Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5075373 | Water retention material with water-absorbency | Shinichi Takemori, Morio Nakamura, Kosaku Yamada, Tetsurou Motooka | 1991-12-24 |
| 4972019 | Water-absorbent resin composition | Morio Nakamura, Takushi Yamamoto, Hitoshi Tanaka, Yuji Sakamoto | 1990-11-20 |
| 4880888 | Process for producing a water-absorbent resin | Morio Nakamura, Takushi Yamamoto, Hitoshi Tanaka, Yuji Sakamoto | 1989-11-14 |
| 4863989 | Water-absorbent resin composition | Morio Nakamura, Takushi Yamamoto, Hitoshi Tanaka, Yuji Sakamoto | 1989-09-05 |
| 4732968 | Process for granulating a water-absorbent resin employing (a) water (b) inorganic powder & (c) surfactant in an inert solvent | Morio Nakamura, Takushi Yamamoto, Hitoshi Tanaka, Yuji Sakamoto, Yasuhiro Shimada | 1988-03-22 |
| 4683274 | Process for producing a water-absorbent resin | Morio Nakamura, Takushi Yamamoto, Toshikazu Nakanishi, Hitoshi Tanaka, Yuji Sakamoto | 1987-07-28 |
| 4590227 | Water-swellable elastomer composition | Morio Nakamura, Shinichi Takemori, Hitoshi Tanaka, Motomu Hirakawa | 1986-05-20 |
| 4541871 | Water-absorbent resin having improved water-absorbency and improved water-dispersibility and process for producing same | Morio Nakamura, Takushi Yamamoto, Masato Fujikake | 1985-09-17 |
| 4507438 | Water-absorbent resin having improved water-absorbency and improved water-dispersibility and process for producing same | Morio Nakamura, Takushi Yamamoto, Masato Fujikake | 1985-03-26 |
| 4340706 | Alkali metal acrylate or ammonium acrylate polymer excellent in salt solution-absorbency and process for producing same | Morio Nakamura, Koichi Fujiki, Takushi Yamamoto | 1982-07-20 |