Tokunaga; Yuichiro
Patent Applications and Registrations
Patent applications and USPTO patent grants for Tokunaga; Yuichiro.The latest application filed is for "sliding components".
Company Profile
51.59.82
- Tokunaga; Yuichiro - Tokyo JP
- TOKUNAGA; Yuichiro - Minato-ku Tokyo
- Tokunaga; Yuichiro - Kyoto-fu JP
- Tokunaga, Yuichiro - Kanazawa-shi JP
Patent Activity
| Patent | Date |
|---|---|
| Seal device Grant 11,428,324 - Tokunaga , et al. August 30, 2 | 2022-08-30 |
| Sliding Components App 20220268361 - IMURA; Tadatsugu ; et al. | 2022-08-25 |
| Sliding components Grant 11,320,052 - Imura , et al. May 3, 2 | 2022-05-03 |
| Sliding Component App 20220128092 - TOKUNAGA; Yuichiro ; et al. | 2022-04-28 |
| Sliding Components App 20220106980 - IMURA; Tadatsugu ; et al. | 2022-04-07 |
| Seal ring Grant 11,293,553 - Kimura , et al. April 5, 2 | 2022-04-05 |
| Sliding Component App 20220099190 - OU; Iwa ; et al. | 2022-03-31 |
| Sliding Components App 20220099191 - SUZUKI; Hiroshi ; et al. | 2022-03-31 |
| Sliding Components App 20220099138 - SUZUKI; Hiroshi ; et al. | 2022-03-31 |
| Sliding Component App 20220056956 - IMURA; Tadatsugu ; et al. | 2022-02-24 |
| Sliding component Grant 11,248,707 - Imura , et al. February 15, 2 | 2022-02-15 |
| Sliding member Grant 11,248,706 - Imura , et al. February 15, 2 | 2022-02-15 |
| Sliding Member App 20220042602 - TOKUNAGA; Yuichiro | 2022-02-10 |
| Sliding Member App 20210355992 - TOKUNAGA; Yuichiro | 2021-11-18 |
| Sliding component Grant 11,168,793 - Tanishima , et al. November 9, 2 | 2021-11-09 |
| Sliding component Grant 11,143,232 - Negishi , et al. October 12, 2 | 2021-10-12 |
| Sealing member Grant 11,143,029 - Tokunaga , et al. October 12, 2 | 2021-10-12 |
| Sliding component Grant 11,125,335 - Kimura , et al. September 21, 2 | 2021-09-21 |
| Seal device Grant 11,085,539 - Tokunaga , et al. August 10, 2 | 2021-08-10 |
| Seal device Grant 11,078,919 - Tokunaga , et al. August 3, 2 | 2021-08-03 |
| Sliding component Grant 11,053,975 - Imura , et al. July 6, 2 | 2021-07-06 |
| Sliding parts Grant 11,035,411 - Imura , et al. June 15, 2 | 2021-06-15 |
| Seal Ring App 20210164571 - KIMURA; Wataru ; et al. | 2021-06-03 |
| Sliding component Grant 11,009,072 - Kimura , et al. May 18, 2 | 2021-05-18 |
| Sliding component Grant 10,989,249 - Negishi , et al. April 27, 2 | 2021-04-27 |
| Seal Ring App 20210116030 - KIMURA; Wataru ; et al. | 2021-04-22 |
| Seal Ring App 20210116032 - KIMURA; Wataru ; et al. | 2021-04-22 |
| Seal Ring App 20210116029 - KIMURA; Wataru ; et al. | 2021-04-22 |
| Stepped sealing device circumferential pumping groove Grant 10,954,790 - Tokunaga , et al. March 23, 2 | 2021-03-23 |
| Seal Ring App 20210080009 - KIMURA; Wataru ; et al. | 2021-03-18 |
| Sliding component Grant 10,941,863 - Negishi , et al. March 9, 2 | 2021-03-09 |
| Sliding Component App 20210054935 - KIMURA; Wataru ; et al. | 2021-02-25 |
| Sliding Component App 20210054934 - IMURA; Tadatsugu ; et al. | 2021-02-25 |
| Seal Device App 20210054936 - TOKUNAGA; Yuichiro ; et al. | 2021-02-25 |
| Sliding Member App 20210048106 - IMURA; Tadatsugu ; et al. | 2021-02-18 |
| Sliding Components App 20210041026 - IMURA; Tadatsugu ; et al. | 2021-02-11 |
| Sliding part Grant 10,907,684 - Kimura , et al. February 2, 2 | 2021-02-02 |
| Sliding component Grant 10,883,604 - Inoue , et al. January 5, 2 | 2021-01-05 |
| Sliding component Grant 10,883,603 - Inoue , et al. January 5, 2 | 2021-01-05 |
| Sealing ring Grant 10,865,883 - Seki , et al. December 15, 2 | 2020-12-15 |
| Sliding Component App 20200378501 - TANISHIMA; Ayano ; et al. | 2020-12-03 |
| Sliding component Grant 10,781,924 - Inoue , et al. Sept | 2020-09-22 |
