Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33779 | Preparation process of 4,4-dihydroxybiphenyl | Yutaka Konai, Tadashi Nakamura, Takayuki Tanonaka, Kazuo Yoshida | 1991-12-24 |
| 4960945 | Process for the production of halobenzophenone derivatives | Takashi Terauchi, Kazuo Yoshida, Nobuyuki Okubo, Yutaka Konai | 1990-10-02 |
| 4804788 | Preparation process of 4,4-dihydroxybiphenyl | Yutaka Konai, Tadashi Nakamura, Takayuki Tanonaka, Kazuo Yoshida | 1989-02-14 |