Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648027 | Porous carbonaceous material and a method for producing the same | Hiroyuki Tajiri, Yoshiteru Nakagawa, Yoshiaki Iwaya, Yoshiharu Tanaka, Katsuyuki Touma +1 more | 1997-07-15 |
| 5489492 | Composite sheet electrode | Hideki Takahashi, Katsuo Inoue, Yoshiaki Echigo, Toshiyuki Ohsawa, Toshiyuki Kabata +1 more | 1996-02-06 |
| 5348818 | Carbonaceous material and a cell using the same | Hideki Takahashi, Katsuo Inoue, Yoshiaki Echigo, Toshiyuki Ohsawa, Toshiyuki Kabata | 1994-09-20 |
| 5225296 | Electrode and method of producing the same | Toshiyuki Ohsawa, Toshiyuki Kabata, Yoshiaki Echigo, Tutomu Sakaida | 1993-07-06 |
| 5108862 | Composite carrier particles for electrophotography and process for producing the same | Souichiro Kishimoto, Tsutomu Sakaida, Yoshiaki Echigo, Tetsuro Toda, Kazuo Fujioka +3 more | 1992-04-28 |
| 4839445 | Spherical particles of thermosetting phenolic resin and process for producing the same | Yoshiaki Echigo, Kenichi Sugawara, Mutsunori Yamao, Yoshiyuki Suematu, Tuneyuki Ohsawa | 1989-06-13 |
| 4778695 | Production of microspheroidal particles of resole resins | Yoshiaki Echigo, Mutsunori Yamao, Yoshiyuki Suematu, Tadashi Ishikura, Ritsuko Shidei | 1988-10-18 |
| 4748214 | Microspherical cured phenolic resin particles and process for production thereof using emulsion stabilizers | Yoshiaki Echigo, Mutsunori Yamao, Yoshiyuki Suematu, Tadashi Ishikura, Ritsuko Shidei | 1988-05-31 |
| 4640971 | Microspherical particles of resole resins and process for producing the same | Yoshiaki Echigo, Mutsunori Yamao, Yoshiyuki Suematu, Tadashi Ishikura, Ritsuko Shidei | 1987-02-03 |