Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7684700 | Loss-of-signal detecting device | Takashi Sekiguchi, Takao Sumiya, Yoshihiro Kaneda | 2010-03-23 |
| 6442136 | Traffic shaping device for ATM communication network | Koichi Sugama, Ryuji Kayama, Yukio Katayanagi, Toshikazu Yamakawa | 2002-08-27 |
| 5248318 | Lapping abrasive of alumina-zirconia system and method for producing the same | Masahiro Tamamaki, Takanobu Takahashi, Koji Tsuda | 1993-09-28 |
| 5190567 | Sintered aluminous abrasive grains and method of producing the same | Masahiro Tamamaki, Masaru Nozaki, Naruo Suzuki | 1993-03-02 |
| 5177040 | Fused zirconia refractory materials having high-temperature heat resistance and corrosion resistance and a method for producing the same | Masahiro Tamamaki, Koji Tsuda, Hiroyuki Yamashita | 1993-01-05 |