Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5592647 | PTC panel heater with small rush current characteristic and highly heat insulating region corresponding to heater location to prevent local overheating | Masahiro Yamauchi, Takashi Kaimoto, Katsutoshi Rikihisa, Hironori Yoshida, Kenji Watanabe | 1997-01-07 |
| 5432016 | Magnetic head slider material | Toshiaki Wada, Seiichi Hirao, Toyoshige Sasaki, Masaharu Shiroyama | 1995-07-11 |
| 5302560 | Process for the production of magnetic head sliders | Toshiaki Wada, Yoshiaki Katsuyama, Takashi Kitahira, Michito Miyahara, Kiyohito Misumi +1 more | 1994-04-12 |
| 5093290 | Silicon nitride type sintered bodies and method for producing the same | Masaharu Shiroyama, Mitsuyoshi Nagano, Yasumi Takano | 1992-03-03 |
| 4902651 | Material for magnetic head substrate member | Toshiaki Wada, Masaharu Shiroyama, Mitsuyoshi Nagano, Michito Miyahara, Takashi Kitahira +1 more | 1990-02-20 |
| 4874725 | High-density sintered article of silicon carbid | Takashi Kitahira, Sakae Tanaka, Kiyohito Misumi | 1989-10-17 |
| 4859638 | Magnetic head sliders, materials therefor, and the process for the production thereof | Toshiaki Wada, Yoshiaki Katsuyama, Takashi Kitahira, Michito Miyahara, Kiyohito Misumi +1 more | 1989-08-22 |
| 4814915 | Magnetic head slider and material therefor | Toshiaki Wada, Masaharu Shiroyama, Michito Miyahara, Shigeki Mohri, Mitsuyoshi Nagano | 1989-03-21 |
| 4796127 | Recording head slider | Toshiaki Wada, Masaharu Shiroyama, Michito Miyahara, Mitsuyoshi Nagano, Shigeki Mohri | 1989-01-03 |
| 4598052 | Alumina base substrate of recording head and process for the production thereof | Toshiaki Wada, Mitsuyoshi Nagano, Michito Miyahara, Shigeki Mori | 1986-07-01 |
| 4582812 | Aluminum oxide substrate material for magnetic head and method for producing the same | Michito Miyahara, Takashi Kitahira, Kiyohito Misumi, Masaharu Shiroyama, Toshiaki Wada | 1986-04-15 |
| 4430279 | Process for producing zirconia yttria grinding media used for grinding magnetic coating powder | Takehiko Hagio, Michito Miyahara | 1984-02-07 |
| 4430440 | Magnetic head slider material | Toshiaki Wada, Michito Miyahara, Masaharu Shiroyama, Kiyohito Misumi, Takashi Kitahira | 1984-02-07 |
| 4356272 | Sintered bodies Al.sub.2 O.sub.3 -TiC-TiO.sub.2 continuing yttrium (y) | Yutaka Kanemitsu, Takehiko Hagio, Michito Miyahara, Yoshimichi Hara, Takashi Kitahira | 1982-10-26 |
| 4249914 | Cutting tool material and method for producing cutting tool material | Kazuki Ogawa, Yoshimichi Hara, Takashi Kitahira | 1981-02-10 |