Issued Patents All Time
Showing 76–81 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5262255 | Negative electrode for non-aqueous electrolyte secondary battery | Shuji Ito, Masaki Hasegawa, Yasuhiko Bito | 1993-11-16 |
| 5229226 | Nonaqueous electrolyte secondary battery with boron tricarbide or pentacarbon nitride as anode | Yasuhiko Bito, Masaki Hasegawa, Shuji Ito | 1993-07-20 |
| 5159232 | Spark plugs for internal-combustion engines | Yasuyuki Sato, Kozo Takamura | 1992-10-27 |
| 5124612 | Spark plug for internal-combustion engine | Kozo Takamura, Yasuyuki Sato | 1992-06-23 |
| 4853582 | Spark plug for use in internal combustion engine | Yasuyuki Sato, Masaki Sugata | 1989-08-01 |
| 4845400 | Spark plug for internal-combustion engine | Kozo Takamura, Yasuyuki Sato | 1989-07-04 |