Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12286683 | High-strength steel sheet having excellent delayed fracture resistance | Kosuke SHIBATA, Junichiro Kinugasa, Atsuhiro SHIRAKI | 2025-04-29 |
| 12126239 | Electric power unit | Daisuke OGASAWARA, Yuki Ishikawa, Jun MURAKAMI, Hiroki Akaishi, Kazuyuki Yamamoto | 2024-10-22 |
| 11894751 | Drive device | Yuki Ishikawa, Kouhei OBA | 2024-02-06 |
| 11863043 | Rotary electric machine and drive device | Yuki Ishikawa | 2024-01-02 |
| 11837940 | Transmission mechanism device and drive device | Yuki Ishikawa | 2023-12-05 |
| 11828358 | Transmission mechanism device and drive device including oil catch tank | Yuki Ishikawa | 2023-11-28 |
| 11608883 | Drive device | Yuki Ishikawa | 2023-03-21 |
| 11598410 | Drive device | Yuki Ishikawa | 2023-03-07 |
| 11578798 | Drive device | Yuki Ishikawa, Sota DOI | 2023-02-14 |
| 10317842 | Timepiece mainspring, timepiece drive device, timepiece movement, timepiece, and manufacturing method of timepiece mainspring | Masao Takeuchi, Shogo Kobayashi | 2019-06-11 |
| 9972972 | Vertical cavity light emitting device | Komei Tazawa, Ji-Hao Liang, Seiichiro Kobayashi, Masaru Takizawa | 2018-05-15 |
| 8687075 | Imaging apparatus and information display method for imaging apparatus | Senichi Onoda, Jun Takemura | 2014-04-01 |
| 7905506 | Step holder mounting structure of motorcycle | Yuzuru Ishikawa | 2011-03-15 |