Issued Patents All Time
Showing 26–50 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6252038 | Method for selectively separating hydrocarbons | Akira Shimazu, Tomoko Matsushita, Tsukasa Miyazaki | 2001-06-26 |
| 6240244 | Disk apparatus having a single recording head and capable of simultaneous recording and reproducing | — | 2001-05-29 |
| 6185038 | Rear projection screen with light diffusion sheet and projector using same | Hiroshi Yamaguchi | 2001-02-06 |
| 6177760 | Deflection yoke with a compensation coil having damping material composed of a silicon composition | Yusuke Okawa, Yoji Motomiya, Takasuke Koga, Naoki Hatakeyama, Keiji Morimoto +1 more | 2001-01-23 |
| 6177011 | Composite reverse osmosis membrane having a separation layer with polyvinyl alcohol coating and method of reverse osmotic treatment of water using the same | Hisao Hachisuka | 2001-01-23 |
| 6026968 | Reverse osmosis composite membrane | Hisao Hachisuka | 2000-02-22 |
| 5988507 | Bar code reader | Kazuo Ishii | 1999-11-23 |
| 5910357 | Separation membrane and method of producing the same, and shape memory polymer composition | Hisao Hachisuka, Yoshihiko Kondo, Hitoshi Takano, Amane Mochizuki | 1999-06-08 |
| 5903532 | Disk, recording device, reproducing device, recording method and reproducing method | — | 1999-05-11 |
| 5888605 | Polysulfone semipermeable membrane and method of manufacturing the same | Hisao Hachisuka | 1999-03-30 |
| 5882382 | Polyimide semipermeable membrane | Hisao Hachisuka | 1999-03-16 |
| 5859182 | Fluorine-containing polyquinazolone polymer and separation membrane using the same | Hisao Hachisuka | 1999-01-12 |
| 5855793 | Method of treating waste water to remove harmful ion by coagulating sedimentation | Yuichi Asai, Yuji Arai | 1999-01-05 |
| 5821320 | Method of producing the aromatic polyimide | Masatoshi Maeda | 1998-10-13 |
| 5817165 | Fluorine-containing polyimide gas separation membrane and method of manufacturing the same | Hisao Hachisuka, Masatoshi Maeda | 1998-10-06 |
| 5811196 | Laminated asymmetric membrane and method for manufacturing the same | Hisao Hachisuka | 1998-09-22 |
| 5750033 | Method of treating waste water to remove harmful ion by coagulating sedimentation | Yuichi Asai, Yuji Arai | 1998-05-12 |
| 5749943 | Method of selectively separating unsaturated hydrocarbon | Akira Shimazu, Hisao Hachisuka | 1998-05-12 |
| 5745453 | Disk, recording device, reproducing device, recording method and reproducing method including calculation, storage and utilization of parity information | — | 1998-04-28 |
| 5709733 | Gas separation method | Hisao Hachisuka, Kenichi Inoue | 1998-01-20 |
| 5674398 | Composite reverse osmosis membrane | Masahiko Hirose, Masatoshi Maeda | 1997-10-07 |
| 5647894 | Gas separating composite membrane and process for producing the same | Tomomi Ohara, Hisao Hachisuka, Ping Xu, Akira Shimazu | 1997-07-15 |
| 5576057 | Method of producing high permeable composite reverse osmosis membrane | Masahiko Hirose | 1996-11-19 |
| 5569740 | Deproteinized natural rubber latex and its production process | Yasuyuki Tanaka, Kazuhiko Shibata, Yuji Nishida, Masaharu Hayashi, Shinichi Nakade +2 more | 1996-10-29 |
| 5160619 | Composite reverse osmosis membrane and production thereof | Tomoo Yamaguchi | 1992-11-03 |