| Sliding Component App 20200224768 - IMURA; Tadatsugu ; et al. | 2020-07-16 |
| Sliding Parts App 20200224722 - IMURA; Tadatsugu ; et al. | 2020-07-16 |
| Sliding component having fluid introduction groove and dynamic pressure generation groove Grant 10,704,417 - Tokunaga , et al. | 2020-07-07 |
| Sliding Part App 20200182299 - KIMURA; Wataru ; et al. | 2020-06-11 |
| Sliding Component App 20200158162 - IMURA; Tadatsugu ; et al. | 2020-05-21 |
| Sliding component Grant 10,655,736 - Itadani , et al. | 2020-05-19 |
| Sliding component Grant 10,612,666 - Tokunaga | 2020-04-07 |
| Slide component Grant 10,598,286 - Tokunaga , et al. | 2020-03-24 |
| Sealing Member App 20200063560 - TOKUNAGA; Yuichiro ; et al. | 2020-02-27 |
| Seal Device App 20200063871 - TOKUNAGA; Yuichiro ; et al. | 2020-02-27 |
| Seal Device App 20200063873 - TOKUNAGA; Yuichiro ; et al. | 2020-02-27 |
| Seal Device App 20200032912 - TOKUNAGA; Yuichiro ; et al. | 2020-01-30 |
| Seal Device App 20200018401 - TOKUNAGA; Yuichiro ; et al. | 2020-01-16 |
| Seal Device App 20200018400 - TOKUNAGA; Yuichiro ; et al. | 2020-01-16 |
| Seal Device App 20200011342 - TOKUNAGA; Yuichiro ; et al. | 2020-01-09 |
| Seal Device App 20200011425 - TOKUNAGA; Yuichiro ; et al. | 2020-01-09 |
| Plain bearing and pump Grant 10,519,966 - Yamamoto , et al. Dec | 2019-12-31 |
| Sliding Component App 20190376558 - KIMURA; Wataru ; et al. | 2019-12-12 |
| Sealing device Grant 10,495,228 - Itadani , et al. De | 2019-12-03 |
| Sliding component Grant 10,487,948 - Inoue , et al. Nov | 2019-11-26 |
| Slide component Grant 10,473,220 - Tokunaga , et al. Nov | 2019-11-12 |
| Sliding Component App 20190331162 - NEGISHI; Yuta ; et al. | 2019-10-31 |
| Sliding Component App 20190316682 - NEGISHI; Yuta ; et al. | 2019-10-17 |
| Slide component Grant 10,443,737 - Itadani , et al. Oc | 2019-10-15 |
| Sliding Component App 20190285115 - NEGISHI; Yuta ; et al. | 2019-09-19 |
| Sliding component Grant 10,344,867 - Itadani , et al. July 9, 2 | 2019-07-09 |
| Sliding component Grant 10,337,560 - Tokunaga , et al. | 2019-07-02 |
| Sliding component Grant 10,337,620 - Tokunaga , et al. | 2019-07-02 |
| Sliding Component App 20190170257 - HOSOE; Takeshi ; et al. | 2019-06-06 |
| Sealing Device App 20190169988 - TOKUNAGA; Yuichiro ; et al. | 2019-06-06 |
| Sliding component Grant 10,274,086 - Itadani , et al. | 2019-04-30 |
| Sliding component Grant 10,113,648 - Inoue , et al. October 30, 2 | 2018-10-30 |
| Sliding component Grant 10,072,759 - Inoue , et al. September 11, 2 | 2018-09-11 |
| Sliding Component App 20180223996 - TOKUNAGA; Yuichiro | 2018-08-09 |
| Sealing Device App 20180195618 - ITADANI; Masatoshi ; et al. | 2018-07-12 |
| Sliding Component App 20180187784 - ITADANI; Masatoshi ; et al. | 2018-07-05 |
| Sliding Component App 20180187785 - KATORI; Hikaru ; et al. | 2018-07-05 |
| Slide Component App 20180172162 - TOKUNAGA; Yuichiro ; et al. | 2018-06-21 |
| Mechanical seal Grant 9,982,784 - Osada , et al. May 29, 2 | 2018-05-29 |
| Sliding Component App 20180135699 - TOKUNAGA; Yuichiro ; et al. | 2018-05-17 |
| Sliding Component App 20180128379 - INOUE; Hideyuki ; et al. | 2018-05-10 |
| Slide Component App 20180128377 - TOKUNAGA; Yuichiro ; et al. | 2018-05-10 |
| Sliding Component App 20180128378 - TOKUNAGA; Yuichiro ; et al. | 2018-05-10 |
| Sliding component Grant 9,951,873 - Inoue , et al. April 24, 2 | 2018-04-24 |
| Sliding Component App 20180106374 - ITADANI; Masatoshi ; et al. | 2018-04-19 |
| Sliding Component App 20180106375 - INOUE; Hideyuki ; et al. | 2018-04-19 |
| Sliding Component App 20180106377 - INOUE; Hideyuki ; et al. | 2018-04-19 |
| Sliding Component App 20180106376 - INOUE; Hideyuki ; et al. | 2018-04-19 |
