Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7700064 | Carbon fiber | Hiroshi Sakurai, Tetsuo Ban, Masumi Hirata | 2010-04-20 |
| 7585930 | Method of decomposing a polycarbonate | Mai Kitahara, Masumi Hirata, Tetsuo Ban | 2009-09-08 |
| 7517832 | Fibrous active carbon and nonwoven fabric including the same | Hiroshi Sakurai, Mai Kitahara, Masumi Hirata | 2009-04-14 |
| 6670440 | Production process and production system of aromatic polycarbonate | Kyosuke Matsumoto, Masasi Simonaru, Katsushi Sasaki, Keiichi Kaneko | 2003-12-30 |
| 6613128 | Twin screw extruder, method of making aromatic polycarbonate using a twin screw extruder, and method of removing volatiles from an aromatic polycarbonate melt | Masasi Simonaru, Katsushi Sasaki, Kazuki Hatono, Eiji Ito | 2003-09-02 |
| 6605686 | Method for producing an aromatic polycarbonate and method of keeping raw materials thereof | Hidemi Takemoto, Keiichi Kaneko, Katsushi Sasaki | 2003-08-12 |
| 6562936 | Apparatus and method for producing resin | Kazuki Hatono, Masumi Hirata, Hiroaki Kaneko, Wataru Funakoshi, Katsushi Sasaki +2 more | 2003-05-13 |
| 6525171 | Process for producing a polycarbonate and method of cleaning a production unit | Hidemi Takemoto, Katsushi Sasaki, Keiichi Kaneko | 2003-02-25 |
| 6472496 | Process for production of aromatic polycarbonate resin and molded article of aromatic polycarbonate resin | Kyosuke Matsumoto, Masasi Simonaru, Katsushi Sasaki, Masahiro Murakami, Yoshiki Matsuoka | 2002-10-29 |
| 6471877 | Filter device for polycarbonate and production method for polycarbonate | Masahiro Murakami, Yoshiki Matsuoka, Katsushi Sasaki | 2002-10-29 |
| 6448365 | Aromatic polycarbonate composition | Wataru Funakoshi, Masumi Hirata, Hiroaki Kaneko, Yuichi Kageyama, Katsushi Sasaki | 2002-09-10 |
| 6407199 | Polycarbonate resin composition optical recording medium, and substrate therefor | Masumi Hirata, Wataru Funakoshi, Katsushi Sasaki, Jyuhou Matsuo | 2002-06-18 |
| 6380345 | Process for producing polycarbonates | Kazuhiro Uenishi, Masasi Simonaru, Katsushi Sasaki | 2002-04-30 |
| 6323302 | Carbonic acid diester, aromatic polycarbonate and facilities, and preparation thereof | Katsushi Sasaki, Wataru Funakoshi, Masumi Hirata, Hiroaki Kaneko, Masanori Abe +4 more | 2001-11-27 |
| 6265524 | Process for the preparation of aromatic polycarbonate | Hidemi Takemoto, Katsushi Sasaki | 2001-07-24 |
| 6252034 | Process for producing a polycarbonate resin | Kazuhiro Uenishi, Masashi Shimonaru, Katsushi Sasaki | 2001-06-26 |
| 6252036 | Process for producing polycarbonate resin | Kazuki Hatono, Hiroaki Kaneko, Katsushi Sasaki | 2001-06-26 |
| 5816697 | Viscous liquid stirring device and a process for producing polycarbonate by using the stirring device | Tomoaki Nogata, Masashi Shimonaru, Takeshi Muraoka | 1998-10-06 |
| 5091271 | Shaped silion carbide-eased ceramic article | Akio Nakaishi, Keizo Shimada, Takashi Watanabe | 1992-02-25 |
| 4948574 | Method of manufacturing of pitch-base carbon fiber | Hideharu Sasaki | 1990-08-14 |
| 4897229 | Process for producing a shaped silicon carbide-based ceramic article | Akio Nakaishi, Keizo Shimada, Takashi Watanabe | 1990-01-30 |
| 4840762 | Process for preparation of high-performance grade carbon fibers | Hideharu Sasaki, Tsutomu Nakamura, Jiro Sadanobu | 1989-06-20 |
| 4628001 | Pitch-based carbon or graphite fiber and process for preparation thereof | Hideharu Sasaki, Yoshiaki Yoshioka | 1986-12-09 |
| 4590055 | Pitch-based carbon fibers and pitch compositions and precursor fibers therefor | Yasuhiro Yamada, Takeshi Imamura, Hidemasa Honda, Hideharu Sasaki | 1986-05-20 |
| 4507467 | Wholly aromatic halogenated polyamide fiber and film | Keizo Shimada, Hideharu Sasaki, Hiroshi Mera, Akihiro Aoki | 1985-03-26 |