MH

Masayoshi Hayakawa

HI Hitachi: 4 patents #8,942 of 28,497Top 35%
TI Tokyo Electric Power Company Holdings, Incorporated: 2 patents #90 of 711Top 15%
Overall (All Time): #1,276,854 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
RE37244 Insulated type switching device Tooru Tanimizu, Fumio Shibata, Masato Kobayashi, Satoru Kajiwara, Masatoshi Morita +1 more 2001-06-26
6005213 Insulated type switchgear device Ayumu Morita, Takashi Sato, Youichi Ohshita, Tooru Tanimizu, Toshio Horikoshi +1 more 1999-12-21
5952636 Vacuum type switch gear device having L shaped stationary and movable conductors arrangement Ayumu Morita, Takashi Sato, Youichi Ohshita, Tooru Tanimizu, Toshio Horikoshi +1 more 1999-09-14
5719365 Insulated type switching device Tooru Tanimizu, Fumio Shibata, Masato Kobayashi 1998-02-17