Issued Patents All Time
Showing 25 most recent of 71 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1050068 | Speaker | Mayu Hatanaka, Taichi Nokuo | 2024-11-05 |
| D1008209 | Speaker | Kenji Katsumata | 2023-12-19 |
| 11605716 | Nitride semiconductor substrate and method of manufacturing the same | Hiroshi Oishi, Yoshihisa Abe, Kenichi Eriguchi | 2023-03-14 |
| 11509983 | Audio reproduction device | Takayuki NEGISHI | 2022-11-22 |
| 11201217 | Nitride semiconductor substrate | Kenichi Eriguchi, Yoshihisa Abe | 2021-12-14 |
| D928741 | Audio system | Hitoshi Takahashi, Tatsuya Yagihashi, Daisuke Kurihara | 2021-08-24 |
| 10825895 | Nitride semiconductor substrate | Yoshihisa Abe, Kenichi Eriguchi | 2020-11-03 |
| D900059 | Audio system | — | 2020-10-27 |
| 10068858 | Compound semiconductor substrate | Yoshihisa Abe, Kenichi Eriguchi, Noriko Omori, Hiroshi Oishi | 2018-09-04 |
| 9748344 | Nitride semiconductor substrate having recesses at interface between base substrate and initial nitride | Noriko Omori, Hiroshi Oishi, Yoshihisa Abe, Kenichi Eriguchi, Tomoko Watanabe | 2017-08-29 |
| 9536955 | Nitride semiconductor substrate | Kenichi Eriguchi, Akira Yoshida, Hiroshi Oishi, Yoshihisa Abe, Shunichi Suzuki | 2017-01-03 |
| 9530846 | Nitride semiconductor substrate | Noriko Omori, Hiroshi Oishi, Yoshihisa Abe, Kenichi Eriguchi | 2016-12-27 |
| 9117743 | Nitride semiconductor substrate | Akira Yoshida, Hiroshi Oishi | 2015-08-25 |
| 9086321 | Method of analyzing nitride semiconductor layer and method of manufacturing nitride semiconductor substrate using the analysis method | Yoshihata Yanase, Hiroshi Shirai, Hiroshi Oishi | 2015-07-21 |
| 8785942 | Nitride semiconductor substrate and method of manufacturing the same | Akira Yoshida, Yoshihisa Abe, Hiroshi Oishi, Kenichi Eriguchi, Shunichi Suzuki | 2014-07-22 |
| 8637960 | Nitride semiconductor substrate | Yoshihisa Abe, Hiroshi Oishi, Akira Yoshida, Kenichi Eriguchi, Shunichi Suzuki | 2014-01-28 |
| D682257 | Earphone | Qi-Sheng Zheng, Rui Morisawa, Tomotsugu Minamikawa, Taichi Nokuo | 2013-05-14 |
| D679682 | Earphone | Yosuke Shimizu, Keiko Densho, Naoki Sugiyama, Sohei Kitayama, So Morimoto +1 more | 2013-04-09 |
| D676426 | Earphone | — | 2013-02-19 |
| D669057 | Earphone | Qi-Sheng Zheng, Rui Morisawa, Tomotsugu Minamikawa, Taichi Nokuo | 2012-10-16 |
| D666990 | Headphone | Sohei Kitayama | 2012-09-11 |
| 8212288 | Compound semiconductor substrate comprising a multilayer buffer layer | Kenichi Eriguchi, Hiroshi Oishi, Yoshihisa Abe, Akira Yoshida, Shunichi Suzuki | 2012-07-03 |
| D662086 | Earphone | — | 2012-06-19 |
| 8148753 | Compound semiconductor substrate having multiple buffer layers | Hiroshi Oishi, Kenichi Eriguchi, Yoshihisa Abe, Akira Yoshida, Shunichi Suzuki | 2012-04-03 |
| D656125 | Headphone | Sohei Kitayama | 2012-03-20 |