Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8731131 | Method of reducing corrosion of nuclear reactor structural material | Seiji Yamamoto, Tadasu Yotsuyanagi, Nagayoshi Ichikawa, Tetsuo Oosato, Masato Okamura +7 more | 2014-05-20 |
| 8295426 | Method of reducing corrosion of nuclear reactor structural material | Seiji Yamamoto, Tadasu Yotsuyanagi, Nagayoshi Ichikawa, Tetsuo Oosato, Masato Okamura +7 more | 2012-10-23 |
| 5086133 | Process for producing highly water absorptive polymer | Kiichi Itoh, Kenji Yoshinaga | 1992-02-04 |
| 5077434 | Process for production of acrylic acid | Kohei Sarumaru | 1991-12-31 |
| 5059664 | Process for the preparation of water absorptive resin | Shuhei Yada, Kiichi Itoh, Kenji Yoshinaga | 1991-10-22 |
| 5048601 | Shell-and-tube apparatus having an intermediate tube plate | Katsunobu Yamaguchi, Tateo Kurihara, Isamu Yanai, Kazuo Kikuchi, Tomoo Saito +5 more | 1991-09-17 |
| 4957984 | Process for producing highly water absorptive polymer | Kiichi Itoh, Shuhei Yada, Shinji Tsunoi | 1990-09-18 |
| 4948659 | Process for preparation of water absorptive composite | Kiichi Itoh | 1990-08-14 |
| 4892754 | Process for preparation of water absorptive composite material | Kiichi Itoh | 1990-01-09 |
| 4873368 | Process for producing acrylic acid | Koju Kadowaki, Kohei Sarumaru | 1989-10-10 |
| 4865886 | Process for preparation of water absorptive composite material | Kiichi Itoh | 1989-09-12 |
| 4842927 | Process for preparation of water absorptive composite | Kiichi Itoh | 1989-06-27 |
| 4837360 | Process for producing acrolein and acrylic acid | Koju Kadowaki, Kohei Sarumaru | 1989-06-06 |
| 4835020 | Process for preparation of water absorptive composite material | Kiichi Itoh | 1989-05-30 |
| 4755560 | Process for producing highly water-absorbing polymer | Kiichi Ito | 1988-07-05 |
| 4738867 | Process for the preparation of water absorptive composite material | Kiichi Itoh | 1988-04-19 |
| 4625059 | Process for purification of 1,2-unsaturated carboxylic acids and/or esters thereof | Yasuyuki Sakakura, Kiichi Ito, Kazuhiko Higuchi | 1986-11-25 |
| 4604370 | Process for regenerating a catalyst | Kohei Sarumaru, Yoichi Ishii, Etsuji Yamamoto | 1986-08-05 |
| 4365087 | Production of acrylic acid | Koju Kadowaki, Kohei Sarumaru | 1982-12-21 |