Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9567763 | Vibration damping wall structure and a method of connecting vibration damping devices | Kenji Miyazawa, Isao Okawa | 2017-02-14 |
| 9145701 | Earthquake resistant reinforcement apparatus, earthquake resistant building, and an earthquake resistant reinforcing method | Isao Okawa | 2015-09-29 |
| 6782614 | Contact pin assembly, contact pin assembly manufacturing method, contact pin assembling structure, contact pin assembling structure manufacturing method, and socket for electrical parts | Masami Fukunaga | 2004-08-31 |
| 6720783 | IC socket and spring means of IC socket | Tomoyoshi Yamaguchi | 2004-04-13 |
| 6575767 | Contact pin assembly, contact pin assembly manufacturing method, contact pin assembling structure, contact pin assembling structure manufacturing method, and socket for electrical parts | Masami Fukunaga | 2003-06-10 |
| 6512388 | IC socket and spring means of IC socket | Tomoyoshi Yamaguchi | 2003-01-28 |
| 6129900 | Process for the synthesis of diamond | Hitoshi Sumiya, Kazuwo Tsuji, Yasushi Gouda | 2000-10-10 |
| 6030595 | Process for the production of synthetic diamond | Hitoshi Sumiya, Yoshiki Nishibayashi | 2000-02-29 |
| 6007916 | Synthetic single crystal diamond for wiring drawing dies and process for producing the same | Kazuwo Tsuji, Akito Yoshida, Nobuo Urakawa | 1999-12-28 |
| 5912217 | Diamond sintered body and a process for the production of the same, tools and abrasive grains using the same | Hitoshi Sumiya, Takeru Nakashima, Yasuyuki Kanada | 1999-06-15 |
| 5908503 | Low defect density diamond single crystal and a process for the production of the same | Hitoshi Sumiya, Naohiro Toda | 1999-06-01 |
| 5769176 | Diamond sintered compact and a process for the production of the same | Hitoshi Sumiya | 1998-06-23 |
| 5560241 | Synthetic single crystal diamond for wire drawing dies | Kazuwo Tsuji, Akito Yoshida, Nobuo Urakawa | 1996-10-01 |
| 5245189 | Infrared optical element and method of making the same | Yasushi Goda, Kazuwo Tsuji | 1993-09-14 |
| 4985226 | Hole-burning material and production thereof | Kazuwo Tsuji, Takeru Nakashima, Shuji Yazu, Yosio Nisida, Kiyofumi Muro +3 more | 1991-01-15 |
| 4959201 | Green diamond and method of producing the same | Kazuwo Tsuji | 1990-09-25 |
| 4950463 | Purple diamond and method of producing the same | Kazuwo Tsuji | 1990-08-21 |
| 4950625 | Diamond laser crystal and method manufacturing the same | Takeru Nakashima, Kazuwo Tsuji | 1990-08-21 |
| 4949347 | Diamond laser, method for producing the same, and method for activating such a laser | Kazuwo Tsuji, Takeru Nakashima | 1990-08-14 |
| 4836881 | Process for synthesizing large diamond | Kazuwo Tsuji | 1989-06-06 |
| 4653594 | Vibration generating apparatus | Hiroshi Yamamoto, Yoshiyuki Iwai, Osamu Ae, Masao Suda, Minoru Shiozaki +6 more | 1987-03-31 |
| 4617181 | Synthetic diamond heat sink | Shuji Yazu | 1986-10-14 |
| 4576515 | Pipe laying apparatus | Keiji Morimoto, Yoshiyuki Iwai, Osamu Ae, Masao Suda, Kiyoshi Tsuchiya +2 more | 1986-03-18 |
| 4571122 | Pipe laying apparatus | Hiroshi Yamamoto, Yoshiyuki Iwai, Osamu Ae, Masao Suda, Minoru Shiozaki +6 more | 1986-02-18 |