LexDanaLexDanabeta
Inventor

Hideo Ohkuma

Inventor
Tokyo, JP

Overview

16→
Patents
1979–2020
Patent span
Physics
Primary field (CPC G)

Patents· 16 as inventor

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

G03Bprimary
G03BApparatus or arrangements for taking photographs or for projecting or viewing them18%
G11BInformation storage based on relative movement between record carrier and transducer14%
G02BOptical elements, systems or apparatus7%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein7%
H02KDynamo-electric machines7%
H04NPictorial communication, e.g. television7%
H05KPrinted circuits7%
B23KSoldering or unsoldering4%
B24BMachines, devices, or processes for grinding or polishing4%
C04BLime, magnesia4%
PatentTitleYear
10,534,241Blade opening/closing apparatus and image pickup apparatus20208,167,508'Light amount adjusting device and image capture apparatus'20127,806,605'Light amount adjustment apparatus and image pickup apparatus'20107,768,879'Optical pickup and optical disk apparatus'20107,758,261'Light amount adjustment apparatus and image pickup apparatus'20107,699,546'Light amount adjusting device and image capture apparatus'20107,327,644'Optical pickup and disc drive apparatus'20087,294,373'Liquid crystal display cell, display cell, glass substrate for display device and manufacturing method for liquid crystal display cell'20076,816,225'LCD cell construction by mechanical thinning of a color filter substrate'20046,554,689'Work holding member for mechanical abrasion, abrading method, and abrading machine'20036,480,460'Actuator for an objective lens of an optical pickup for preventing skew of the optical axis'20025,878,942'Soldering method and soldering apparatus'19995,815,919'Process for producing an interconnect structure on a printed-wiring board'19985,684,645'Lens moving apparatus preventing resonance without using yoke bridge and counterweight'19975,509,558'Metal oxide resistor, power resistor, and power circuit breaker'19964,170,770'Gas leak-detecting apparatus'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1996Based in Kawasaki, JP· patent location history
1997–2020Patents assigned to SONY CORP (9)· patent assignee history
1997–2002Based in Chiba, JP· patent location history
1998–2007Patents assigned to IBM (5)· patent assignee history
1998–2004Based in Shiga, JP· patent location history
1999–2007Based in Yasu, JP· patent location history
2003Patents assigned to HAMAI SANGYO (1)· patent assignee history
2007Patents assigned to CMO JAPAN CO LTD (1)· patent assignee history
2008–2020Based in Tokyo, JP· patent location history
2012Patents assigned to MAEDA YUTAKA (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONY CORP91997–2020
IBM51998–2007
CMO JAPAN CO LTD12007
HAMAI SANGYO12003
MAEDA YUTAKA12012
Locations
LocationPatentsSpan
Tokyo, JP72008–2020
Shiga, JP31998–2004
Yasu, JP21999–2007
Chiba, JP21997–2002
Kawasaki, JP21979–1996