Inventor

Masahiro Sawada

Inventor

Yokohama, JP

Overview

1982–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 34 as inventor

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

H04Wprimary

H04WWireless communication networks14%

F04BPositive-displacement machines for liquids8%

C03CChemical composition of glasses, glazes or vitreous enamels5%

Y10TTechnical subjects covered by former us classification5%

H02PControl or regulation of electric motors, electric generators or dynamo-electric converters4%

H04BTransmission4%

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

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds3%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%

F01NGas-flow silencers or exhaust apparatus for machines or engines in general3%

PatentTitleYear

11,041,649Air-conditioning control device and air-conditioning control method2021 9,974,128Light source lighting circuit and turn signal lamp2018 9,326,180'Mobile communication method, mobility management node, packet switch, and mobile station'2016 9,102,566'Reinforced plate glass and method for manufacturing the same'2015 9,061,582'Hydraulic excavator'2015 8,973,353'Exhaust gas post-treatment unit and construction vehicle carrying same'2015 8,871,348'Glass substrate with conductive film for solar cell'2014 8,106,294'Glass composition for dye-sensitized solar cell and material for dye-sensitized solar cell'2012 7,917,158'Method and system for location management and location information providing system'2011 7,643,471'Mobile communication method, mobile communication system, session control device and originating terminal'2010 7,613,143'System and method for controlling network, network controlling apparatus, and mobile terminal used in network control system'2009 7,574,222'Method and system for location management and location information providing system'2009 7,307,967'Mobile communications system and routing management apparatus used in the mobile communications system'2007 7,120,459'Mobility control apparatus, mobile communication terminal and mobile communication system'2006 7,113,784'Method of registering position of mobile communication terminal, general calling method for mobile communication terminal and mobile communication system'2006 7,083,857'Fire-protection glass product with heat shielding characteristic and method for using the same'2006 7,072,654'Location registration method for mobile communication terminals, en bloc paging method for mobile communication terminals, and mobile communication system'2006 7,026,383'Polyamide resin composition and molded article thereof'2006 6,990,340'Communication system, communication method and switching node'2006 6,834,102'System and method for controlling transfer'2004 6,780,963'Molding material for electrical and electronic parts'2004 6,512,924'Mobile communications system'2003 5,009,574'Thrust bearing and shoe lubricator for a swash plate type compressor'1991 5,009,286'Lubricating oil supplying mechanism in swash plate type compressor'1991 4,974,702'Swash plate type compressor with thrust bearing lubricator'1990 4,863,356'Multi-cylinder refrigerant gas compressor with a muffling arrangement'1989 4,781,540'Piston type compressor for air conditioning unit having asymmetric valve mechanism'1988 4,749,340'Piston type compressor with improved suction reed valve stopper'1988 4,710,825'Disc recording system with speed control'1987 4,710,684'Drive circuit for brushless DC motors'1987 4,658,191'Motor rotation control apparatus'1987 4,575,771'Apparatus for superimposing and reproducing still picture signals'1986 4,342,905'Automatic focusing device of a microscope'1982 4,318,886'Automatic HLA typing apparatus'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1987Patents assigned to NIPPON KOGAKU KK (6)· patent assignee history

1982–1987Based in Kawasaki, JP· patent location history

1987–2016Based in Tokyo, JP· patent location history

1988–1991Patents assigned to TOYODA AUTOMATIC LOOM WORKS (5)· patent assignee history

1988–1991Based in Kariya, JP· patent location history

2004–2016Patents assigned to NTT DOCOMO INC (11)· patent assignee history

2004–2011Based in Yokohama, JP· patent location history

2006–2015Patents assigned to NIPPON ELECTRIC GLASS CO (4)· patent assignee history

2012–2015Based in Otsu, JP· patent location history

2015Patents assigned to KOMATSU MFG CO LTD (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NTT DOCOMO INC	11	2004–2016
NIPPON KOGAKU KK	6	1982–1987
TOYODA AUTOMATIC LOOM WORKS	5	1988–1991
NIPPON ELECTRIC GLASS CO	4	2006–2015
KOMATSU MFG CO LTD	2	2015

Locations

Location	Patents	Span
Yokohama, JP	8	2004–2011
Kariya, JP	6	1988–1991
Kawasaki, JP	5	1982–1987
Tokyo, JP	2	1987–2016
Otsu, JP	2	2012–2015