Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4970278 | Method of preventing polymer scale deposition | Masahiro Tsujinaka, Toragoro Mitani | 1990-11-13 |
| 4904309 | Chemical cleaning method of the interior of polymerization reactor | Toragoro Mitani, Hiroaki Yamauchi, Hideo Yasui | 1990-02-27 |
| 4863524 | Method of cleaning the interior of polymerization reactor | Toragoro Mitani, Hiroaki Yamauchi, Hideo Yasui | 1989-09-05 |
| 4805650 | Apparatus for cleaning a tank-like vessel | Hideo Yasui, Toragoro Mitani | 1989-02-21 |
| 4795800 | Scale deposition preventing agent | Hiroaki Yamauchi, Toragoro Mitani | 1989-01-03 |
| 4521289 | Method and apparatus for installation of a membrane to an electrolytic cell | Tokuzo Iijima, Toshiharu Yamamoto, Kazuo Kishimoto, Toshiji Kano, Akinori Hisanaga | 1985-06-04 |
| 4316790 | Cation exchange membranes | Tokuzo Iijima, Yasushi Samejima, Kazuo Kishimoto, Toshiji Kano | 1982-02-23 |
| 4316789 | Cation exchange membranes | Tokuzo Iijima, Yasushi Samejima, Kazuo Kishimoto, Toshiji Kano | 1982-02-23 |
| 4293395 | Process for electrolysis of an aqueous alkali metal chloride solution | Tokuzo Iijima, Yasushi Samejima, Kazuo Kishimoto, Toshiji Kano | 1981-10-06 |
| 4278526 | Apparatus for electrolysis of an aqueous alkali metal chloride solution | Tokuzo Iijima, Yasushi Samejima, Kazuo Kishimoto, Toshiji Kano | 1981-07-14 |
| 4268365 | Method of electrolysis of an alkali metal chloride | Tokuzo Iijima, Toshiharu Yamamoto, Kazuo Kishimoto, Toshiji Kano | 1981-05-19 |
| 4268372 | Method and apparatus for installing a membrane to an electrolytic cell | Tokuzo Iizima, Yasushi Samejima, Kazuo Kishimoto, Toshiji Kano | 1981-05-19 |
| 4268373 | Method and apparatus for installation of a membrane to an electrolytic cell | Tokuzo Iijima, Toshiharu Yamamoto, Kazuo Kishimoto, Toshiji Kano, Akinori Hisanaga | 1981-05-19 |
| 4240883 | Method for electrolysis of an aqueous alkali metal chloride solution | Tokuzo Iijima, Yasushi Samejima, Kazuo Kishimoto, Toshiji Kano | 1980-12-23 |