Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10044024 | Apparatus for manufacturing negative-electrode carbon material, and method for manufacturing negative-electrode carbon material using same | Tatsuo Umeno, Shinya Okabe, SHIROU OIE, JYUGO SUMITOMO, SHIGEYOSI NAKANO | 2018-08-07 |
| 9312532 | Negative electrode material for lithium ion secondary batteries, and method for producing same | Tatsuo Umeno, Koutarou Mizuma, Shinya Okabe, Shiroh Oie | 2016-04-12 |
| 6939526 | Graphite particles and process for production thereof | Kenji Fukuda, Tatsuo Umeno, Kohei Murayama, Youichiro Hara | 2005-09-06 |
| 6884545 | Anode material for lithium secondary battery, process for production thereof, and lithium secondary battery | Kenji Fukuda, Tatsuo Umeno, Kohei Murayama, Yoshinori Yasumoto, Youichiro Hara | 2005-04-26 |
| 6770399 | Composite material for anode of lithium secondary battery, and lithium secondary battery | Tatsuo Umeno, Kenji Fukuda, Youichiro Hara | 2004-08-03 |
| 6432583 | Anode material for lithium secondary battery, process for production thereof, and lithium secondary battery | Kenji Fukuda, Youichiro Hara, Tatsuo Umeno, Takashi Hiruta, Yoshinori Yasumoto +2 more | 2002-08-13 |
| 6383686 | Anode material for lithium secondary battery, lithium secondary battery using said anode material, and method for charging of said secondary battery | Tatsuo Umeno, Kenji Fukuda, Takashi Hiruta, Yoshinori Yasumoto, Youichiro Hara +1 more | 2002-05-07 |