Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8081000 | Evaluation method and evaluation apparatus for evaluating battery safety, and battery whose safety indices have been determined with the same | Shinji Kasamatsu, Masato Fujikawa, Mikinari Shimada | 2011-12-20 |
| 8017262 | Lithium secondary battery with porous heat-resistant layer | Masato Fujikawa, Shinji Kasamatsu, Hideharu Takezawa, Mikinari Shimada | 2011-09-13 |
| 8013577 | Charging system, charging apparatus and battery pack | — | 2011-09-06 |
| 7803485 | Positive electrode for lithium secondary battery, and lithium secondary battery using the same | Hideharu Takezawa | 2010-09-28 |
| 7754375 | Lithium ion secondary battery and method for producing the same | Masato Fujikawa, Mikinari Shimada | 2010-07-13 |
| 7687202 | Non-aqueous electrolyte secondary battery | Shinji Kasamatsu, Hideharu Takezawa, Kazuhiro Okamura, Mikinari Shimada | 2010-03-30 |
| 7336081 | Cell evaluation device including short circuit detector | Shinji Kasamatsu, Mikinari Shimada | 2008-02-26 |
| 6713217 | Nonaqueous electrolyte secondary battery with a polyolefin microporous membrane separator | Takafumi Oura, Masaki Kitagawa, Hizuru Koshina | 2004-03-30 |
| 6627352 | Lithium ion secondary battery and its negative electrode | Masaya Okochi, Masaki Kitagawa, Takashi Takeuchi, Hizuru Koshina | 2003-09-30 |
| 6455199 | Nonaqueous electrolyte secondary battery and method for manufacturing negative electrode of the same | Masaki Kitagawa, Yoshihiro Kashihara, Hizuru Koshina, Toyoji Sugimoto, Kunio Tsuruta +4 more | 2002-09-24 |