TY

Tamotsu Yamamoto

Sumitomo Electric Industries: 36 patents #330 of 21,551Top 2%
PA Panasonic: 20 patents #998 of 21,108Top 5%
Fujitsu Limited: 18 patents #1,600 of 24,456Top 7%
OT Otics: 3 patents #22 of 78Top 30%
IK Ikegai Tekko Kabushiki Kaisha: 2 patents #1 of 8Top 15%
NC Nippon Zeon Co.: 1 patents #307 of 609Top 55%
FC Fuji Tekko Co.: 1 patents #7 of 15Top 50%
📍 Kawasaki, CA: #9 of 98 inventorsTop 10%
Overall (All Time): #22,236 of 4,157,543Top 1%
81
Patents All Time

Issued Patents All Time

Showing 76–81 of 81 patents

Patent #TitleCo-InventorsDate
5316862 Magnetic recording medium, comprising magnetic powder and a sulfoxide group containing vinyl chloride copolymer binder resin Kenji Akimoto 1994-05-31
5086221 Rotary encoder having stationary central support shaft Yukihiro Ishihara, Hiroshi Matsui 1992-02-04
5070238 Rotary encoder having circular magnet Yukihiro Ishihara, Hiroshi Matsui 1991-12-03
4745825 Transfer system to selectively perform the two-wheeled and four-wheeled driving operations for use in automobiles 1988-05-24
4569115 Method and apparatus for controlling the depth of cut in the radial direction of a rotary cutting tool in a machine tool Keizo Unno, Hitoshi Shimizu 1986-02-11
4195250 Automatic measuring and tool position compensating system for a numerically controlled machine tool 1980-03-25