TH

Tadashi Hirakawa

MM Mitsubishi Mining: 20 patents #10 of 2,247Top 1%
TL Teijin Limited: 11 patents #77 of 1,631Top 5%
Honda Motor Co.: 4 patents #5,328 of 21,052Top 30%
AE Amkor Electronics: 3 patents #4 of 35Top 15%
AC Ajinomoto Co.: 1 patents #1,164 of 2,190Top 55%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #82,781 of 4,157,543Top 2%
39
Patents All Time

Issued Patents All Time

Showing 26–39 of 39 patents

Patent #TitleCo-InventorsDate
4582747 Dust-proof fabric Mamoru Tsumoto 1986-04-15
4529481 Synthetic polyester pulp and process for preparing same Makoto Yoshida 1985-07-16
4501641 Process for producing paper or non-woven fabric Makoto Yoshida 1985-02-26
4496583 Paper-like polyester fiber sheet and process for producing the same Tamio Yamamoto, Tsukasa Kobayashi, Makoto Yoshida, Masumi Okumura 1985-01-29
4481066 Single facer Hiroaki Sasashige 1984-11-06
4471515 Rolls for single facer Hiroyuki Takenaka, Keiichi Katayama, Kouichi Tokiyasu 1984-09-18
4460135 Mill roll stand Hiroshi Sato 1984-07-17
4420999 Rotary plate-shape material cutting arrangement Toshiaki Kusubayashi, Yukio Oku 1983-12-20
4398328 Rolls for single facer Hiroyuki Takenaka, Keiichi Katayama, Kouichi Tokiyasu, Hiroaki Sasashige 1983-08-16
4337884 Single facer Hiroaki Sasashige, Hiroyuki Takenaka, Keiichi Katayama 1982-07-06
4327854 Apparatus for guiding web-like material Hiroshi Satou 1982-05-04
4316761 Single facer Hiroaki Sasashige, Hiroyuki Takenaka, Keiichi Katayama 1982-02-23
4238024 Conveyor device Kiyomitsu Yoshikawa, Toshiaki Kusubayashi 1980-12-09
4225642 Raised and fused fabric filter and process for producing the same 1980-09-30