Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10465142 | Lubricating oil composition for internal combustion engines | Mao Ueda, Kiyoshi Hanyuda | 2019-11-05 |
| 10100265 | Lubricating oil composition for internal combustion engines | Kiyoshi Hanyuda, Kouji Murakami, Izumi Kobayashi | 2018-10-16 |
| 9580666 | Lubricating oil composition | Kiyoshi Hanyuda | 2017-02-28 |
| 6704507 | Optical range finder | Ryuzo Nakano | 2004-03-09 |