Yoshiaki Hirao

Person

Kashihara, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Video camera with automatic focusing function
- Patent number 5,077,613
- Issue date Dec 31, 1991
- Matsushita Electric Industrial Co., Ltd.
- Yoshiaki Hirao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Zoom lens driving apparatus
- Patent number 4,991,944
- Issue date Feb 12, 1991
- Matsushita Electric Industrial Co., Ltd.
- Yoshiaki Hirao
- G02 - OPTICS
Information Patent Grant
Automatic focusing apparatus
- Patent number 4,975,726
- Issue date Dec 4, 1990
- Matsushita Electric Industrial Co., Ltd.
- Ryuichiro Kuga
- G02 - OPTICS
Information Patent Grant
Video camera with an automatic focusing system
- Patent number 4,924,317
- Issue date May 8, 1990
- Matsushita Electric Industrial Co., Ltd.
- Yoshiaki Hirao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Semiconductor light position detector for rangefinder
- Patent number 4,850,692
- Issue date Jul 25, 1989
- Matsushita Electric Industrial Co., Ltd.
- Yoshiaki Hirao
- G02 - OPTICS
Information Patent Grant
Video camera with high-speed scanning
- Patent number 4,849,813
- Issue date Jul 18, 1989
- Matsushita Electric Industrial Co., Ltd.
- Yoshiaki Hirao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light-emitting device for automatic focus adjustment apparatus
- Patent number 4,758,764
- Issue date Jul 19, 1988
- Matsushita Electric Industrial Co., Ltd.
- Ryuichiro Kuga
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Automatic focusing apparatus for camera
- Patent number 4,673,274
- Issue date Jun 16, 1987
- Matsushita Electric Industrial Co., Ltd.
- Yoshitomi Nagaoka
- G02 - OPTICS
Information Patent Grant
Automatic focusing device for a video camera
- Patent number 4,621,292
- Issue date Nov 4, 1986
- Matsushita Electric Industrial Co., Ltd.
- Yoshiaki Hirao
- G02 - OPTICS
Information Patent Grant
Pulse signal amplitude storage-holding apparatus
- Patent number 4,591,736
- Issue date May 27, 1986
- Matsushita Electric Industrial Co., Ltd.
- Yoshiaki Hirao
- G11 - INFORMATION STORAGE

Yoshiaki Hirao

Person

Patents Grantslast 30 patents

Video camera with automatic focusing function

Zoom lens driving apparatus

Automatic focusing apparatus

Video camera with an automatic focusing system

Semiconductor light position detector for rangefinder

Video camera with high-speed scanning

Light-emitting device for automatic focus adjustment apparatus

Automatic focusing apparatus for camera

Automatic focusing device for a video camera

Pulse signal amplitude storage-holding apparatus