Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12157796 | Method for producing decolored polyester, decolored polyester, and decoloring agent | Masaki Takao, Toru Sakai, Hiroshi Fujita | 2024-12-03 |
| 7306738 | Method of deionizing solution yielded by polyester decomposition with ethylene glycol | Kikuchi Sato | 2007-12-11 |
| 7235622 | Polyethylene terephthalate for molding and production the same | Kikuchi Sato | 2007-06-26 |
| 7211193 | Processes for the purification of bis(2-hydroxyethyl)terephthalate | Kikuchi Sato | 2007-05-01 |
| 7193104 | Bis-β-hydroxyethyl terephthalate production process and purification process | Kikuchi Sato | 2007-03-20 |
| 7030264 | Bis-β-hydroxyethyl terephthalate | Kikuchi Sato | 2006-04-18 |
| 6710202 | Process for production of high-purity bis-&bgr;-hydroxyethyl terephthalate | Kikuchi Sato | 2004-03-23 |
| 6645445 | Process for removing titanium oxide or red oxide from ethylene glycol | Kikuchi Sato | 2003-11-11 |
| 6630601 | Methods for the preparation or purification of bis-&bgr;-hydroxyethyl terephthalate | Kikuchi Sato | 2003-10-07 |
| 6350851 | Method of polymerizing deionized bis-&bgr;-hydroxyethyl terephthalate | Kikuchi Sato | 2002-02-26 |
| 5311169 | Method and apparatus for driving capacitive display device | Ikuo Ogawa, Toshihiro Ohba, Hiroshi Kishishita, Hisashi Uede | 1994-05-10 |
| 4999618 | Driving method of thin film EL display unit and driving circuit thereof | Toshihiro Ohba, Hiroshi Kishishita, Hisashi Uede | 1991-03-12 |
| 4951041 | Driving method for thin film el display device and driving circuit thereof | Toshihiro Ohba, Hiroshi Kishishita, Hisashi Uede | 1990-08-21 |