Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8970127 | Lighting circuit and illumination device | Mitsuhiro Matsuda, Naoko Iwai, Hiroshi Kubota, Takuro Hiramatsu, Katsusuke Uchino +1 more | 2015-03-03 |
| 8593067 | Led lighting device and illumination apparatus | Naoko Iwai, Kenichi Asami, Hitoshi Kawano, Masatoshi Kumagai | 2013-11-26 |
| 8305010 | Light-emitting diode lighting device with step-down chopper | Masahiko Kamata, Hirokazu Otake, Shinya Hakuta, Takuro Hiramatsu, Toshiyuki Hiraoka +1 more | 2012-11-06 |
| 8218289 | Electrolytic capacitor and electric equipment provided therewith | Isao Abe, Kenichi Asami, Yoshiyuki Matsunaga, Hideo Kozuka | 2012-07-10 |
| 6633137 | Electrical apparatus | Yoshiyuki Matsunaga, Kenichi Asami, Isao Abe | 2003-10-14 |
| 6437516 | Unsaturating transformer, an electronic ballast using the transformer, and a self-ballasted | Shinya Hakuta | 2002-08-20 |
| 6252357 | Self-ballasted fluorescent lamp and lighting fixture | Toshiya Tanaka, Tsutomu Araki, Shinya Hakuta, Kazuyuki Uratani, Fuminori Nakaya | 2001-06-26 |
| 6107747 | Self ballasted fluorescent lamp and lighting fixture | Shinya Hakuta | 2000-08-22 |
| 5678144 | Image forming apparatus having a rotational information detector for a photoreceptor | Isao Matsuoka | 1997-10-14 |
| 5508784 | Speed control for color image forming apparatus with residual toner cleaning | Isao Matsuoka | 1996-04-16 |