Inventor

Masatoshi Ida

Inventor

Hachioji, JP

Overview

28→

Patents

1980–1992

Patent span

Physics

Primary field (CPC G)

Patents· 28 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer29%

G02BOptical elements, systems or apparatus21%

H04NPictorial communication, e.g. television21%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them10%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%

G01CMeasuring distances, levels or bearings5%

H03MCoding2%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation2%

PatentTitleYear

5,130,868'Apparatus and method for positioning a transducer for recording, reproducing or erasing information on a medium'1992 5,012,362'Apparatus for positioning a transducer for recording, reproducing or erasing information on a medium'1991 4,873,580'Detachable unit electronic camera'1989 4,827,365'Assembly for accessing information recording medium'1989 4,811,118'Detachable unit electronic camera'1989 4,746,990'Detachable unit electronic camera'1988 4,701,605'Apparatus and method for detecting focus condition of an imaging optical system'1987 4,641,215'Exposure control device for electronic photographing apparatus'1987 4,599,653'Focus indicator apparatus for an electronic camera'1986 4,593,188'Apparatus and method for detecting focus condition of an imaging optical system'1986 4,575,626'Apparatus for detecting focus conditions of an imaging optical system'1986 4,563,705'Automatic focus controlling apparatus and method'1986 4,562,346'Apparatus and method for detecting focus condition of imaging optical system employing both sharpness detection and lateral shift detection'1985 4,562,345'Method and apparatus for detecting focus conditions of a photographic optical system'1985 4,556,908'Solid state image sensor'1985 4,540,881'Method of detecting focusing conditions'1985 4,518,863'Static induction transistor image sensor with noise reduction'1985 4,503,467'Analog-digital converting apparatus'1985 4,492,449'Apparatus and technique for detecting and controlling the focusing of an optical system by image sharpness and lateral shift techniques'1985 4,483,602'Apparatus for detecting a focusing condition of an objective lens'1984 4,453,818'Method of automatically adjusting focus conditions'1984 4,443,079'Method and apparatus for detecting focus condition of objective lens'1984 4,428,009'Superminiature tape recorder'1984 4,316,657'Apparatus for electrically detecting focal point of cameras or the like optical devices'1982 4,274,116'Tape recorder'1981 4,270,152'Magnetic tape reproduction device'1981 4,255,654'Method of electrically detecting focal point of cameras or the like optical devices'1981 4,195,319'Apparatus for detecting information index signal from magnetic tape'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1992Patents assigned to OLYMPUS OPTICAL CO (27)· patent assignee history

1980–1992Based in Hachioji, JP· patent location history

1981–1987Based in Tokyo, JP· patent location history

1985Patents assigned to TOYOTA MOTOR CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
OLYMPUS OPTICAL CO	27	1980–1992
TOYOTA MOTOR CO LTD	1	1985

Locations

Location	Patents	Span
Hachioji, JP	23	1980–1992
Tokyo, JP	5	1981–1987