Inventor

Michikazu Kondo

Inventor

Tokyo, JP

Overview

12→

Patents

1982–2021

Patent span

Physics

Primary field (CPC G)

Patents· 12 as inventor

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

G02Fprimary

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein33%

G01RMeasuring electric variables25%

G02BOptical elements, systems or apparatus17%

G06FElectric digital data processing8%

H03FAmplifiers8%

H04QSelecting8%

PatentTitleYear

11,126,343Information processing apparatus, information processing method, and program2021 11,101,773Power amplifier module2021 6,961,485'Optical switch'2005 6,950,596'Variable optical attenuator'2005 5,850,140'Electric field sensor having sensor head with unbalanced electric field shield to shield branched optical waveguides against an applied electric field'1998 5,781,003'Electric field sensor'1998 5,574,805'Electric field sensor'1996 4,618,210'Optical switch of switched directional coupler type'1986 4,608,682'Optical time-division switching system employing optical bistable devices'1986 4,387,343'Electrooptic light modulator including weighted interdigital electrodes'1983 4,359,268'Light quantity control apparatus'1982 4,327,971'Electro-optical light modulators, light wavelength multiplex signal transmitting apparatus and light wavelength separating switches utilizing the same'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1983Patents assigned to NIPPON ELECTRIC CO (3)· patent assignee history

1982–1986Based in Tokyo, JP· patent location history

1986Patents assigned to NEC CORP (2)· patent assignee history

1996–1998Patents assigned to TOKIN CORP (3)· patent assignee history

1996Patents assigned to JAPAN BROADCASTING CORP (1)· patent assignee history

1996–1998Based in Sendai, JP· patent location history

2005Patents assigned to NEC TOKIN IWATE LTD (2)· patent assignee history

2005Based in Ryuugasaki, JP· patent location history

2021Based in Kanagawa, JP· patent location history

2021Based in Kyoto-shi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON ELECTRIC CO	3	1982–1983
TOKIN CORP	3	1996–1998
NEC CORP	2	1986
NEC TOKIN IWATE LTD	2	2005
JAPAN BROADCASTING CORP	1	1996

Locations

Location	Patents	Span
Tokyo, JP	5	1982–1986
Sendai, JP	3	1996–1998
Ryuugasaki, JP	2	2005
Kanagawa, JP	1	2021
Kyoto-shi, JP	1	2021