Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6789428 | Method and apparatus for evaluating damage of metal material | Nobuhiko Nishimura, Masafumi Yamauchi, Takumi Tokiyoshi, Takao Hashimoto, Masaaki Fujita +1 more | 2004-09-14 |
| 6606910 | Method and apparatus for evaluating damage of metal material | Nobuhiko Nishimura, Masafumi Yamauchi, Takumi Tokiyoshi, Takao Hashimoto, Masaaki Fujita +1 more | 2003-08-19 |
| 6207321 | Sodium secondary battery | Masayuki Fukagawa, Nozomu Kawasetsu, Katsuzou Sudou, Akihiro Sawata | 2001-03-27 |
| 6138514 | Tube flaw detecting method using two probes | Kiyotaka Aoki, Hironori Ishii, Shinichi Tsuji, Kinjiro Kobayashi | 2000-10-31 |
| 5669232 | Refrigerating unit | Yukinobu Nishikawa | 1997-09-23 |
| 4935603 | Hot water supply system | Kiyoshi Watanabe | 1990-06-19 |
| 4920804 | Insert type ultrasonic crack hunting apparatus | Masaaki Torichigai | 1990-05-01 |
| 4907542 | Cleaning system for a horizontal type tube assembly | Takuzo Maeyama, Kenichi Nii, Shigeru Shimojo, Masaaki Torichigai | 1990-03-13 |
| 4879973 | Automatic tube circumference scanning apparatus | Takuzo Maeyama, Kenichi Nii, Shigeru Shimojo, Masaaki Torichigai, Kiyoshi Koizumi | 1989-11-14 |
| 4872347 | Automated ultrasonic examination system for heat transfer tubes in a boiler | Yoshimi Okabe, Masaaki Torichigai, Shozo Kaneko, Joji Ichinari, Kiyoshi Koizumi | 1989-10-10 |
| 4854614 | Cable insert nozzle | Masaaki Torichigai | 1989-08-08 |
| 4800927 | Cable insertion nozzle | Masaaki Torichigai | 1989-01-31 |