Takayuki Hatase

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Device and method for detecting a focusing state with reliability c...
- Patent number 4,960,986
- Issue date Oct 2, 1990
- Ricoh Company, Ltd.
- Yoshimi Ohno
- G02 - OPTICS
Information Patent Grant
Varifocal lens device
- Patent number 4,881,799
- Issue date Nov 21, 1989
- Ricoh Company, Ltd.
- Yoshimi Ohno
- G02 - OPTICS
Information Patent Grant
Variable focal lens device
- Patent number 4,861,146
- Issue date Aug 29, 1989
- Ricoh Company, Ltd.
- Takayuki Hatase
- G02 - OPTICS
Information Patent Grant
Auto-focus arithmetic device
- Patent number 4,831,405
- Issue date May 16, 1989
- Ricoh Company, Ltd.
- Daisuke Hata
- G02 - OPTICS
Information Patent Grant
Automatic focusing device for use in a camera
- Patent number 4,825,237
- Issue date Apr 25, 1989
- Ricoh Company Ltd.
- Takayuki Hatase
- G02 - OPTICS
Information Patent Grant
Apparatus for controlling a motor in a camera
- Patent number 4,818,921
- Issue date Apr 4, 1989
- Ricoh Company, Ltd.
- Daisuke Hata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Automatic focusing control system
- Patent number 4,777,505
- Issue date Oct 11, 1988
- Ricoh Company, Ltd.
- Daisuke Hata
- G02 - OPTICS
Information Patent Grant
Focus detecting device and image signal amplifier circuit therefor
- Patent number 4,763,154
- Issue date Aug 9, 1988
- Ricoh Company, Ltd.
- Susumu Iguchi
- G02 - OPTICS
Information Patent Grant
Charge-coupled device for automatic focusing and camera shake detec...
- Patent number 4,733,264
- Issue date Mar 22, 1988
- Ricoh Company, Ltd.
- Takayuki Hatase
- G02 - OPTICS

Takayuki Hatase

Person

Patents Grantslast 30 patents

Device and method for detecting a focusing state with reliability c...

Varifocal lens device

Variable focal lens device

Auto-focus arithmetic device

Automatic focusing device for use in a camera

Apparatus for controlling a motor in a camera

Automatic focusing control system

Focus detecting device and image signal amplifier circuit therefor

Charge-coupled device for automatic focusing and camera shake detec...