Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8552138 | Polyester resin, production process therefor and use thereof | Shinichi Usugi, Ryohei Ogawa, Akifumi Kagayama | 2013-10-08 |
| RE40571 | Catalyst for polyester production, process for producing polyester using the catalyst, polyester obtained by the process, and uses of the polyester | Takeshi Ohmatsuzawa, Fujito Ehara, Kazuo Toyota, Kenzaburou Fukutani, Junichi Imuta +8 more | 2008-11-11 |
| 7300998 | Polyester resin and catalyst for polyester production, process for producing polyester resin with the catalyst, polyester resin obtained with the catalyst, and hollow molded container comprising the polyester resins | Fujito Ehara, Shouji Hiraoka, Ken Maeda, Tomohiro Suzuki, Nobumasa Mukai | 2007-11-27 |
| 6649731 | Catalysts for polyester production, process for producing polyester, and polyester | Fujito Ehara, Akiyoshi Shimizu, Nobumasa Mukai, Shoji Hiraoka | 2003-11-18 |
| 6451959 | Catalyst for polyester production, process for producing polyester using the catalyst, polyester obtained by the process, and uses of the polyester | Takeshi Ohmatsuzawa, Fujito Ehara, Kazuo Toyota, Kenzaburou Fukutani, Junichi Imuta +8 more | 2002-09-17 |
| 6346070 | Catalyst for polyester production, process for producing polyester using the catalyst, polyester obtained by the process, and uses of the polyester | Takeshi Ohmatsuzawa, Fujito Ehara, Kazuo Toyota, Kenzaburou Fukutani, Junichi Imuta +8 more | 2002-02-12 |