Masunaga; Hiroshi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Masunaga; Hiroshi.The latest application filed is for "power conversion device".
Company Profile
13.32.38
- Masunaga; Hiroshi - Yokohama JP
- MASUNAGA; Hiroshi - Chuo-ku JP
- MASUNAGA; Hiroshi - Yokohama-shi Kanagawa
- Masunaga; Hiroshi - Tokyo JP
- Masunaga; Hiroshi - Kanagawa JP
Patent Activity
| Patent | Date |
|---|---|
| Backrest and chair Grant 11,439,239 - Masunaga , et al. September 13, 2 | 2022-09-13 |
| Power Conversion Device App 20220286062 - TSURUTA; Ryoji ; et al. | 2022-09-08 |
| Backrest And Chair App 20210337971 - MASUNAGA; Hiroshi ; et al. | 2021-11-04 |
| Armrest and chair Grant 11,019,928 - Takagi , et al. June 1, 2 | 2021-06-01 |
| Load support structure for chair, load support body for chair, and chair Grant 11,019,930 - Masunaga , et al. June 1, 2 | 2021-06-01 |
| Backrest, lumbar support, chair, attachment structure for optional member, optional member, and furniture Grant 10,966,530 - Masunaga , et al. April 6, 2 | 2021-04-06 |
| Armrest and chair Grant 10,932,575 - Masunaga , et al. March 2, 2 | 2021-03-02 |
| Backrest, lumbar support, chair, attachment structure for optional member, optional member, and furniture Grant 10,932,573 - Masunaga , et al. March 2, 2 | 2021-03-02 |
| Armrest and chair Grant 10,898,001 - Masunaga , et al. January 26, 2 | 2021-01-26 |
| Uninterruptible power supply device Grant 10,756,567 - Masunaga , et al. A | 2020-08-25 |
| Load Support Structure For Chair, Load Support Body For Chair, And Chair App 20190307250 - MASUNAGA; Hiroshi ; et al. | 2019-10-10 |
| Armrest, Furniture Component, And Chair App 20190307251 - TAKAGI; Yuuichirou ; et al. | 2019-10-10 |
| Backrest, Lumbar Support, Chair, Attachment Structure For Optional Member, Optional Member, And Furniture App 20190298069 - MASUNAGA; Hiroshi ; et al. | 2019-10-03 |
| Armrest And Chair App 20190298071 - MASUNAGA; Hiroshi ; et al. | 2019-10-03 |
| Furniture, load support member for chair, and chair Grant 10,334,953 - Masunaga , et al. | 2019-07-02 |
| Reaction force mechanism and chair using same Grant 10,264,886 - Masunaga | 2019-04-23 |
| Power supply system Grant 10,263,459 - Ohnishi , et al. | 2019-04-16 |
| Uninterruptible power supply device and uninterruptible power supply system using the same Grant 10,263,457 - Nishimura , et al. | 2019-04-16 |
| Chair Grant 10,159,350 - Igarashi , et al. Dec | 2018-12-25 |
| Uninterruptible Power Supply Device App 20180316216 - MASUNAGA; Hiroshi ; et al. | 2018-11-01 |
| Uninterruptible power supply device and uninterruptible power supply system using the same Grant 10,050,469 - Nishimura , et al. August 14, 2 | 2018-08-14 |
| Bidirectional insulated DC/DC converter and smart network using the same Grant 10,044,281 - Sanada , et al. August 7, 2 | 2018-08-07 |
| Uninterruptible Power Supply Device And Uninterruptible Power Supply System Using The Same App 20180076657 - NISHIMURA; Kazuki ; et al. | 2018-03-15 |
| Uninterruptible Power Supply Device And Uninterruptible Power Supply System Using The Same App 20180076656 - NISHIMURA; Kazuki ; et al. | 2018-03-15 |
| Reaction Force Mechanism And Chair Using Same App 20180008046 - MASUNAGA; Hiroshi | 2018-01-11 |
| Furniture, Load Support Member For Chair, And Chair App 20170311724 - MASUNAGA; Hiroshi ; et al. | 2017-11-02 |
| Uninterruptible power supply apparatus Grant 9,755,457 - Lee , et al. September 5, 2 | 2017-09-05 |
