YT

Yoshio Takikawa

HI Hitachi: 4 patents #8,942 of 28,497Top 35%
HC Hitachi Chemical Company: 3 patents #513 of 1,946Top 30%
Overall (All Time): #1,304,467 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4748363 Current-collecting brush apparatus Takashi Watanabe, Masao Ohi, Koji Tanaka, Yasuto Kondoh, Satoshi Oouchi 1988-05-31
4409508 Brush holder with coated clamp for dynamo-electric machine Norihiro Ooki, Noriyoshi Takahashi, Yasuyuki Wachi, Norio Yamakawa, Shoji Motegi 1983-10-11
4355254 Brush holding device for electric rotary machine Norihiro Oki, Shoji Motegi, Yasuyuki Wachi, Norio Yamakawa 1982-10-19
4296346 Brush holding apparatus for rotary electric machine Norihiro Ooki, Shoji Motegi, Yasuyuki Wachi, Norio Yamakawa 1981-10-20