Inventor

Yoshihiko Yamamoto

Inventor
Amagasaki, JP

Overview

14→
Patents
1977–2017
Patent span
Electricity
Primary field (CPC H)

Patents· 14 as inventor

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

H02Mprimary
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems17%
C01BNon-metallic elements13%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein8%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h108%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%
B23BTurning4%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them4%
G09GArrangements or circuits for control of indicating devices using static means to present variable information4%
H01QAntennas, i.e. radio aerials4%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–2017Patents assigned to MITSUBISHI ELECTRIC CORP (7)· patent assignee history
1977–1993Based in Amagasaki, JP· patent location history
1996Patents assigned to ALPS ELECTRIC CO LTD (1)· patent assignee history
2000Based in Higashimurayama, JP· patent location history
2007–2014Patents assigned to SHARP KK (4)· patent assignee history
2007–2014Based in Yamatokoriyama, JP· patent location history
2010–2011Based in Mihara, JP· patent location history
2014–2017Patents assigned to YAMAMOTO YOSHIHIKO (2)· patent assignee history
2014Patents assigned to CHIKUGAWA HIROSHI (1)· patent assignee history
2017Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI ELECTRIC CORP71977–2017
SHARP KK42007–2014
YAMAMOTO YOSHIHIKOself22014–2017
ALPS ELECTRIC CO LTD11996
CHIKUGAWA HIROSHI12014
Locations
LocationPatentsSpan
Amagasaki, JP51977–1993
Yamatokoriyama, JP22007–2014
Mihara, JP22010–2011
Tokyo, JP12017
Higashimurayama, JP12000