Toshimasa Yamanaka

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Representation of depth of field in camera
- Patent number 5,621,495
- Issue date Apr 15, 1997
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masato Yamamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Exposure control apparatus of camera
- Patent number 5,602,616
- Issue date Feb 11, 1997
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Osamu Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Representation of depth of field in camera
- Patent number 5,510,875
- Issue date Apr 23, 1996
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masato Yamamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Exposure control apparatus of camera
- Patent number 5,485,242
- Issue date Jan 16, 1996
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Osamu Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Exposure control apparatus of camera
- Patent number 5,382,997
- Issue date Jan 17, 1995
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Osamu Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Exposure control apparatus of camera including exposure factor limi...
- Patent number 5,280,319
- Issue date Jan 18, 1994
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Osamu Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Indicating apparatus within finder of camera
- Patent number 5,170,206
- Issue date Dec 8, 1992
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masato Yamamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Single-lens reflex camera with built-in flash
- Patent number 5,066,967
- Issue date Nov 19, 1991
- Asahi Kogaku Kogyo K.K.
- Masato Yamamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
SLR camera with auxiliary light emitter
- Patent number 5,065,177
- Issue date Nov 12, 1991
- Asahi Kogaku Kogyo K.K.
- Masato Yamamoto
- G02 - OPTICS
Information Patent Grant
Camera with side-mounted balancer
- Patent number 5,036,343
- Issue date Jul 30, 1991
- Asahi Kogaku Kogyo K.K.
- Toshimasa Yamanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Representation of depth of field in camera
- Patent number 5,019,852
- Issue date May 28, 1991
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masato Yamamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Indicating apparatus within finder of camera
- Patent number 4,977,425
- Issue date Dec 11, 1990
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masato Yamamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Indicating apparatus within finder of single-lens reflex camera
- Patent number 4,949,118
- Issue date Aug 14, 1990
- Asahi Kogaku Kogyo K.K.
- Masato Yamamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Actuating mechanism and multiposition rubber or membrane switch device
- Patent number 4,918,264
- Issue date Apr 17, 1990
- Asahi Kogaku Kogyo K.K.
- Masato Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Single-lens reflex camera with built-in flash
- Patent number 4,910,542
- Issue date Mar 20, 1990
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masato Yamamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Pair of binoculars
- Patent number D306606
- Issue date Mar 13, 1990
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Toshimasa Yamanaka
- D16 - Photography and optical equipment
Information Patent Grant
Single-lens reflex camera with built-in flash
- Patent number 4,893,140
- Issue date Jan 9, 1990
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masato Yamamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Back-cover release device for a camera
- Patent number 4,887,114
- Issue date Dec 12, 1989
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masato Yamamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Toshimasa Yamanaka

Person

Patents Grantslast 30 patents

Representation of depth of field in camera

Exposure control apparatus of camera

Representation of depth of field in camera

Exposure control apparatus of camera

Exposure control apparatus of camera

Exposure control apparatus of camera including exposure factor limi...

Indicating apparatus within finder of camera

Single-lens reflex camera with built-in flash

SLR camera with auxiliary light emitter

Camera with side-mounted balancer

Representation of depth of field in camera

Indicating apparatus within finder of camera

Indicating apparatus within finder of single-lens reflex camera

Actuating mechanism and multiposition rubber or membrane switch device

Single-lens reflex camera with built-in flash

Pair of binoculars

Single-lens reflex camera with built-in flash

Back-cover release device for a camera