Inventor

Ryo Tamura

Inventor

Yamanashi, JP

Overview

11→

Patents

2006–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 11 as inventor

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

H10Hprimary

H10HInorganic light-emitting semiconductor devices having potential barriers15%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1015%

LOC1311%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof7%

F21VFunctional features or details of lighting devices or systems thereof7%

H01LSemiconductor devices7%

A61KPreparations for medical, dental or toiletry purposes4%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations4%

F21KNon-electric light sources using luminescence4%

F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted4%

PatentTitleYear

10,912,767Anthracycline prodrugs and methods of making and using the same2021 D0834543Light emitting diode2018 D0833989Light emitting diode2018 9,695,782'Abnormality diagnosis device for evaporated-gas purging system'2017 9,512,968'LED module'2016 9,389,142'Leakage diagnosis apparatus for evaporated-gas purge system'2016 9,200,795'Lighting device'2015 9,159,892'LED light source device and manufacturing method for the same'2015 D0727860'Light-emitting diode'2015 7,447,486'Data transmission/reception system, mobile terminal, content server, radio base station device and method for data transmission/reception'2008 7,061,454'Light emitting diode device'2006

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006–2018Patents assigned to CITIZEN ELECTRONICS (7)· patent assignee history

2006–2018Based in Yamanashi, JP· patent location history

2008Based in Tokyo, JP· patent location history

2015–2016Patents assigned to CITIZEN HOLDINGS CO LTD (4)· patent assignee history

2015Patents assigned to CITIZEN ELECTRINOCS CO LTD (1)· patent assignee history

2016–2017Patents assigned to DENSO CORP (2)· patent assignee history

2016–2017Based in Kariya, JP· patent location history

2018Patents assigned to CITIZEN WATCH CO LTD (2)· patent assignee history

2021Based in Boulder, CO, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CITIZEN ELECTRONICS	7	2006–2018
CITIZEN HOLDINGS CO LTD	4	2015–2016
CITIZEN WATCH CO LTD	2	2018
DENSO CORP	2	2016–2017
CITIZEN ELECTRINOCS CO LTD	1	2015

Locations

Location	Patents	Span
Yamanashi, JP	7	2006–2018
Kariya, JP	2	2016–2017
Boulder, CO, US	1	2021
Tokyo, JP	1	2008