MS

Masaharu Shiroyama

NC Nippon Tungsten Co.: 11 patents #3 of 139Top 3%
SC Sumitomo Special Metals Co.: 9 patents #18 of 262Top 7%
Overall (All Time): #474,287 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
5432016 Magnetic head slider material Toshiaki Wada, Seiichi Hirao, Toyoshige Sasaki, Mitsuhiko Furukawa 1995-07-11
5302560 Process for the production of magnetic head sliders Toshiaki Wada, Yoshiaki Katsuyama, Mitsuhiko Furukawa, Takashi Kitahira, Michito Miyahara +1 more 1994-04-12
5093290 Silicon nitride type sintered bodies and method for producing the same Mitsuhiko Furukawa, Mitsuyoshi Nagano, Yasumi Takano 1992-03-03
4902651 Material for magnetic head substrate member Toshiaki Wada, Mitsuhiko Furukawa, Mitsuyoshi Nagano, Michito Miyahara, Takashi Kitahira +1 more 1990-02-20
4859638 Magnetic head sliders, materials therefor, and the process for the production thereof Toshiaki Wada, Yoshiaki Katsuyama, Mitsuhiko Furukawa, Takashi Kitahira, Michito Miyahara +1 more 1989-08-22
4814915 Magnetic head slider and material therefor Toshiaki Wada, Mitsuhiko Furukawa, Michito Miyahara, Shigeki Mohri, Mitsuyoshi Nagano 1989-03-21
4796127 Recording head slider Toshiaki Wada, Mitsuhiko Furukawa, Michito Miyahara, Mitsuyoshi Nagano, Shigeki Mohri 1989-01-03
4582812 Aluminum oxide substrate material for magnetic head and method for producing the same Mitsuhiko Furukawa, Michito Miyahara, Takashi Kitahira, Kiyohito Misumi, Toshiaki Wada 1986-04-15
4478871 Method for hardfacing a ferrous base material Shigeya Sakaguchi, Hiroshi Ito 1984-10-23
4438213 Magnetic head slider material and method for producing the same Mitsuhiki Furukawa, Michito Miyahara, Takashi Kitahira, Kiyohito Misumi, Toshiaki Wada 1984-03-20
4430440 Magnetic head slider material Toshiaki Wada, Mitsuhiko Furukawa, Michito Miyahara, Kiyohito Misumi, Takashi Kitahira 1984-02-07