Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5958620 | Cylindrical battery | — | 1999-09-28 |
| 5935731 | Cylindrical battery | — | 1999-08-10 |
| 5591546 | Secondary cell | — | 1997-01-07 |
| 5534369 | Battery having divided electrode portions | — | 1996-07-09 |
| 5478675 | Secondary battery | — | 1995-12-26 |
| 5370710 | Nonaqueous electrolyte secondary cell | Hisayuki Kato | 1994-12-06 |
| 5292601 | Nonaqueous electrolyte secondary battery | Naoyuki Sugeno, Masanori Anzai | 1994-03-08 |
| 5273842 | Non-aqueous electrolyte secondary battery | Takayuki Yamahira | 1993-12-28 |
| 4943497 | Cell having current cutoff valve | Shigeru Oishi, Takao Abe, Mochiyuki Watanabe | 1990-07-24 |
| 4891282 | Organic electrolyte cell | Shigeru Oishi | 1990-01-02 |
| 4828834 | Rechargeable organic electrolyte cell | Masaaki Yokokawa, Toshio Hashimoto | 1989-05-09 |
| 4770960 | Organic electrolyte cell | Toshio Hashimoto | 1988-09-13 |
| 4687716 | Organic electrolyte cell | — | 1987-08-18 |
| 4370395 | Alkaline cell | Takayuki Aita | 1983-01-25 |