Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11502294 | Solution and method for producing the same, and a method for producing active material, for secondary battery | Toshihiko Ueyama, Koji Tanoue | 2022-11-15 |
| 11228030 | Solution and method for producing the same, and a method for producing active material for secondary battery | Toshihiko Ueyama, Koji Tanoue | 2022-01-18 |
| 10680245 | Active material composite powder, lithium battery, and method for manufacturing the same | Takayuki Uchiyama, Nariaki Miki, Koji Tanoue | 2020-06-09 |
| 9761907 | Positive-electrode active-material powder and manufacturing method therefor | Koji Tanoue | 2017-09-12 |
| 8343453 | Carrier core material for electrophotographic developer and method for producing the same, carrier for electrophotographic developer, and electrophotographic developer | Tomoya Yamada, Isao Fujita | 2013-01-01 |
| 6771075 | Air ion measuring device | Shunichi Takahashi | 2004-08-03 |
| 6768311 | Ion measuring device | Wakao Sakamoto | 2004-07-27 |
| 6703785 | Negative ion generator | Wakao Sakamoto | 2004-03-09 |
| 5599780 | Metal working oil composition | Sabro Koyama, Tahei Okada | 1997-02-04 |