Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11214751 | Metalworking oil composition and metalworking method | Hideo Sugii, Keiji Noma, Seikichi Kitabatake, Isao Noguchi, Takeshi Kubota +2 more | 2022-01-04 |
| 8248043 | Control circuit for DC-DC converter, control method for DC-DC converter, and electronic device | Koichi Inatomi | 2012-08-21 |
| 8072199 | Control circuit for step-down DC-DC converter, step-down DC-DC converter and control method thereof | — | 2011-12-06 |
| 4656466 | Electro-optic display device | Masaaki Yoshida, Ryoichi Yoshikawa, Masanori Yamada | 1987-04-07 |
| 4382666 | Indicating device for computer type electronic flash apparatus | Shohei Ohtaki, Zenzo Nakamura | 1983-05-10 |