Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10256464 | Method for producing negative electrode active material for lithium ion secondary battery | Kazuyuki Tohji, Yasumitsu Tanaka, Qiwu Zhang, Hiroyuki Kai | 2019-04-09 |
| 10044033 | Negative electrode active material for lithium ion secondary battery | Kazuyuki Tohji, Yasumitsu Tanaka, Qiwu Zhang, Hiroyuki Kai | 2018-08-07 |
| 9634327 | Negative electrode active material for lithium ion secondary battery, method for producing the same, negative electrode, and battery | Kazuyuki Tohji, Yasumitsu Tanaka, Qiwu Zhang, Hiroyuki Kai | 2017-04-25 |
| 9324556 | Field electron emission film, field electron emission device, light emission device, and method for producing them | Kazuyuki Tohji, Yasumitsu Tanaka, Hiroyuki Kai | 2016-04-26 |
| 9083054 | Lithium ion secondary battery, lithium ion secondary battery negative electrode, battery pack, electric vehicle, electricity storage system, power tool, and electronic apparatus | Takakazu Hirose, Takashi Fujinaga, Isao Koizumi, Kenichi Kawase | 2015-07-14 |
| 5966625 | Method for making a slant-surface silicon wafer having a reconstructed atomic-level stepped surface structure | Lei Zhong, Yoshio Kirino | 1999-10-12 |
| 5744401 | Silicon wafer manufacturing method eliminating final mirror-polishing step | Hiroshi Shirai, Jun Yoshikawa, Youji Ogawa, Kazuhiko Kashima, Kazuya Ookubo +3 more | 1998-04-28 |