Inventor

Tetsuji Ogawa

Inventor

Utsunomiya, JP

Overview

1988–2017

Patent span

Human necessities

Primary field (CPC A)

Patents· 13 as inventor

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

A61Bprimary

A61BDiagnosis44%

G06FElectric digital data processing25%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for6%

E05BLocks6%

E05CBolts or fastening devices for wings, specially for doors or windows6%

G10LSpeech analysis techniques or speech synthesis6%

H04JMultiplex communication6%

PatentTitleYear

9,810,008'Lock section structure'2017 8,422,694'Source sound separator with spectrum analysis through linear combination and method therefor'2013 7,488,071'Ophthalmologic image recording apparatus, ophthalmologic image recording method, and ophthalmologic image recording program'2009 7,237,895'Ophthalmologic apparatus'2007 6,644,809'Ophthalmologic apparatus and control method thereof'2003 6,327,375'Ophthalmologic phototaking apparatus'2001 6,244,710'Ophthalmogical photographing apparatus'2001 6,158,864'Apparatus for phototaking the image of an eye comprising systems for converting an image signal from an image pickup element into animated-picture-display and digital-image signals'2000 5,584,041'Channel apparatus having a plurality of channels capable of being operated either in parallel mode or in separate mode'1996 5,581,789'Data transfer system'1996 5,530,494'Opthalmic photographing apparatus having photographic light amount correction input means'1996 4,858,108'Priority control architecture for input/output operation'1989 4,788,638'Data transfer apparatus between input/output devices and main storage with channel devices being of a concentrated type and stand-alone type'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1996Patents assigned to HITACHI LTD (4)· patent assignee history

1988–1996Based in Hadano, JP· patent location history

1996–2009Patents assigned to CANON KK (7)· patent assignee history

2000–2009Based in Utsunomiya, JP· patent location history

2003–2007Based in Tochigi, JP· patent location history

2013Patents assigned to AKAGIRI KENZO (1)· patent assignee history

2013Patents assigned to KOBAYASHI TETSUNORI (1)· patent assignee history

2013Based in Kanagawa, JP· patent location history

2017Patents assigned to CALSONIC KANSEI CORP (1)· patent assignee history

2017Based in Saitama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CANON KK	7	1996–2009
HITACHI LTD	4	1988–1996
AKAGIRI KENZO	1	2013
CALSONIC KANSEI CORP	1	2017
KOBAYASHI TETSUNORI	1	2013

Locations

Location	Patents	Span
Utsunomiya, JP	4	2000–2009
Hadano, JP	4	1988–1996
Tochigi, JP	2	2003–2007
Saitama, JP	1	2017
Kanagawa, JP	1	2013