Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7013060 | Optical cross-connect device | Teruya Sugiyama, Mitsuteru Inoue, Dong-Hak Shin | 2006-03-14 |
| 6947626 | Optical cross-connect device | Teruya Sugiyama, Mitsuteru Inoue, Shin Dong-Hak | 2005-09-20 |
| 6475450 | Method of leaching zinc concentrate | Kaoru Saruta, Norihito Ishimori | 2002-11-05 |
| 5867370 | Plastic shield enclosure and method of producing the same | — | 1999-02-02 |
| 5568529 | Signal disconnection monitor apparatus and signal period detection apparatus therefor | — | 1996-10-22 |
| D353808 | Portable radio phone | Tetsuya Taniguchi, Minoru Hotsumi, Kozo Maemura | 1994-12-27 |
| 5335274 | Extendable telephone | Masataka Suzuki, Masataka Ohno, Kazuyoshi Kobayashi, Hiromitsu Nakamura | 1994-08-02 |
| 5252305 | Process of recovering platinum group metal | Nobuyasu Ezawa, Hiroshi Inoue, Shoei Takada | 1993-10-12 |
| 5196066 | Facing material spray apparatus | Motoo Kusuda, Hirokazu Ueda | 1993-03-23 |
| 4919624 | Connection terminal structure of electronic equipment | — | 1990-04-24 |
| 4827516 | Method of analyzing input speech and speech analysis apparatus therefor | Yusuke Tsukahara, Mikio Yamaguchi, Masao Tanabe | 1989-05-02 |
| 4614586 | Semipermeable polymeric film membrane | Koichi Takada, Yoshiro Nakata | 1986-09-30 |
| D281974 | Mobile radio transceiver | Masataka Suzuki | 1985-12-31 |
| 4517096 | Method of selective separation and concentration of gallium and/or indium from solutions containing low levels of them and high levels of other metal ions | Kunio Sekine, Kodo Ishibashi, Masahide Hirai, Shozo Tomoshige, Kozo Kondo | 1985-05-14 |