Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10774190 | Ion-conducting membrane production method and production device | Yuko Yabuuchi | 2020-09-15 |
| 9114501 | Polishing pad | Nana Takeuchi, Ryoji Okuda, Shigetaka Kasai | 2015-08-25 |
| 8314192 | Interpenetrating polymer network structure and polishing pad, and process for producing the same | Norikazu Tabata, Kazuhiko Hashisaka, Masahiro Sugimura, Takuo Sakamoto, Masaki Ue +1 more | 2012-11-20 |
| 7551642 | Digital modulating and demodulating device which is compatible with both PDH and SDH signals by dividing input signal in multiple directions and combining input signals from multiple directions with matrix switching unit | Yoshio Ito | 2009-06-23 |
| 6326454 | Composition comprising condensation product of dimer of 2,3-dihydroxynaphthalene and formaldehyde for polymerization | Toshihide Shimizu, Tatsuya FUJIMOTO | 2001-12-04 |
| 6121390 | Process of producing vinyl chloride polymer by using condensation product of dimer of 2,3-dihydroxynaphthalene and formaldehyde | Toshihide Shimizu, Tatsuya FUJIMOTO | 2000-09-19 |
| 5749720 | Gas heating apparatus with dual burners | Sunao Nakamura, Yotaro Ohno | 1998-05-12 |
| 5644670 | Broad bandwidth optical fibers, jacketed optical fibers and optical fiber cords | Hisaaki Kobayashi, Shoshiro Taneichi, Tetsuya Yamamoto | 1997-07-01 |
| 5545988 | Waveform signal processor with selective sampling | Masanori Sakai, Katsuhiko Tomita, Joichiro Ezaki, Kazuo Suzuki, Kouichi Hatakeyama | 1996-08-13 |
| 5481547 | SDH radio communication system and transmitter/receiver equipment therefor | Katsuhiro Sasaki, Yuka Kuroda | 1996-01-02 |
| 5220451 | Second-order nonlinear optical device | Tetsuya Gotoh, Tetsuya Tsunekawa, Hiroshi Mataki, Keiichi Egawa | 1993-06-15 |
| 4876686 | Fault detection signal transmission system | Katsuhiro Sasaki | 1989-10-24 |
| 4862692 | Supercritical pressure once-through boiler | — | 1989-09-05 |