| Sliding Component App 20180073394 - TOKUNAGA; Yuichiro ; et al. | 2018-03-15 |
| Sliding component Grant 9,850,953 - Tokunaga December 26, 2 | 2017-12-26 |
| Sliding parts Grant 9,841,106 - Itadani , et al. December 12, 2 | 2017-12-12 |
| Plain Bearing And Pump App 20170350407 - YAMAMOTO; Shinya ; et al. | 2017-12-07 |
| Sliding component Grant 9,829,109 - Itadani , et al. November 28, 2 | 2017-11-28 |
| Sliding component Grant 9,777,840 - Tokunaga October 3, 2 | 2017-10-03 |
| Sliding component Grant 9,772,037 - Itadani , et al. September 26, 2 | 2017-09-26 |
| Sliding Component App 20170268679 - ITADANI; Masatoshi ; et al. | 2017-09-21 |
| Sliding component Grant 9,765,892 - Itadani , et al. September 19, 2 | 2017-09-19 |
| Slide Component App 20170241549 - ITADANI; Masatoshi ; et al. | 2017-08-24 |
| Sliding Component App 20170167615 - Itadani; Masatoshi ; et al. | 2017-06-15 |
| Sliding Component App 20170146131 - INOUE; Hideyuki ; et al. | 2017-05-25 |
| Sliding Component App 20170138482 - INOUE; Hideyuki ; et al. | 2017-05-18 |
| Sliding Component App 20170130844 - Itadani; Masatoshi ; et al. | 2017-05-11 |
| Sliding Component App 20170114902 - Itadani; Masatoshi ; et al. | 2017-04-27 |
| Sliding Parts App 20170102074 - Itadani; Masatoshi ; et al. | 2017-04-13 |
| Sliding component Grant 9,611,938 - Itadani , et al. April 4, 2 | 2017-04-04 |
| Sliding component Grant 9,587,745 - Itadani , et al. March 7, 2 | 2017-03-07 |
| Sealing Ring App 20170009889 - SEKI; Masatoshi ; et al. | 2017-01-12 |
| Sliding Component App 20160377122 - Tokunaga; Yuichiro | 2016-12-29 |
| Sliding component Grant 9,470,267 - Tokunaga October 18, 2 | 2016-10-18 |
| Sliding parts Grant 9,353,867 - Itadani , et al. May 31, 2 | 2016-05-31 |
| Sliding component Grant 9,347,566 - Tokunaga May 24, 2 | 2016-05-24 |
| Sliding parts Grant 9,322,436 - Tokunaga , et al. April 26, 2 | 2016-04-26 |
| Sliding component Grant 9,291,200 - Tokunaga March 22, 2 | 2016-03-22 |
| Sliding component Grant 9,279,455 - Tokunaga March 8, 2 | 2016-03-08 |
| Sliding Component App 20160033045 - Itadani; Masatoshi ; et al. | 2016-02-04 |
| Sliding Parts App 20150377360 - ITADANI; Masatoshi ; et al. | 2015-12-31 |
| Sliding Parts App 20150377297 - TOKUNAGA; Yuichiro ; et al. | 2015-12-31 |
| Sliding component Grant 9,169,931 - Tokunaga , et al. October 27, 2 | 2015-10-27 |
| Sliding Component App 20150260292 - Inoue; Hideyuki ; et al. | 2015-09-17 |
| Sliding Component App 20150167847 - Tokunaga; Yuichiro | 2015-06-18 |
| Sliding Component App 20150123350 - Itadani; Masatoshi ; et al. | 2015-05-07 |
| Sliding Component App 20150115540 - Tokunaga; Yuichiro | 2015-04-30 |
| Sliding Component App 20150115537 - Tokunaga; Yuichiro | 2015-04-30 |
| Sliding Component App 20140314352 - Tokunaga; Yuichiro | 2014-10-23 |
| Sliding Component App 20140294330 - Tokunaga; Yuichiro | 2014-10-02 |
| Sliding Component App 20140294331 - Tokunaga; Yuichiro | 2014-10-02 |
| Sliding component Grant 8,814,433 - Tokunaga August 26, 2 | 2014-08-26 |
| Mechanical Seal App 20140167361 - Osada; Haruhiro ; et al. | 2014-06-19 |
| Sealing Device And Sealing Structure App 20130228978 - Nakazono; Yusaku ; et al. | 2013-09-05 |
| Sliding Component App 20130209011 - Tokunaga; Yuichiro | 2013-08-15 |
| Sliding Component App 20110215531 - Tokunaga; Yuichiro ; et al. | 2011-09-08 |
| Methods for measuring strength of film and determining quality of object having the film Grant 7,040,170 - Tokunaga , et al. May 9, 2 | 2006-05-09 |
| Methods for measuring strength of film and determining quality of object having the film App 20050039534 - Tokunaga, Yuichiro ; et al. | 2005-02-24 |
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