KK

Kazumi Kawamoto

HI Hitachi: 17 patents #2,231 of 28,497Top 8%
OJ Opnext Japan: 12 patents #3 of 185Top 2%
Overall (All Time): #125,977 of 4,157,543Top 4%
30
Patents All Time

Issued Patents All Time

Showing 26–30 of 30 patents

Patent #TitleCo-InventorsDate
5191624 Optical information storing apparatus and method for production of optical deflector Kenchi Ito, Naoya Kanda, Yasuo Hira, Hidemi Sato, Atsuko Fukushima +3 more 1993-03-02
5187756 Surface acoustic waveguide device and manufacturing method Masataka Shiba, Akira Inagaki, Minoru Yoshida, Kenchi Ito 1993-02-16
5125740 Method and apparatus for measuring optical constants of a thin film as well as method and apparatus for fabricating a thin film utilizing same Hidemi Sato, Yasuo Hira, Atsuko Fukushima, Hiroshi Asao, Kenchi Ito +1 more 1992-06-30
5070488 Optical integrated circuit and optical apparatus Atsuko Fukushima, Yasuo Hira, Hidemi Sato, Kenchi Ito, Masataka Shiba +1 more 1991-12-03
4906063 Wave guide type optical device and method of fabricating the same Hidemi Sato, Yasuo Hira, Shigeru Sasaki, Atsuko Fukusima 1990-03-06