| Height adjustment device in fixture, and armrest device for chair provided with height adjustment device Grant 9,603,451 - Masunaga , et al. March 28, 2 | 2017-03-28 |
| Chair Grant 9,578,968 - Masunaga , et al. February 28, 2 | 2017-02-28 |
| Bidirectional Insulated Dc/dc Converter And Smart Network Using The Same App 20160233778 - SANADA; Kazunori ; et al. | 2016-08-11 |
| Uninterruptible Power Supply Apparatus App 20160226301 - LEE; Tingan ; et al. | 2016-08-04 |
| Chair App 20160220036 - MASUNAGA; Hiroshi ; et al. | 2016-08-04 |
| Chair App 20160120320 - IGARASHI; Ryo ; et al. | 2016-05-05 |
| Chair App 20160100691 - MASUNAGA; Hiroshi ; et al. | 2016-04-14 |
| Chair App 20150265058 - Igarashi; Ryo ; et al. | 2015-09-24 |
| Power Supply System App 20150207362 - Ohnishi; Keisuke ; et al. | 2015-07-23 |
| Height Adjustment Device In Fixture, And Armrest Device For Chair Provided With Height Adjustment Device App 20150130250 - Masunaga; Hiroshi ; et al. | 2015-05-14 |
| Stretching structure of chair upholstery material Grant 8,777,321 - Masunaga , et al. July 15, 2 | 2014-07-15 |
| Chair With Armrest App 20130207427 - Masunaga; Hiroshi ; et al. | 2013-08-15 |
| Chair App 20130169017 - Masunaga; Hiroshi ; et al. | 2013-07-04 |
| Stretching Structure Of Chair Upholstery Material App 20120313419 - Masunaga; Hiroshi ; et al. | 2012-12-13 |
| Backrest device in a chair Grant 8,191,970 - Igarashi , et al. June 5, 2 | 2012-06-05 |
| Locking device for a movable member in a chair Grant 8,172,323 - Masunaga May 8, 2 | 2012-05-08 |
| Chair backrest device Grant 8,172,332 - Masunaga , et al. May 8, 2 | 2012-05-08 |
| Chair App 20110198907 - Masunaga; Hiroshi ; et al. | 2011-08-18 |
| Chair and the structure for stretching a mesh over an element of the chair Grant 7,837,272 - Masunaga , et al. November 23, 2 | 2010-11-23 |
| Backrest-tilting device Grant 7,726,740 - Masunaga June 1, 2 | 2010-06-01 |
| Locking Device For A Movable Member In A Chair App 20100109402 - Masunaga; Hiroshi | 2010-05-06 |
| Chair Backrest Device App 20100001572 - Masunaga; Hiroshi ; et al. | 2010-01-07 |
| Backrest Device In A Chair App 20090127914 - Igarashi; Ryo ; et al. | 2009-05-21 |
| Chair and the Structure for Stretching a Mesh Over an Element of the Chair App 20080284229 - Masunaga; Hiroshi ; et al. | 2008-11-20 |
| Backrest-Tilting Device App 20080061614 - Masunaga; Hiroshi | 2008-03-13 |
| Chair Grant 7,246,859 - Igarashi , et al. July 24, 2 | 2007-07-24 |
| Tilting mechanism for a chair and a chair having the same Grant 7,243,993 - Igarashi , et al. July 17, 2 | 2007-07-17 |
| Chair App 20060244295 - IGARASHI; Ryo ; et al. | 2006-11-02 |
| Tilting Mechanism For A Chair And A Chair Having The Same App 20060238009 - IGARASHI; Ryo ; et al. | 2006-10-26 |
| Tilting mechanism for a chair and chair having the same Grant 7,097,249 - Igarashi , et al. August 29, 2 | 2006-08-29 |
| Power module Grant 6,687,106 - Tanaka , et al. February 3, 2 | 2004-02-03 |
| Chair App 20040017102 - Igarashi, Ryo ; et al. | 2004-01-29 |
| Backrest of a chair Grant 6,626,497 - Nagamitsu , et al. September 30, 2 | 2003-09-30 |
| Power conversion apparatus App 20030086231 - Asaeda, Takeaki ; et al. | 2003-05-08 |
| Three Level Inverter Controller Reducing Commutation Loop Inductance App 20030048650 - Asaeda, Takeaki ; et al. | 2003-03-13 |
| Backrest of a chair App 20020060492 - Nagamitsu, Satoshi ; et al. | 2002-05-23 |
| Chair Grant 6,257,665 - Nagamitsu , et al. July 10, 2 | 2001-07-10 |
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