Ryo Akiyama

Person

Sakai, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Combination of an optical-disk and barcode memory medium for use wi...
- Patent number 5,382,776
- Issue date Jan 17, 1995
- Matsushita Electric Industrial Co., Ltd.
- Kouji Arii
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical-disk playback apparatus, method of optical-disk playback an...
- Patent number 5,250,787
- Issue date Oct 5, 1993
- Matsushita Electric Industrial Co., Ltd.
- Kouji Arii
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc apparatus with rapid and stable accessing capability
- Patent number 5,117,410
- Issue date May 26, 1992
- Matsushita Electric Industrial Co., Ltd.
- Ryo Akiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc apparatus with rapid and stable accessing capability
- Patent number 5,073,881
- Issue date Dec 17, 1991
- Matsushita Electric Industrial Co., Ltd.
- Ryo Akiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for controlling rotation of a run length limited code mod...
- Patent number 4,864,553
- Issue date Sep 5, 1989
- Matsushita Electric Industrial Co., Ltd.
- Yoshio Sakakibara
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of accessing data recorded on a disk at a high speed
- Patent number 4,809,094
- Issue date Feb 28, 1989
- Matsushita Electric Industrial Co., Ltd.
- Ryo Akiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Motor speed control apparatus
- Patent number 4,360,767
- Issue date Nov 23, 1982
- Matsushita Electric Industrial Co., Ltd.
- Ryo Akiyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor speed adjusting apparatus
- Patent number 4,211,967
- Issue date Jul 8, 1980
- Matsushita Electric Industrial Co., Ltd.
- Ryo Akiyama
- G05 - CONTROLLING REGULATING

Ryo Akiyama

Person

Patents Grantslast 30 patents

Combination of an optical-disk and barcode memory medium for use wi...

Optical-disk playback apparatus, method of optical-disk playback an...

Optical disc apparatus with rapid and stable accessing capability

Optical disc apparatus with rapid and stable accessing capability

Apparatus for controlling rotation of a run length limited code mod...

Method of accessing data recorded on a disk at a high speed

Motor speed control apparatus

Motor speed adjusting apparatus