Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11119338 | Soft contact lens and method for suppressing attachment of soft contact lens onto cornea | Akira Nakamura, Rumiko Kitagawa, Masataka Nakamura | 2021-09-14 |
| 9921419 | Annular device | Akira Nakamura | 2018-03-20 |
| 9486362 | Ring-shaped device | Yuko Shikamura, Takao Sato, Toru Matsunaga, Yoshiko Yamazaki | 2016-11-08 |
| 6084903 | Method for melting incineration residue and apparatus therefor | Yoshinari Fujisawa, Keisuke Nakahara, Tsuyoshi Nakao, Masahiro Sudou | 2000-07-04 |
| 5267408 | Otter board | Hiromi Kinoshita | 1993-12-07 |
| 4894946 | Otter board | — | 1990-01-23 |
| 4889697 | Method of refining ferrous ion-containing acid solution | Tsugio Nakao, Kasane Yamashita, Takao Komuro, Katsuhiro Nishi | 1989-12-26 |
| 4515352 | Rotary furnace used for the production of ferrochromium | Kiyoshi Kawasaki, Sadayuki Sasaki | 1985-05-07 |
| 4414026 | Method for the production of ferrochromium | Kiyoshi Kawasaki, Sadayuki Sasaki | 1983-11-08 |
| 4412862 | Method for the production of ferrochromium | Tsuneo Miyashita, Kiyoshi Kawasaki, Sadayuki Sasaki | 1983-11-01 |
| 4378993 | Method and apparatus for measuring height level of melting zone in blast furnace | Takeshi Furukawa, Shin-ichi Saito, Takashi Kobayashi, Takeo Yamada | 1983-04-05 |