DH

Daisuke Hata

Ricoh Company: 21 patents #1,013 of 9,818Top 15%
Overall (All Time): #211,499 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
7295243 Autofocus apparatus having a flash synchronized to an autofocus sampling time 2007-11-13
6825883 Auto-focus apparatus based on pixel resolution and control method for the same 2004-11-30
6721006 Digital camera and control method for the same 2004-04-13
6700614 Autofocus apparatus 2004-03-02
6657668 Method, system, and computer readable medium for controlling automatic focusing of a digital camera 2003-12-02
6603508 Method, system, and computer readable medium for controlling a digital camera to avoid blurring of a photograph 2003-08-05
6430368 Autofocus apparatus 2002-08-06
6100928 Digital camera with variable gain to offset exposure error 2000-08-08
5307110 Pulse-controlled camera, method for setting control reference position thereof, and method for adjusting mechanical errors in production thereof Kousaku Sawabe, Kenji Koyama 1994-04-26
5274223 Vari-focal lens control system with lens driving and magnification lens driving means 1993-12-28
5231441 Focusing device for driving focusing lens group according to a position of zoom lens group 1993-07-27
5196879 Lens controller 1993-03-23
5028773 Lens controller includes a zooming optical system and a zooming speed control device 1991-07-02
4994752 Position detecting potentiometer for a moving body 1991-02-19
4899190 Zooming optical system control device 1990-02-06
4881799 Varifocal lens device Yoshimi Ohno, Takayuki Hatase 1989-11-21
4831405 Auto-focus arithmetic device Susumu Iguchi, Yoshimi Ohno, Kazumasa Aoki, Takayuki Hatase 1989-05-16
4818921 Apparatus for controlling a motor in a camera Susumu Iguchi, Yoshimi Ohno, Kazumasa Aoki, Takayuki Hatase 1989-04-04
4777505 Automatic focusing control system Susumu Iguchi, Yoshimi Ohno, Takao Yamaguchi, Takayuki Hatase, Kazumasa Aoki 1988-10-11
4763154 Focus detecting device and image signal amplifier circuit therefor Susumu Iguchi, Yoshimi Ohno, Takayuki Hatase, Takao Yamaguchi, Kazumasa Aoki 1988-08-09
4733264 Charge-coupled device for automatic focusing and camera shake detector using such charge-coupled device Takayuki Hatase, Yoshimi Ohno, Susumu Iguchi, Kazumasa Aoki 1988-03-22