Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12432820 | Heater and production thereof | — | 2025-09-30 |
| 10687393 | One-coat encapsulated graphite heater and process | Zhong-Hao Lu, Tomoo Hasegawa, Yuji Morikawa | 2020-06-16 |
| 8993939 | Resistance heater | Yuji Morikawa, Akinobu Otaka, Takeshi Higuchi, Kensuke Fujimura, Zhong-Hao Lu | 2015-03-31 |
| 8426759 | Vacuum circuit breaker | Kazuhiro Nagatake, Tooru Kobayashi | 2013-04-23 |
| 8269586 | Large-capacity vacuum circuit breaker | Mitsuyasu Shiozaki | 2012-09-18 |
| 8164028 | Resistance heater | Yuji Morikawa, Akinobu Otaka, Takeshi Higuchi, Kensuke Fujimura | 2012-04-24 |
| 6870118 | Contact for vacuum interrupter, and vacuum interrupter using same | Akira Nishijima, Hidemitsu Takebuchi, Takaaki Furuhata | 2005-03-22 |
| 6765168 | Electrode of vacuum circuit breaker, and method of producing electrode of vacuum circuit breaker | Hidemitsu Takebuchi, Akira Nishijima, Yoshihiro Fukatsu | 2004-07-20 |
| 6740838 | Contact for vacuum interrupter and vacuum interrupter using the contact | Hidemitsu Takebuchi, Akira Nishijima | 2004-05-25 |
| 6686552 | Contact for vacuum interrupter, and vacuum interrupter using same | Akira Nishijima, Hidemitsu Takebuchi, Takaaki Furuhata | 2004-02-03 |
| 6649855 | Contact arrangement for vacuum interrupter and vacuum interrupter using the contact arrangement | Akira Nishijima, Hidemitsu Takebuchi | 2003-11-18 |
| 6639169 | Contact for vacuum interrupter and vacuum interrupter using the contact | Hidemitsu Takebuchi, Akira Nishijima | 2003-10-28 |
| 5194921 | Method and apparatus for detecting flocculation process of components in liquid | Norihito Tambo, Tokio Ohto, Yasushi Zaitsu, Mutsuhisa Hiraoka, Hiroshi Hoshikawa +1 more | 1993-03-16 |
| 4475609 | Device for gauging large load exerted on steel structure or the like | Toshio Sakai, Takehiro Matsui, Akira Tanioka, Kohki Koyanagi, Takaaki Ohkubo +5 more | 1984-10-09 |