KW

Katsuya Watanabe

Sumitomo Electric Industries: 4 patents #212 of 4,178Top 6%
CC Cosmo Oil Co.: 1 patents #2 of 17Top 15%
HI Hitachi: 1 patents #1,316 of 3,771Top 35%
NI Nikon: 1 patents #72 of 275Top 30%
PC Petroleum Energy Center: 1 patents #1 of 12Top 9%
Overall (2004): #3,857 of 270,089Top 2%
7
Patents 2004

Issued Patents 2004

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6834030 Optical disk apparatus Takashi Kishimoto, Takeharu Yamamoto, Kenji Fujiune 2004-12-21
6793833 Etching method of organic insulating film Michinobu Mizumura, Ryooji Fukuyama, Yutaka Ohmoto 2004-09-21
6737380 Solid acid catalyst, production method thereof, and method for hydrodesulfurizing and isomerizing light hydrocarbon oil using the same Takahito Kawakami, Koji Baba, Takao Kimura 2004-05-18
6721239 Optical disc device Takashi Kishimoto, Yuu Okada 2004-04-13
6714493 Optical disk apparatus Takashi Kishimoto, Takeharu Yamamoto, Kenji Fujiune 2004-03-30
6700710 Liquid immersion type microscope objective lens 2004-03-02
6680887 Optical disk apparatus and PLL circuit Tetsuya Shihara, Takashi Narutani 2004-01-20