KY

Kei Yonezawa

HI Hitachi: 5 patents #7,555 of 28,497Top 30%
SO Sony: 4 patents #8,966 of 25,231Top 40%
MC Murata Manufacturing Co.: 1 patents #3,462 of 5,295Top 70%
Overall (All Time): #509,043 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
9997803 Electrolyte and battery using the same 2018-06-12
9450244 Cathode active material with zirconium in crystal grain boundary of lithium cobalt complex oxide Takashi Sato, Tsuyoshi Okawa, Yoshikatsu Yamamoto 2016-09-20
9168841 Method of receiving charge, method of controlling charge, charge control unit and charging equipment Shoji Kawai, Tomoyuki Marui, Masami Takahashi, Kazumi Rissen, Takafumi Ebara +1 more 2015-10-27
8197968 Cathode active material and battery Takahisa Ishimatsu, Takashi Sato, Masumi TERAUCHI, Yoshikatsu Yamamoto 2012-06-12
7525437 Wireless signal receiver Daisuke Takeuchi, Shuji Terada 2009-04-28
7442469 Cathode active material and non-aqueous electrolyte secondary battery Takashi Sato, Takahisa Ishimatsu, Yoshikatsu Yamamoto 2008-10-28
7157188 Battery Akira Yamaguchi 2007-01-02
6679423 Electronic-money rewarding system for lost and found IC card Makoto Ijichi, Shigeyuki Itoh, Masaaki Hiroya, Hiroshi Asao, Naomi Sato 2004-01-20
6273334 Electronic-money rewarding system for lost and found IC card Makoto Ijichi, Shigeyuki Itoh, Masaaki Hiroya, Hiroshi Asao, Naomi Sato 2001-08-14
5932859 Electronic-money rewarding system for lost and found IC card Makoto Ijichi, Shigeyuki Itoh, Masaaki Hiroya, Hiroshi Asao, Naomi Sato 1999-08-03