Kumagai; Ryunosuke
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kumagai; Ryunosuke.The latest application filed is for "tool holding apparatus and power tool, and impact tool".
Company Profile
17.41.38
- Kumagai; Ryunosuke - Anjo JP
- KUMAGAI; Ryunosuke - Anjo-Shi JP
Patent Activity
| Patent | Date |
|---|---|
| Power tool Grant 11,407,091 - Kumagai , et al. August 9, 2 | 2022-08-09 |
| Tool Holding Apparatus And Power Tool, And Impact Tool App 20220055191 - KUMAGAI; Ryunosuke ; et al. | 2022-02-24 |
| Electric working machine and method of controlling rotational state of motor of electric working machine Grant 11,247,323 - Kumagai , et al. February 15, 2 | 2022-02-15 |
| Tool holding apparatus and power tool, and impact tool Grant 11,192,223 - Kumagai , et al. December 7, 2 | 2021-12-07 |
| Impact Tool App 20210276164 - KUMAGAI; Ryunosuke ; et al. | 2021-09-09 |
| Impact tool Grant 11,045,926 - Kumagai , et al. June 29, 2 | 2021-06-29 |
| Electric tool Grant 10,994,404 - Ito , et al. May 4, 2 | 2021-05-04 |
| Impact tool Grant 10,967,496 - Kumagai , et al. April 6, 2 | 2021-04-06 |
| Power tool Grant 10,906,163 - Nagasaka , et al. February 2, 2 | 2021-02-02 |
| Power Tool App 20210016420 - KUMAGAI; Ryunosuke ; et al. | 2021-01-21 |
| Power tool Grant 10,821,577 - Kumagai , et al. November 3, 2 | 2020-11-03 |
| Power Tool App 20200047319 - NAGASAKA; Hidenori ; et al. | 2020-02-13 |
| Tool Holding Apparatus And Power Tool, And Impact Tool App 20200009709 - KUMAGAI; Ryunosuke ; et al. | 2020-01-09 |
| Electric working machine Grant 10,491,148 - Ichikawa , et al. Nov | 2019-11-26 |
| Power tool Grant 10,478,950 - Nagasaka , et al. Nov | 2019-11-19 |
| Rotary impact tool Grant 10,343,268 - Hirabayashi , et al. July 9, 2 | 2019-07-09 |
| Electric power tool Grant 10,322,498 - Ishikawa , et al. | 2019-06-18 |
| Impact Tool App 20190143491 - KUMAGAI; Ryunosuke ; et al. | 2019-05-16 |
| Impact Tool App 20190134800 - KUMAGAI; Ryunosuke ; et al. | 2019-05-09 |
| Electric Tool App 20190077005 - ITO; Miyabi ; et al. | 2019-03-14 |
| Impact tool Grant 10,213,907 - Kumagai , et al. Feb | 2019-02-26 |
| Impact tool Grant 10,213,912 - Kumagai , et al. Feb | 2019-02-26 |
| Electric Working Machine And Method Of Controlling Rotational State Of Motor Of Electric Working Machine App 20190047132 - Kumagai; Ryunosuke ; et al. | 2019-02-14 |
| Electric tool Grant 10,155,304 - Ito , et al. Dec | 2018-12-18 |
| Power Tool App 20180222022 - KUMAGAI; Ryunosuke ; et al. | 2018-08-09 |
| Impact Tool App 20170203418 - KUMAGAI; Ryunosuke ; et al. | 2017-07-20 |
| Electric Tool App 20170182649 - ITO; Miyabi ; et al. | 2017-06-29 |
| Electric power tool Grant 9,676,092 - Kumagai June 13, 2 | 2017-06-13 |
| Power Tool App 20170151657 - NAGASAKA; Hidenori ; et al. | 2017-06-01 |
| Electric Working Machine App 20170133965 - ICHIKAWA; Yoshitaka ; et al. | 2017-05-11 |
| Impact tool Grant 9,643,300 - Kumagai , et al. May 9, 2 | 2017-05-09 |
| Electric tool Grant 9,630,310 - Ito , et al. April 25, 2 | 2017-04-25 |
| Rechargeable electric tool Grant 9,463,565 - Nagasaka , et al. October 11, 2 | 2016-10-11 |
| Electric Power Tool App 20160107297 - ISHIKAWA; Goshi ; et al. | 2016-04-21 |
