Inventor

Masafumi Tanaka

Inventor

Osaka, JP

Overview

32→

Patents

1982–2020

Patent span

Physics

Primary field (CPC G)

Patents· 32 as inventor

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

G06Fprimary

G06FElectric digital data processing11%

G02BOptical elements, systems or apparatus7%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them7%

H04NPictorial communication, e.g. television6%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form5%

F21VFunctional features or details of lighting devices or systems thereof5%

H05KPrinted circuits4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

B29CShaping or joining of plastics2%

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 emitted2%

PatentTitleYear

10,808,152Adhesive composition and adhesive sheet using same2020 10,684,539Lighting device and projection display apparatus2020 10,657,999Plasma CVD device and method of manufacturing magnetic recording medium2020 10,474,019Phosphor disc, phosphor wheel, light source device, projection display apparatus, and manufacturing method of phosphor disc2019 10,394,110Phosphor wheel module, light source device, and projection display apparatus2019 10,377,444Bicycle electric component2019 10,268,111Phosphor wheel, light source device, and projector-type image display apparatus2019 10,162,252Phosphor disc, phosphor wheel, light source device, projection display apparatus, and manufacturing method of phosphor disc2018 9,863,604'Phosphor wheel, light source device, and projection image display apparatus'2018 9,678,248'Antireflective article, image display device, production mold for antireflective article and production method for antireflective article production mold'2017 9,442,222'Antireflective article, image display device, and production mold for antireflective article'2016 9,391,595'Clock signal generation circuit, detection device, sensor, electronic apparatus, and moving object'2016 9,047,043'Electronic apparatus'2015 8,125,771'Electronic apparatus'2012 8,031,463'Electronic apparatus emitting light through a unitary transparent base chassis'2011 7,695,149'Electronic apparatus emitting light through a unitary transparent base chassis'2010 7,444,391'Data terminal, data distribution system, and internet telephone system'2008 7,306,773'Holding material for catalytic converter'2007 6,769,020'Data terminal, data distribution system, and internet telephone system'2004 6,328,513'Vibration floating washer assembly and method of attaching the same to heat insulating plate'2001 6,277,419'Methods of enhancing vitality of plants trees and crops with stevia'2001 5,497,194'Electronic camera for photographing and recording an image and for recording and reproducing a voice'1996 5,359,549'Orthogonal transformation processor for compressing information'1994 5,331,585'Orthogonal transformation processor for compressing information'1994 5,268,853'Orthogonal transformation processor for compressing information'1993 5,216,516'Orthogonal transformation arithmetic unit'1993 5,154,985'Battery with a spare battery'1992 5,142,380'Image data processing apparatus'1992 5,016,207'High-speed digital filter processor including parallel paths for processing data, suitable for use in spatial filter image processing'1991 4,945,011'Storage battery provided with electrolytic solution stirring device'1990 4,626,765'Apparatus for indicating remaining battery capacity'1986 4,327,445'Frequency converter'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1992Patents assigned to JAPAN STORAGE BATTERY CO LTD (3)· patent assignee history

1986–1992Based in Kyoto, JP· patent location history

1991–1996Patents assigned to RICOH KK (6)· patent assignee history

1991–2019Based in Osaka, JP· patent location history

2004–2008Based in Fukuoka, JP· patent location history

2010–2015Patents assigned to SONY CORP (4)· patent assignee history

2010–2015Based in Tochigi, JP· patent location history

2016–2020Patents assigned to DAINIPPON PRINTING CO LTD (3)· patent assignee history

2016–2020Based in Tokyo, JP· patent location history

2018–2020Patents assigned to PANASONIC IP MAN CO LTD (6)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
PANASONIC IP MAN CO LTD	6	2018–2020
RICOH KK	6	1991–1996
SONY CORP	4	2010–2015
DAINIPPON PRINTING CO LTD	3	2016–2020
JAPAN STORAGE BATTERY CO LTD	3	1986–1992

Locations

Location	Patents	Span
Osaka, JP	11	1991–2019
Tokyo, JP	5	2016–2020
Tochigi, JP	4	2010–2015
Kyoto, JP	3	1986–1992
Fukuoka, JP	2	2004–2008