Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5408011 | Poly(benzoic acid), method for the preparation thereof and method for the preparation of poly(p-phenylene) therefrom | Susumu Tanaka | 1995-04-18 |
| 5312874 | Poly(benxoic acid), method for the preparation thereof and method for the preparation of poly(p-phenylene) from poly(benzoic acid) | Susumu Tanaka | 1994-05-17 |
| 5264191 | Quaternary ammonium trihalide and method for dissolution of metal with liquid containing the compound | Yukimichi Nakao | 1993-11-23 |
| 5139752 | Method for extraction of gold and silver from ore with a solution containing a halogen, halogenated salt and organic solvent | Yukimichi Nakao | 1992-08-18 |
| 5120523 | Method for dissolution of metal | Yukimichi Nakao, Aizo Yamauchi | 1992-06-09 |
| 5110504 | Low frequency nonlinear electric material and method for generation of higher harmonic wave | Kohzo Ito, Yoshikazu Tanabe, Masa-aki Sato | 1992-05-05 |
| 4981886 | Method for production of colored macromolecular polymer | Yukimichi Nako, Aizo Yamauchi | 1991-01-01 |
| 4919716 | Method for dissolution of metal | Yukimichi Nakao, Aizo Yamauchi | 1990-04-24 |
| 4892678 | Thiophene derivative polymer and a polymer composition thereof | Susumu Tanaka, Masaaki Sato, Yoshio Suda, Takao Hiraide | 1990-01-09 |
| 4877852 | Thiophene derivative polymer and a polymer composition thereof | Susumu Tanaka, Masaaki Sato, Yoshio Suda, Takao Hiraide | 1989-10-31 |
| 4792645 | Process for producing electroconductive fibrous shaped-articles | Yukimichi Nakao, Yoshio Suda, Tomoyuki Imai, Osamu Oze, Nanao Horiishi | 1988-12-20 |
| 4737557 | 3-N-higher alkylthiophene polymer and composition thereof | Masaaki Sato, Susumu Tanaka, Yoshio Suda | 1988-04-12 |
| 4691005 | Thiophene derivative polymer, polymer composition, and methods for manufacture thereof | Masaaki Sato, Susumu Tanaka, Yoshio Suda | 1987-09-01 |