KO

Kosei Obata

AC Alps Electric Co.: 6 patents #306 of 2,177Top 15%
📍 Rifu, JP: #502 of 2,101 inventorsTop 25%
Overall (All Time): #894,327 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
4807091 Illuminating device for an electric part 1989-02-21
4778966 Device for displaying operation of knob Yasuo Takii, Minoru Oyama 1988-10-18
4705348 Optical switch Hiroshi Matsunaga, Ichiro Tokunaga, Yoji Shimojima 1987-11-10
4684210 Light transmission device Hiroshi Matsunaga, Yoji Shimojima, Ichiro Tokunaga 1987-08-04
4606223 Device for detecting rotating speed of thin shape motor Hiroshi Matsunaga, Yoji Shimojima, Ichiro Tokunaga, Yukihiko Yasuhara 1986-08-19
4580871 Rotary encoder Hiroshi Matsunaga, Yoji Shimojima, Ichiro Tokunaga 1986-04-08