Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5225296 | Electrode and method of producing the same | Toshiyuki Ohsawa, Toshiyuki Kabata, Tutomu Sakaida, Keiichi Asami | 1993-07-06 |
| 5108862 | Composite carrier particles for electrophotography and process for producing the same | Souichiro Kishimoto, Tsutomu Sakaida, Keiichi Asami, Tetsuro Toda, Kazuo Fujioka +3 more | 1992-04-28 |
| 4942192 | Rubber compositions for tires | Takuo Yasuda, Hitoshi Kondo, Tsuneyuki Ohsawa, Yoshiaki Maekawa | 1990-07-17 |
| 4839445 | Spherical particles of thermosetting phenolic resin and process for producing the same | Kenichi Sugawara, Mutsunori Yamao, Yoshiyuki Suematu, Keiichi Asami, Tuneyuki Ohsawa | 1989-06-13 |
| 4808316 | Process for treating waste water containing uranium and fluorine | Keiichiro Otomura, Yoshikazu Ogura, Mutsunori Yamao, Tadashi Ishikura | 1989-02-28 |
| 4778695 | Production of microspheroidal particles of resole resins | Mutsunori Yamao, Yoshiyuki Suematu, Tadashi Ishikura, Keiichi Asami, Ritsuko Shidei | 1988-10-18 |
| 4769180 | Process for separately recovering uranium and hydrofluoric acid from waste liquor containing uranium and fluorine | Hirotaka Amimoto, Mutsunori Yamao, Tadashi Ishikura, Keiichiro Otomura, Sakae Fujisaki +1 more | 1988-09-06 |
| 4748214 | Microspherical cured phenolic resin particles and process for production thereof using emulsion stabilizers | Keiichi Asami, Mutsunori Yamao, Yoshiyuki Suematu, Tadashi Ishikura, Ritsuko Shidei | 1988-05-31 |
| 4640971 | Microspherical particles of resole resins and process for producing the same | Mutsunori Yamao, Yoshiyuki Suematu, Tadashi Ishikura, Keiichi Asami, Ritsuko Shidei | 1987-02-03 |
| 4576969 | Spherical ion exchange resin having matrix-bound metal hydroxide, method for producing the same and method for adsorption treatment using the same | Yoshiyuki Suematsu, Tadashi Ishikura | 1986-03-18 |
| 4559216 | Method for purification of sulfuric acid solution | Tadao Nagai | 1985-12-17 |
| 4414183 | Phenolic chelate resin, process for producing the same, and method of recovering heavy metal ions with the same | Akio Sasaki | 1983-11-08 |
| 4383104 | Phenolic chelate resin, process for producing the same, and method of recovering heavy metal ions with the same | Akio Sasaki | 1983-05-10 |