Toshiaki Hayashi

TK Tyco Electronics Amp K.K.: 16 patents #5 of 151Top 4%

TO Toyota: 16 patents #1,599 of 26,838Top 6%

Fujitsu Limited: 11 patents #2,845 of 24,456Top 15%

AC Aisin Aw Co.: 9 patents #199 of 2,011Top 10%

SC Sumitomo Chemical: 9 patents #537 of 4,033Top 15%

CW Coato Workshop: 6 patents #1 of 11Top 10%

Nissan Motor Co.: 4 patents #1,803 of 8,689Top 25%

TG Tyco Electronics Japan G.K.: 4 patents #40 of 248Top 20%

JC Japan Storage Battery Co.: 4 patents #17 of 170Top 10%

FU Fujifilm: 3 patents #1,989 of 4,519Top 45%

Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%

KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%

DC Daifuku Co.: 1 patents #230 of 509Top 50%

JT Japan Science And Technology: 1 patents #225 of 836Top 30%

AI Aisin: 1 patents #310 of 1,000Top 35%

OL Olympus: 1 patents #2,078 of 3,097Top 70%

TK Toyo Boseki Kabushiki Kaisha: 1 patents #541 of 1,085Top 50%

Overall (All Time): #24,249 of 4,157,543Top 1%

Patents All Time

Issued Patents All Time

Showing 76–77 of 77 patents

Patent #	Title	Co-Inventors	Date
5128218	Sealed lead-acid battery	Akio Tokunaga, Teruhiro Hatanaka, Masahiko Kosai, Takao Omae	1992-07-07
5035966	Sealed lead-acid battery	Akio Tokunaga	1991-07-30