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Inventor

Kazuhiro Ohki

Inventor
Tokyo, JP

Overview

13→
Patents
1992–2012
Patent span
Physics
Primary field (CPC G)

Patents· 13 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus33%
H01JElectric discharge tubes or discharge lamps17%
Y10TTechnical subjects covered by former us classification11%
G01DMeasuring not specially adapted for a specific variable6%
G01MTesting static or dynamic balance of machines or structures6%
G10LSpeech analysis techniques or speech synthesis6%
H01BCables6%
H04LTransmission of digital information, e.g. telegraphic communication6%
H04NPictorial communication, e.g. television6%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers6%
PatentTitleYear
8,238,547'Sound pickup apparatus and echo cancellation processing method'20127,443,882'Data sharing system, transmitting terminal apparatus, transmitting terminal apparatus controlling method, receiving terminal apparatus, receiving terminal apparatus controlling method, and recording medium'20086,962,516'Voltage applying apparatus, and apparatus and method for manufacturing electron source'20056,821,180'Electron source manufacturing apparatus'20046,456,369'Multi-core optical fiber inspecting method and apparatus'20026,111,635'Apparatus for verifying wire gauges of multi-core optical fiber'20005,937,122'High-reflection attenuating light interception apparatus'19995,770,918'Electroconductive frit and image-forming apparatus using the same'19985,589,239'Variable-angle optical device with optically transparent substance'19965,311,367'Optical device including a transparent material between two relatively adjustable transparent members'19945,225,942'Optical signal band-pass filter module'19935,168,385'Optical device and producing method therefor'19925,103,089'Angular displacement detecting device'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2005Patents assigned to CANON KK (7)· patent assignee history
1992–1998Based in Yokohama, JP· patent location history
1992–1996Based in Kanagawa, JP· patent location history
1993–2002Patents assigned to ANDO ELECTRIC (4)· patent assignee history
1993–2012Based in Tokyo, JP· patent location history
2004–2005Based in Chiba, JP· patent location history
2008–2012Patents assigned to SONY CORP (2)· patent assignee history
2012Patents assigned to OHKI KAZUHIRO (1)· patent assignee history
2012Patents assigned to SUZUKI HIROYUKI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK71992–2005
ANDO ELECTRIC41993–2002
SONY CORP22008–2012
OHKI KAZUHIROself12012
SUZUKI HIROYUKI12012
Locations
LocationPatentsSpan
Tokyo, JP61993–2012
Yokohama, JP31992–1998
Chiba, JP22004–2005
Kanagawa, JP21992–1996