NAKAJIMA; Tooru
Patent Applications and Registrations
Patent applications and USPTO patent grants for NAKAJIMA; Tooru.The latest application filed is for "writing implement".
- NAKAJIMA; Tooru - Yokohama-shi Kanagawa
- Nakajima; Tooru - Yokohama JP
- Nakajima; Tooru - Fujioka JP
- Nakajima; Tooru - Fujioka-shi JP
- Nakajima; Tooru - Tsuchiura-shi JP
- Nakajima; Tooru - Narashino JP
- Nakajima; Tooru - Tokyo JP
| Patent | Date |
|---|---|
| Writing Implement App 20220194120 - NAKAJIMA; Tooru ; et al. | 2022-06-23 |
| Erasing member and erasing tool using the same Grant 11,207,913 - Banzai , et al. December 28, 2 | 2021-12-28 |
| Ballpoint pen Grant 10,576,774 - Fukumoto , et al. | 2020-03-03 |
| Writing instrument Grant 10,507,684 - Nakajima , et al. Dec | 2019-12-17 |
| Writing implement Grant 10,336,129 - Nakajima , et al. | 2019-07-02 |
| Writing Instrument App 20180370274 - Nakajima; Tooru ; et al. | 2018-12-27 |
| Ballpoint Pen App 20180319200 - Fukumoto; Takeo ; et al. | 2018-11-08 |
| Writing implement Grant 9,889,701 - Fukumoto , et al. February 13, 2 | 2018-02-13 |
| Writing Implement App 20170144472 - NAKAJIMA; Tooru ; et al. | 2017-05-25 |
| Writing instrument Grant 9,636,940 - Kamitani , et al. May 2, 2 | 2017-05-02 |
| Writing Implement App 20170028769 - Fukumoto; Takeo ; et al. | 2017-02-02 |
| Writing Instrument App 20150298489 - KAMITANI; Toshimi ; et al. | 2015-10-22 |
| Valved applicator Grant 8,944,716 - Sawa , et al. February 3, 2 | 2015-02-03 |
| Erasing Member And Erasing Tool Using The Same App 20140150203 - Banzai; Satoru ; et al. | 2014-06-05 |
| Valved Applicator App 20120141189 - Sawa; Yukinori ; et al. | 2012-06-07 |
| Grease Composition And Process For Production Thereof App 20110111995 - Akita; Hideki ; et al. | 2011-05-12 |
| Switching power supply circuit and frequency converter Grant 7,394,668 - Nakajima , et al. July 1, 2 | 2008-07-01 |
| Switching power supply circuit and frequency converter Grant 7,151,680 - Nakajima , et al. December 19, 2 | 2006-12-19 |
| Power converter Grant 6,927,665 - Nakatsu , et al. August 9, 2 | 2005-08-09 |
| Power converter Grant 6,873,240 - Nakatsu , et al. March 29, 2 | 2005-03-29 |
| Power converter App 20050052271 - Nakatsu, Kinya ; et al. | 2005-03-10 |
| Switching power supply circuit and frequency converter App 20040066661 - Nakajima, Tooru ; et al. | 2004-04-08 |
| Power converter App 20030038699 - Nakatsu, Kinya ; et al. | 2003-02-27 |
| Filtering material of apatite and glucan used for surgical masks and method of making it Grant 5,143,752 - Nakajima , et al. September 1, 1 | 1992-09-01 |
| Digital telephone and data exchange equipment cabinet Grant D293,317 - Umezu , et al. December 22, 1 | 1987-12-22 |
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