |
| Water-based ink composition for writing utensil Grant 6,776,829 - Miyamoto , et al. August 17, 2 | 2004-08-17 |
| Water-based ballpoint ink composition Grant 6,770,688 - Miyamoto August 3, 2 | 2004-08-03 |
| Collector type writing implement Grant 6,769,827 - Furukawa , et al. August 3, 2 | 2004-08-03 |
| Writing utensil Grant 6,761,496 - Osada , et al. July 13, 2 | 2004-07-13 |
| Direct methanol fuel cell App 20040126646 - Suda, Yoshihisa ; et al. | 2004-07-01 |
| Process for producing sintered color pencil lead Grant 6,746,524 - Kitazawa June 8, 2 | 2004-06-08 |
| Solid adhesive composition Grant 6,734,233 - Yazawa , et al. May 11, 2 | 2004-05-11 |
| Baked color pencil lead and process for producing the same Grant 6,709,501 - Satoh March 23, 2 | 2004-03-23 |
| Writing implement Grant 6,702,498 - Konose March 9, 2 | 2004-03-09 |
| Indwelling needle with an inner needle retraction mechanism Grant 6,676,638 - Takagi , et al. January 13, 2 | 2004-01-13 |
| Cartridge type applicator App 20040005185 - Endo, Mitsuru | 2004-01-08 |
| Writing implement Grant 6,659,672 - Kirita December 9, 2 | 2003-12-09 |
| Ink composition for water based ballpoint pen Grant 6,645,284 - Ikoma November 11, 2 | 2003-11-11 |
| Baked colored pencil lead and process for producing the same Grant 6,645,279 - Kitazawa , et al. November 11, 2 | 2003-11-11 |
| Liquid container App 20030196672 - Kirita, Kazuhisa ; et al. | 2003-10-23 |
| Collector type writing implement Grant 6,619,870 - Furukawa , et al. September 16, 2 | 2003-09-16 |
| Collector type writing instrument Grant 6,619,871 - Furukawa , et al. September 16, 2 | 2003-09-16 |
| Safety indwelling needle Grant 6,616,631 - Takagi , et al. September 9, 2 | 2003-09-09 |
| Pseudo-plastic water based ink for ballpoint pen Grant 6,613,135 - Miyamoto , et al. September 2, 2 | 2003-09-02 |
| Water based ink composition for writing instrument Grant 6,605,143 - Takeuchi , et al. August 12, 2 | 2003-08-12 |
| Collector type writing instrument Grant 6,602,012 - Furukawa , et al. August 5, 2 | 2003-08-05 |
| Water-based ink composition for writing instrument Grant 6,599,352 - Miyamoto , et al. July 29, 2 | 2003-07-29 |
| Liquid makeup cosmetic Grant 6,506,376 - Sato January 14, 2 | 2003-01-14 |
| Water based ink composition for writing instrument Grant 6,491,747 - Miyamoto , et al. December 10, 2 | 2002-12-10 |
| Water based white color tone pigment ink for ball point pen Grant 6,492,435 - Miyamoto , et al. December 10, 2 | 2002-12-10 |
| Liquid cosmetic Grant 6,488,945 - Sato December 3, 2 | 2002-12-03 |
| Capless writing instrument Grant 6,478,495 - Ami , et al. November 12, 2 | 2002-11-12 |
| Writing instrument having excellent cap-off performance Grant 6,474,893 - Osada , et al. November 5, 2 | 2002-11-05 |
| Water based ink composition for ball point pen Grant 6,451,099 - Miyamoto , et al. September 17, 2 | 2002-09-17 |
| Click type writing implement Grant 6,435,751 - Ono , et al. August 20, 2 | 2002-08-20 |
| Double ended direct-feed type writing implement Grant 6,435,747 - Furukawa , et al. August 20, 2 | 2002-08-20 |
| Liquid applicator having ink color identification Grant 6,428,235 - Takanashi , et al. August 6, 2 | 2002-08-06 |
| Aqueous Gel Ink-filled Ball Point Pen App 20020071709 - Miyamoto, Masaru | 2002-06-13 |
| Liquid cosmetic App 20020051756 - Sato, Hiroshi | 2002-05-02 |
| Ink storage tube for ball-point pens Grant 6,354,756 - Morita March 12, 2 | 2002-03-12 |
| Water based ink composition for writing instrument App 20020011180 - Miyamoto, Masaru ; et al. | 2002-01-31 |
| Water based ink composition for writing instrument App 20020007763 - Miyamoto, Masaru ; et al. | 2002-01-24 |
| Water based ink composition for writing instrument App 20020007764 - Takeuchi, Yoji ; et al. | 2002-01-24 |
| Writing implement with an ink collector Grant 6,340,262 - Komiya , et al. January 22, 2 | 2002-01-22 |
| Puncturing device Grant 6,325,781 - Takagi , et al. December 4, 2 | 2001-12-04 |
| Ink composition for water based ballpoint pen App 20010032567 - Ikoma, Hideyuki | 2001-10-25 |
| Water based ink composition for writing instrument App 20010017096 - Miyamoto, Masaru ; et al. | 2001-08-30 |
| Indwelling needle with an inner needle retraction mechanism App 20010016713 - Takagi, Hiroshi ; et al. | 2001-08-23 |
| Writing instrument App 20010016142 - Koyama, Takao | 2001-08-23 |
| Liquid applicator Grant 6,276,860 - Nakajima , et al. August 21, 2 | 2001-08-21 |
