Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6576692 | Epoxidized block copolymer, its production, and its composition | Yoshihiro Ohtsuka, Masaki Tanaka | 2003-06-10 |
| 5959062 | Polymer alloy and a composition therefrom | Yoshihiro Ohtsuka | 1999-09-28 |
| 5925695 | Curable composition, a cured article therefrom, an asphalt emulsion, an asphalt mixture for paving, and a cured article therefrom | Yoshihiro Ohtsuka | 1999-07-20 |
| 5840809 | Epoxidized block copolymer, its production, and its composition | Yoshihiro Ohtsuka, Masaki Tanaka | 1998-11-24 |
| 5684115 | (Co)polycarbonate composition containing boric acid and a basic catalyst | Tatsuya Kanno, Yutaka Hukuda | 1997-11-04 |
| 5663278 | (Co)polycarbonate and process for producing the same | Tatsuya Kanno, Yutaka Hukuda | 1997-09-02 |
| 5658978 | (Co)polycarbonate and borate composition | Tatsuya Kanno, Yutaka Hukuda | 1997-08-19 |
| 5610262 | Process for producing polycarbonate | Tsutomu Yamato, Yutaka Fukuda, Tatsuya Kanno, Takaaki Kuwana | 1997-03-11 |
| 5548041 | Process for producing polycarbonate | Tsutomu Yamato, Yutaka Fukuda, Tatsuya Kanno, Takaaki Kuwana, Yoshimichi Okano | 1996-08-20 |
| 5498688 | Two-step process for the preparation of a (co)polycarbonate by transesterification | Tatsuya Kanno | 1996-03-12 |
| 5494992 | (Co)polycarbonate and process for producing the same | Tatsuya Kanno, Yutaka Hukuda | 1996-02-27 |
| 5489665 | Process for producing polycarbonate | Tsutomu Yamato, Yutaka Fukuda, Tatsuya Kanno, Takaaki Kuwana, Yoshimichi Okano | 1996-02-06 |
| 5468836 | Process for the preparation of polycarbonate | Yoshimichi Okano, Tatsuya Kanno, Tsutomu Yamato, Michiyo Tanigawa, Takaaki Kuwana +1 more | 1995-11-21 |
| 5466774 | (Co) Polycarbonate and process for producing the same | Tatsuya Kanno, Yutaka Hukuda | 1995-11-14 |
| 5434227 | Process for producing polycarbonate | Tsutomu Yamato, Yutaka Fukuda, Tatsuya Kanno, Takaaki Kuwana, Yoshimichi Okano | 1995-07-18 |
| 5432250 | Process for producing polycarbonate | Tsutomu Yamato, Yutaka Fukuda, Tatsuya Kanno, Takaaki Kuwana | 1995-07-11 |
| 5418314 | Process for producing polycarbonate | Tsutomu Yamamoto, Yutaka Fukuda, Tatsuya Kanno, Takaaki Kuwana | 1995-05-23 |
| 5416186 | Process for the preparation of (co)polycarbonate | Tatsuya Kanno | 1995-05-16 |
| 5405934 | Process for producing (co)polycarbonate | Tatsuya Kanno | 1995-04-11 |
| 5391690 | Process for producing (co)polycarbonate and (co)polycarbonate composition | Tatsuya Kanno, Tsutomu Yamato, Yutaka Fukuda, Yoshihiro Iguchi, Takaaki Kuwana +1 more | 1995-02-21 |
| 5387628 | Process for producing (co)polycarbonate and (co)polycarbonate composition | Tatsuya Kanno, Tsutomu Yamato, Yutaka Fukuda, Yoshihiro Iguchi, Takaaki Kuwana +1 more | 1995-02-07 |
| 5278279 | Process for producing (co)polycarbonate with transesterification catalyst and compound | Tatsuya Kanno, Tsutomu Yamato, Yutaka Fukuda, Yoshihiro Iguchi, Takaaki Kuwana +1 more | 1994-01-11 |
| 5168112 | Process for the preparation of a polycarbonate with piperidinyl pyridine catalyst | Mitsuru Ueda, Tatsuya Kanno, Yoshihiro Iguchi | 1992-12-01 |
| 5025083 | Process for preparation of polycarbonate | Mitsuru Ueda, Tatsuya Kanno, Yoshihiro Iguchi | 1991-06-18 |