Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5719455 | Method of designing a superconductivity employing apparatus and a superconductivity employing apparatus constructed by the method | Hiromasa Higasa, Masanori Yamashita, Makoto Hirose | 1998-02-17 |
| 5646811 | Reverse-charge prevention apparatus | Hiromasa Higasa | 1997-07-08 |
| 5555469 | Image forming apparatus having toner recycling device with electrostatic conveyor | Seiji Oka, Tsukuru Kai | 1996-09-10 |
| 5525849 | Superconducting bearing | Norio Ito, Tatsuya Shimoda, Hiroshi Imaizumi, Hiromasa Higasa | 1996-06-11 |
| 5465806 | Electric vehicle | Hiromasa Higasa, Shigenori Matsumura, Hidetoshi Nasu, Kazunobu Sato | 1995-11-14 |
| 5313130 | Superconduction bearing | Motoaki Shibayama, Takenori Tada, Terutsugu Oyama, Hiromasa Higasa | 1994-05-17 |
| 5289147 | Image forming apparatus having system for reducing noise | Tadao Koike, Kenji Fukumizu, Hiroo Kitagawa, Tkaaki Yanagisawa, Satoshi Kanda | 1994-02-22 |
| 5245385 | Image forming apparatus which reduces noise generated therefrom | Kenji Fukumizu, Hiroo Kitagawa, Tadao Koike, Takaaki Yanagisawa, Satoshi Kanda | 1993-09-14 |
| 5222568 | Electric vehicle | Hiromasa Higasa, Shigenori Matsumura, Hidetoshi Nasu, Kazunobu Sato | 1993-06-29 |
| 5162964 | Connection control device for controlling the connection of small generator unit to electric power system | Hiromasa Higasa, Shigenori Matsumura, Soichi Yamanaka | 1992-11-10 |
| 5111377 | Interconnection for electric power system | Hiromasa Higasa, Shigenori Matsumura, Sueo Sakata, Masayoshi Kumano | 1992-05-05 |
| 5099145 | System disconnection detection circuit for a distributed location power source | Hiromasa Higasa, Shigenori Matsumura, Takeshi Takemura, Toshihisa Shimizu | 1992-03-24 |
| 4697136 | Inverter system for inputting alternating current and direct current in combination | — | 1987-09-29 |