| 10368408 |
Light emitting device and LED light bulb |
Hiroyasu Kondo, Masahiko Yamakawa, Yasuhiro Shirakawa, Ryoji Tsuda, Atsuji Nakagawa +1 more |
2019-07-30 |
| 10368409 |
Light emitting device and LED light bulb |
Hiroyasu Kondo, Masahiko Yamakawa, Yasuhiro Shirakawa, Ryoji Tsuda, Atsuji Nakagawa +1 more |
2019-07-30 |
| 9732278 |
Petroleum coke and production method for same |
Hiroshi Kawachi, Kazuhisa Nakanishi, Takashi Oyama |
2017-08-15 |
| 9148926 |
LED lamp |
Atsuji Nakagawa |
2015-09-29 |
| 8226921 |
Raw coke for electricity storage carbon material and needle coke |
Takashi Oyama, Kazuhisa Nakanishi, Tamotsu Tano, Keiji Higashi, Ippei Fujinaga +7 more |
2012-07-24 |
| 8197788 |
Raw coke for electricity storage carbon material and needle coke |
Takashi Oyama, Kazuhisa Nakanishi, Tamotsu Tano, Keiji Higashi, Ippei Fujinaga +7 more |
2012-06-12 |
| 8040077 |
Starting circuit of starting device for high-pressure discharge lamp including auxiliary light source, starting device including the starting circuit, and lighting system including the starting device |
Atsuji Nakagawa |
2011-10-18 |
| 7959888 |
Raw coke for electricity storage carbon material and needle coke |
Takashi Oyama, Kazuhisa Nakanishi, Tamotsu Tano, Keiji Higashi, Ippei Fujinaga +7 more |
2011-06-14 |
| 7808167 |
High-pressure discharge lamp and light sources device using the same |
Atsuji Nakagawa, Hiroki Takahashi, Tomihiko Ikeda |
2010-10-05 |
| 7576494 |
High voltage discharge lamp lighting method, lighting apparatus and image device using that lighting apparatus |
Atuji Nakagawa, Hisao Furukawa, Kouichi Odani |
2009-08-18 |
| 7517093 |
Projection-type system and method of operating the same |
Atsuji Nakagawa |
2009-04-14 |
| 7504780 |
Power supply unit for light source and method of controlling the same |
Shiro Isobe, Tomotaka Mori, Atsuji Nakagawa |
2009-03-17 |
| 7478928 |
Light source device |
Shinichi Ushijima, Atsuji Nakagawa |
2009-01-20 |
| 7348737 |
Lighting circuit for high-pressure discharge lamp |
Atsuji Nakagawa |
2008-03-25 |
| 7306340 |
Projection system using a high-pressure discharge lamp adapted to d.c. lighting, and method of operating the same |
Atsuji Nakagawa |
2007-12-11 |
| 7227827 |
Optical information recording apparatus, optical information reproducing apparatus, optical information recording/reproducing apparatus, and optical information recording medium |
Hideyoshi Horimai, Mitsuteru Inoue |
2007-06-05 |
| 6914393 |
Method and device for lighting high pressure discharge lamps |
Atsuji Nakagawa |
2005-07-05 |
| 6788009 |
Method and device for lighting ultra-high pressure discharge lamps |
Andrei Kazmierski |
2004-09-07 |
| 6743465 |
Magnetic optical member with a polymer substrate |
Mitsuteru Inoue, Akio Takayama, Atsushi Kitamura, Shigeyuki Adachi, Hideki Kato |
2004-06-01 |
| 6421303 |
MULTILAYER RESONANCE DEVICE AND MAGNETO-OPTICAL RECORDING MEDIUM WITH MAGNETIC CENTER LAYER OF A DIFFERENT THICKNESS THAN THAT OF THE COMPONENTS OF THE REFLECTING LAYERS, AND METHOD OF REPRODUCING THE SAME |
Mitsuteru Inoue, Kenichi Arai, Masanori Abe, Koji Matsumoto |
2002-07-16 |
| 6359722 |
Optical isolator with a compact dimension |
Mitsuteru Inoue, Akio Takayama, Atsushi Kitamura, Shigeyuki Adachi, Hideki Kato |
2002-03-19 |
| 6285130 |
Metal halide lamp |
Atsuji Nakagawa, Tetsuya Shirai, Tatsuo Yamamoto, Tomihiko Ikeda |
2001-09-04 |
| 6262949 |
Multilayer resonance device and magneto-optical recording medium with magnetic center layer of a different thickness than that of the components of the reflecting layers |
Mitsuteru Inoue, Kenichi Arai, Masanori Abe, Koji Matsumoto |
2001-07-17 |
| 5273836 |
Magnetooptic recording material |
Naoshi Horiai, Tadao Tokushima, Michihiko Kubota |
1993-12-28 |
| 5164349 |
Electromagnetic effect material |
Atsushi Kajima, Kyoji Ohdan, Ryoji Sugise, Iwao Okamoto |
1992-11-17 |
