Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6442733 | Failure analyzing method and apparatus using two-dimensional wavelet transforms | Kazuyuki Maruo, Takahiro Yamaguchi | 2002-08-27 |
| 5983372 | Failure counting method and device | — | 1999-11-09 |
| 5403821 | Drilling fluid additives | Shorbu Shioji, Yoshio Irie | 1995-04-04 |
| 5369148 | Method for continuous agglomeration of an absorbent resin powder and apparatus therefor | Hitoshi Takahashi, Hiroyuki Kakita, Yoshio Irie, Kazumi Akihisa | 1994-11-29 |
| 5338810 | Method for production of acrylate and acrylate-containing polymer | Tadao Shimomura, Yoshio Irie, Hitoshi Takahashi, Katsuhiro Kajikawa, Jyunichi Saga +1 more | 1994-08-16 |
| 5264495 | Method for production of salt-resistant absorbent resin | Yoshio Irie, Katsuhiro Kajikawa, Hitoshi Takahashi | 1993-11-23 |
| 5229488 | Method for manufacture of an absorbent resin | Kinya Nagasuna, Katsuhiro Kajikawa, Takumi Hatsuda, Yoshio Irie | 1993-07-20 |
| 5229487 | Method for metered supply of material, apparatus therefor, and method for production of hydrophilic polymer by use thereof | Tsuneo Tsubakimoto, Takehiro Takashima, Hitoshi Takahashi | 1993-07-20 |
| 5210298 | Method for production of acrylate and acrylate-containing polymer | Tadao Shimomura, Yoshio Irie, Hitoshi Takahashi, Katsuhiro Kajikawa, Jyunichi Saga +1 more | 1993-05-11 |
| 5135677 | Process for producing acid-type maleic acid polymer and water-treating agent and detergent additive containing said polymer | Shigeru Yamaguchi, Shorbu Shioji, Yoshio Irie | 1992-08-04 |
| 5073612 | Hydrophilic polymer and method for production thereof | Yoshio Irie, Shigeyasu Morihiro, Masazumi Sasabe, Kaoru Iwasaki | 1991-12-17 |
| 5064563 | Process for producing and use of maleic acid (co-) polymer salt improved in biodegradability | Shigeru Yamaguchi, Tokihiro Yokoi, Shorbu Shioji, Yoshio Irie | 1991-11-12 |
| 4920202 | Method for production of hydrophilic polymer from hydrated gel polymer | Yoshio Irie, Kaoru Iwasaki, Takumi Hatsuda, Kazumasa Kimura, Nobuyuki Harada +2 more | 1990-04-24 |
| 4892902 | Method for production of aqueous dispersion of inorganic pigment | Shobu Shioji, Masazumi Sasabe, Yorimichi Dairoku | 1990-01-09 |
| 4818783 | Method for production of aqueous dispersion of inorganic pigment | Shobu Shioji, Masazumi Sasabe, Yorimichi Dairoku | 1989-04-04 |