| Electric Tool App 20150328763 - ITO; Miyabi ; et al. | 2015-11-19 |
| Electric Power Tool App 20150158157 - Hirabayashi; Tokuo ; et al. | 2015-06-11 |
| Rotary Impact Tool App 20150144365 - Hirabayashi; Tokuo ; et al. | 2015-05-28 |
| Power Tool App 20150135907 - Hirabayashi; Tokuo ; et al. | 2015-05-21 |
| Electric power tool suspending attachment and electric power tool equipped with the same Grant 9,016,397 - Kuroyanagi , et al. April 28, 2 | 2015-04-28 |
| Impact Tool App 20150041169 - KUMAGAI; Ryunosuke ; et al. | 2015-02-12 |
| Electric tools Grant 8,952,581 - Naito , et al. February 10, 2 | 2015-02-10 |
| Electric Power Tool App 20150027743 - Kumagai; Ryunosuke | 2015-01-29 |
| Impact tool Grant 8,827,003 - Nagasaka , et al. September 9, 2 | 2014-09-09 |
| Rechargeable Electric Tool App 20140190718 - NAGASAKA; Hidenori ; et al. | 2014-07-10 |
| Impact Tool App 20140182869 - KUMAGAI; Ryunosuke ; et al. | 2014-07-03 |
| Rechargeable electric tool Grant 8,733,471 - Nagasaka , et al. May 27, 2 | 2014-05-27 |
| Rechargeable electric tool Grant 8,708,063 - Nagasaka , et al. April 29, 2 | 2014-04-29 |
| Electric Power Tool App 20140091648 - KUMAGAI; Ryunosuke | 2014-04-03 |
| Impact tool with a protecting cover Grant 8,607,893 - Kumagai , et al. December 17, 2 | 2013-12-17 |
| Hook for electric power tools and electric power tool equipped with the hook Grant 8,573,322 - Nagasaka , et al. November 5, 2 | 2013-11-05 |
| Electric wheeled apparatus powered by battery packs Grant 8,490,732 - Sugimoto , et al. July 23, 2 | 2013-07-23 |
| Falling Prevention Structure For Socket In Electric Power Tool App 20130180368 - KUMAGAI; Ryunosuke ; et al. | 2013-07-18 |
| Hook for electric power tool and rechargeable electric power tool equipped with the hook Grant 8,443,913 - Nagasaka , et al. May 21, 2 | 2013-05-21 |
| Portable electric driver Grant D679,160 - Okuda , et al. April 2, 2 | 2013-04-02 |
| Portable electric driver Grant D677,137 - Kawase , et al. March 5, 2 | 2013-03-05 |
| Electric Tools App 20130033134 - NAITO; Akira ; et al. | 2013-02-07 |
| Falling Prevention Structure For Socket Of Power Tool App 20120292865 - Sugimoto; Manabu ; et al. | 2012-11-22 |
| Electric Power Tool Suspending Attachment And Electric Power Tool Equipped With The Same App 20120085560 - KUROYANAGI; Takao ; et al. | 2012-04-12 |
| Rechargeable Electric Tool App 20120073847 - NAGASAKA; Hidenori ; et al. | 2012-03-29 |
| Rechargeable Electric Tool App 20120061117 - NAGASAKA; Hidenori ; et al. | 2012-03-15 |
| Impact Tool App 20120000683 - NAGASAKA; Hidenori ; et al. | 2012-01-05 |
| Electric Tool App 20120000755 - Kumagai; Ryunosuke ; et al. | 2012-01-05 |
| Electric Wheeled Apparatus Powered By Battery Packs App 20110272203 - SUGIMOTO; Manabu ; et al. | 2011-11-10 |
| Impact Tool App 20110180289 - KUMAGAI; Ryunosuke ; et al. | 2011-07-28 |
| Hook For Electric Power Tools And Electric Power Tool Equipped With The Hook App 20110139479 - NAGASAKA; Hidenori ; et al. | 2011-06-16 |
| Hook For Electric Power Tool And Rechargeable Electric Power Tool Equipped With The Hook App 20110108300 - NAGASAKA; Hidenori ; et al. | 2011-05-12 |
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