Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8439983 | Sealed battery with electrode terminal welded to current collector, and manufacturing method for the same | Eiji Okutani, Atsushi Obayashi, Tomokazu Yamanaka, Ryuji Oshita | 2013-05-14 |
| 7258948 | Non-aqueous electrolyte secondary battery and manufacturing methods of an electrode used therein | Jun Okazaki, Ryuji Ohshita, Hitoshi Tanaka, Yoshinobu Okumura | 2007-08-21 |
| 7163565 | Electrode plate for secondary battery, method of manufacturing the same, and secondary battery using the same | Toshirou Yanagawa, Tadatoshi Fukuta, Hitoshi Tanaka, Yoshinobu Okumura, Ryuji Ohshita +1 more | 2007-01-16 |
| 6818351 | Mixed cathode active material for lithium secondary battery | Takuya Sunagawa, Masatoshi Takahashi | 2004-11-16 |