Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12421349 | Polyphenylene ether composition | Jaehoon Kim, Shinichi FUKUEN, Shoji Otani, Ryoko Fukuoka, Noko Honda | 2025-09-23 |
| 11548981 | Polyphenylene ether, composition of the same, and manufacturing method of the same | Shoji Otani, Katsuhiro Iwase, Masaaki Aramaki | 2023-01-10 |
| 7625083 | Spring hinge structure for eyewear | — | 2009-12-01 |
| 7538044 | Process for producing high-purity silicon and apparatus | Takayuki Shimamune, Tadashi Yoshikawa, Nobuo Ishizawa | 2009-05-26 |
| 6631194 | Openable eyewear temple structure | — | 2003-10-07 |
| 6238048 | Temple structure for eyeglasses | — | 2001-05-29 |
| 5588133 | Register block circuit for central processing unit of microcomputer | Kazuyoshi Yoshida, Hiroshi Itoh, Makoto Shinohara | 1996-12-24 |
| 5450566 | Register block circuit for central processing unit of microcomputer | Kazuyoshi Yoshida, Hiroshi Itoh, Makoto Shinohara | 1995-09-12 |
| RE34912 | Slag treatment material | Kozo Sonobe, Takashi Fukuzawa, Kohsuke Takeuchi, Tatushi Tabata, Kunio Hisamatsu +1 more | 1995-04-18 |
| 5354964 | Laser torch | Yasuo Kyoren, Takafumi Fukai | 1994-10-11 |
| 5187126 | Slag treatment material | Kozo Sonobe, Takashi Fukuzawa, Kohsuke Takeuchi, Tatushi Tabata, Kunio Hisamatsu +1 more | 1993-02-16 |
| 4882303 | Modified steel slag and method of manufacturing the same | Kozo Sonobe, Takashi Fukuzawa, Kohsuke Takeuchi, Tatushi Tabata, Kunio Hisamatsu +1 more | 1989-11-21 |