Issued Patents All Time
Showing 1–25 of 115 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7736435 | Method of producing single crystal | Yoshiaki Mokuno, Akiyoshi Chayahara, Yuji Horino | 2010-06-15 |
| 6428399 | Polishing apparatus for polishing a hard material-coated wafer | Keiichiro Tanabe, Akihoko Ikegaya, Yuichiro Seki | 2002-08-06 |
| 6270898 | Tool tip and bonding tool comprising the tool tip and control method for the bonding tool | Katsuko Yamamoto, Takahisa Iguchi, Yoshiaki Kumazawa, Katsuyuki Tanaka, Hiromu Shiomi +1 more | 2001-08-07 |
| 6193585 | Method of polishing a hard material-coated wafer | Keiichiro Tanabe, Akihoko Ikegaya, Yuichiro Seki | 2001-02-27 |
| 6162412 | Chemical vapor deposition method of high quality diamond | Akihiko Ikegaya, Takahiro Imai, Nobuhiro Ota, Takayuki Shibata | 2000-12-19 |
| 6051063 | Diamond wafer and method of producing a diamond wafer | Keiichiro Tanabe, Yuichiro Seki, Akihiko Ikegaya, Hideaki Nakahata, Shin-ichi Shikata | 2000-04-18 |
| 6028020 | Single crystal quartz thin film and preparation thereof | Motoyuki Tanaka, Takahiro Imai | 2000-02-22 |
| 5964942 | Wafer and method of producing same | Keiichiro Tanabe, Yuichiro Seki, Akihiko Ikegaya, Takashi Tsuno | 1999-10-12 |
| 5939140 | Hot filament CVD of diamond films | Masataka Oji | 1999-08-17 |
| 5910662 | Semiconductor substrate having a superconducting thin film | Hideo Itozaki, Keizo Harada, Shuji Yazu, Tetsuji Jodai | 1999-06-08 |
| 5879811 | Oxide thin film having quartz crystal structure | Motoyuki Tanaka, Takahiro Imai | 1999-03-09 |
| 5878110 | X-ray generation apparatus | Yoshiyuki Yamamoto, Keiichiro Tanabe, Nobuhiro Ota | 1999-03-02 |
| 5874130 | Wafer and method of producing a wafer | Keiichiro Tanabe, Yuichiro Seki | 1999-02-23 |
| 5861135 | Highly crystalline diamond | Keiichiro Tanabe | 1999-01-19 |
| 5855998 | Hard material-coated wafer, method of making same, polishing apparatus and polishing method of hard material-coated wafer | Keiichiro Tanabe, Akihoko Ikegaya, Yuichiro Seki | 1999-01-05 |
| 5791045 | Process for the production of a diamond heat sink | Yoshiyuki Yamamoto, Takashi Tsuno, Takahiro Imai | 1998-08-11 |
| 5788766 | Window and preparation thereof | Yoshiyuki Yamamoto, Keiichiro Tanabe, Katsuko Harano, Takashi Tsuno, Nobuhiro Ota | 1998-08-04 |
| 5785754 | Substrate, semiconductor device, element-mounted device and preparation of substrate | Yoshiyuki Yamamoto, Keiichiro Tanabe, Katsuko Harano, Nobuhiro Ota | 1998-07-28 |
| 5776552 | Process for the vapor phase synthesis of diamond and highly crystalline diamond | Keiichiro Tanabe | 1998-07-07 |
| 5776246 | Diamond wafer and method of producing a diamond wafer | Keiichiro Tanabe, Yuichiro Seki, Akihiko Ikegaya, Hideaki Nakahata, Shin-ichi Shikata | 1998-07-07 |
| 5766783 | Boron-aluminum nitride coating and method of producing same | Yoshiharu Utsumi, Takahiro Imai | 1998-06-16 |
| 5759667 | Diamond wire drawing die and process for manufacturing same | Toshiya Takahashi, Akihiko Ikegaya, Keiichiro Tanabe | 1998-06-02 |
| 5736226 | Wafer and method of producing a wafer | Keiichiro Tanabe, Yuichiro Seki | 1998-04-07 |
| 5682063 | Substrate for semiconductor device | Yoshiyuki Yamamoto, Takahiro Imai | 1997-10-28 |
| 5677372 | Diamond reinforced composite material | Yoshiyuki Yamamoto, Takahiro Imai, Takashi Tsuno | 1997-10-14 |