| Process For Producing Self-inking Stamp And Self-inking Stamp App 20010013293 - HIRANO, KOICHI | 2001-08-16 |
| Double ended direct-feed type writing implement App 20010012468 - Furukawa, Kazuhiko ; et al. | 2001-08-09 |
| Ball point pen Grant 6,261,019 - Furukawa July 17, 2 | 2001-07-17 |
| Direct-feed type writing implement App 20010004429 - Mito, Yosuke ; et al. | 2001-06-21 |
| Direct-feed type writing implement App 20010004430 - Mito, Yosuke ; et al. | 2001-06-21 |
| Stick cosmetic container Grant 6,244,769 - Nakajima , et al. June 12, 2 | 2001-06-12 |
| Ink cartridge Grant 6,234,619 - Kiritake May 22, 2 | 2001-05-22 |
| Multiplex writing implement Grant 6,217,241 - Kobayashi April 17, 2 | 2001-04-17 |
| Fluid substance dispenser Grant 6,176,396 - Hamada , et al. January 23, 2 | 2001-01-23 |
| Liquid coating device Grant 6,155,735 - Nakajima December 5, 2 | 2000-12-05 |
| Water-base ink having metallic lustrous color for ballpoint pen Grant 6,120,590 - Miyamoto , et al. September 19, 2 | 2000-09-19 |
| Ball-point pen Grant 6,082,920 - Furukawa July 4, 2 | 2000-07-04 |
| Ink composition for writing instrument Grant 6,048,914 - Goto , et al. April 11, 2 | 2000-04-11 |
| Ink replenishing apparatus and ink replenishing method for ink-jet printing ink cartridge Grant 6,048,054 - Ando , et al. April 11, 2 | 2000-04-11 |
| Aqueous gel ink-filled ball point pen Grant 5,993,098 - Osada November 30, 1 | 1999-11-30 |
| Pseudo-plastic aqueous ink for ball point pen Grant 5,990,201 - Miyazaki , et al. November 23, 1 | 1999-11-23 |
| Oil base ink composition Grant 5,980,624 - Ichikawa November 9, 1 | 1999-11-09 |
| Ball point pen filled with erasable ink Grant 5,977,211 - Koyama November 2, 1 | 1999-11-02 |
| Replenishing ink cartridge Grant 5,971,532 - Toda October 26, 1 | 1999-10-26 |
| Water base ink composition Grant 5,965,634 - Idogawa , et al. October 12, 1 | 1999-10-12 |
| Applicator Grant 5,957,609 - Morita , et al. September 28, 1 | 1999-09-28 |
| Ink for ball point pen Grant 5,942,027 - Ikai , et al. August 24, 1 | 1999-08-24 |
| Cap for writing instrument Grant 5,941,650 - Fukai , et al. August 24, 1 | 1999-08-24 |
| Clicking-type ball point pen Grant 5,915,866 - Furukawa June 29, 1 | 1999-06-29 |
| Multiplex writing implement Grant 5,899,618 - Kobayashi , et al. May 4, 1 | 1999-05-04 |
| Clicking-type writing implement Grant 5,871,296 - Furukawa , et al. February 16, 1 | 1999-02-16 |
| Non-aqueous ink for ball point pen and ball point pen Grant 5,868,511 - Osada February 9, 1 | 1999-02-09 |
| Writing implement ink conducting core Grant 5,829,904 - Matsumoto , et al. November 3, 1 | 1998-11-03 |
| Liquid applicator Grant 5,827,002 - Nakajima October 27, 1 | 1998-10-27 |
| Applicator Grant 5,803,640 - Nakajima , et al. September 8, 1 | 1998-09-08 |
| Temporary hair dyes containing a dispersant, titanium black, pigments and an alcoholic solvent, and processes of producing temporary hair dyes Grant 5,733,344 - Shiraishi , et al. March 31, 1 | 1998-03-31 |
| Ball-point pen with back flow stop Grant 5,711,626 - Kobayashi , et al. January 27, 1 | 1998-01-27 |
| Teeth coating liquid Grant 5,693,313 - Shiraishi , et al. December 2, 1 | 1997-12-02 |
| Metal tip for ball-point pen Grant 5,690,442 - Sato , et al. November 25, 1 | 1997-11-25 |
| Ball-point pen Grant 5,655,847 - Kobayashi , et al. August 12, 1 | 1997-08-12 |
| Non-baked color pencil leads and method for preparing same Grant 5,595,700 - Kitazawa January 21, 1 | 1997-01-21 |
| Aqueous ink composition for ball point pen Grant 5,580,374 - Okumura , et al. December 3, 1 | 1996-12-03 |
| Liquid cosmetic composition Grant 5,478,552 - Hasegawa December 26, 1 | 1995-12-26 |
| Carbon material for electrodes and process for preparing it Grant 5,391,433 - Kawakubo , et al. February 21, 1 | 1995-02-21 |
| Micro-electrode and method for preparing it Grant 5,380,422 - Negishi , et al. January 10, 1 | 1995-01-10 |
| Carbon micro-sensor electrode and method for preparing it Grant 5,376,251 - Kaneko , et al. December 27, 1 | 1994-12-27 |
| Ink volatilization preventing composition for aqueous ball point pen Grant 5,348,989 - Shiraishi September 20, 1 | 1994-09-20 |
| Aqueous pigment ink composition for ball-point pens Grant 5,281,262 - Saito January 25, 1 | 1994-01-25 |
| Tapered carbon microelectrode and process for production thereof Grant 5,218,757 - Kaneko , et al. June 15, 1 | 1993-06-15 |
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