Inventor

Masafumi Watari

Inventor

Saitama, JP

Overview

7→

Patents

1980–2013

Patent span

Physics

Primary field (CPC G)

Patents· 7 as inventor

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

G02Bprimary

G02BOptical elements, systems or apparatus25%

H04LTransmission of digital information, e.g. telegraphic communication17%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%

C03BManufacture, shaping, or supplementary processes8%

C03CChemical composition of glasses, glazes or vitreous enamels8%

C30BSingle-crystal growth8%

G01TMeasurement of nuclear or x-radiation8%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein8%

PatentTitleYear

8,395,999'Real-time detection of failed inter-node link in network'2013 7,948,997'BGP route evaluation method and device therefor'2011 4,812,016'Antireflection film'1989 4,738,497'Antireflection film'1988 4,678,275'Optical fiber for infrared transmission consisting essentially of high purity mixed crystal of thallium bromide and thallium iodide'1987 4,379,621'Image display device utilizing birefringence properties of ferroelectric ceramic material'1983 4,204,119'Method of reading thermoluminescent dosimeter'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1989Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (5)· patent assignee history

1980–1983Based in Moriguchi, JP· patent location history

1987Based in Osaka, JP· patent location history

1988–1989Based in Kadoma, JP· patent location history

2011–2013Patents assigned to KDDI CORP (2)· patent assignee history

2011–2013Based in Saitama, JP· patent location history

2013Patents assigned to ANO SHIGEHIRO (1)· patent assignee history

2013Patents assigned to TACHIBANA ATSUO (1)· patent assignee history

2013Patents assigned to WATARI MASAFUMI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	5	1980–1989
KDDI CORP	2	2011–2013
ANO SHIGEHIRO	1	2013
TACHIBANA ATSUO	1	2013
WATARI MASAFUMIself	1	2013

Locations

Location	Patents	Span
Saitama, JP	2	2011–2013
Kadoma, JP	2	1988–1989
Moriguchi, JP	2	1980–1983
Osaka, JP	1	1987