TF

Tatsuo Fujiwara

Fujitsu Limited: 13 patents #2,362 of 24,456Top 10%
SO Sony: 11 patents #4,043 of 25,231Top 20%
NC Nippon Air Brake Co.: 4 patents #14 of 107Top 15%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
DT Daido Tokushuko: 2 patents #76 of 382Top 20%
TO Toshiba: 2 patents #606 of 2,688Top 25%
TC Toyo Seikan Co.: 1 patents #498 of 888Top 60%
DI Daikin Industries: 1 patents #1,764 of 2,957Top 60%
Overall (All Time): #97,418 of 4,157,543Top 3%
35
Patents All Time

Issued Patents All Time

Showing 26–35 of 35 patents

Patent #TitleCo-InventorsDate
4885693 Wheel-slip detection system Asaji Imanaka, Shuichi Osaka 1989-12-05
4763261 Wheel-speed detecting arrangement Asaji Imanaka, Shuichi Osaka 1988-08-09
4752909 Sequence controller Ryouichi Abe, Naohiro Kurokawa 1988-06-21
4719536 Wheel-slip detection system Asaji Imanaka, Shuichi Osaka 1988-01-12
4631514 Malfunction detection arrangement for jerk controlled brake command system 1986-12-23
4410603 Magnetic recording medium Kazuyoshi Yamamori, Reiji Nishikawa, Toshimitsu Asano 1983-10-18
4390907 Magnetic recording system 1983-06-28
4270950 Machinable ferrite stainless steels Shozo Abeyama, Kiyohito Ishida, Sadayuki Nakamura 1981-06-02
4260356 Plastic dispensing apparatus Masayasu Watanabe, Mikio Yabumoyo, Takaaki Kanemori, Hiroshi Seo 1981-04-07
4219356 Machinable ferritic stainless steels Shozo Abeyama, Kiyohito Ishida, Sadayuki Nakamura 1980-08-26