KO

Koichi Ohtaka

Ricoh Company: 10 patents #2,244 of 9,818Top 25%
TC The Cannon Company: 1 patents #3 of 90Top 4%
TU Tohoku University: 1 patents #615 of 1,680Top 40%
Overall (All Time): #407,856 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
11743658 Electrostatic acoustic wave generating device and electrostatic speaker Joerg Froemel, Shuji Tanaka 2023-08-29
8014058 Method for driving optical deflecting device array, optical deflecting device array, optical deflecting device, and image projection displaying apparatus Seiichi Katoh, Takeshi Nanjyo 2011-09-06
7777935 Actuator, and actuator array Takeshi Nanjyo, Seiichi Katoh 2010-08-17
7607786 Light deflector, light deflection array, optical system, image forming device, and projection type image display apparatus Takeshi Nanjyo, Seiichi Katoh 2009-10-27
7480090 Optical deflecting device, optical deflecting device array, method for driving the optical deflecting device and image projection display apparatus using the device Seiichi Katoh, Takeshi Nanjyo 2009-01-20
7417778 Light deflector, light deflection array, image forming apparatus, and image projection display apparatus Takeshi Nanjo, Seiichi Katoh 2008-08-26
7408688 Method for driving optical deflecting device array, optical deflecting device array, optical deflecting device, and image projection displaying apparatus Seiichi Katoh, Takeshi Nanjyo 2008-08-05
7349145 Optical deflection device and image projection display apparatus using the same Seiichi Katoh, Takeshi Nanjyo 2008-03-25
7345823 Optical system, color information displaying method, optical deflecting device, and image projection displaying apparatus Takeshi Nanjo, Akihiro Yamakage, Masaaki Ishiyama, Seiichi Katoh 2008-03-18
7277217 Optical deflecting device, optical deflecting device manufacturing method, and optical projecting device Seiichi Katoh, Takeshi Nanjyo 2007-10-02
7167290 Optical deflection device Seiichi Katoh, Takeshi Nanjo 2007-01-23
5619307 Method of printing test pattern and apparatus for outputting test pattern Hitoshi Machino, Masako Takahashi, Atsuya Takahashi, Nobuyuki Kinoshita 1997-04-08