Inventor

Isao Masuda

Inventor

Tokyo, JP

Overview

36→

Patents

1976–2017

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 36 as inventor

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

H04Nprimary

H04NPictorial communication, e.g. television13%

F02BInternal-combustion piston engines8%

G11BInformation storage based on relative movement between record carrier and transducer8%

F01NGas-flow silencers or exhaust apparatus for machines or engines in general7%

C03CChemical composition of glasses, glazes or vitreous enamels6%

Y02TClimate change mitigation technologies related to transportation6%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds4%

F02FCylinders, pistons or casings, for combustion engines4%

Y10TTechnical subjects covered by former us classification4%

C08LCompositions of macromolecular compounds3%

PatentTitleYear

9,695,720'Method of regenerating exhaust gas post-processing apparatus in engine-driven generator, and regeneration apparatus'2017 8,447,159'Stream recording apparatus'2013 8,166,999'Gas block device and gas block method'2012 6,714,649'Pay broadcasting system with enhanced security against illegal access to a down loaded program in a subscriber terminal'2004 6,243,469'Information transmission method and apparatus'2001 5,738,184'Muffler for a two-stroke engine'1998 5,440,083'Exhaust muffler for internal combustion engine'1995 5,373,119'Exhaust muffler for internal combustion engine'1994 5,303,046'Video signal processing apparatus with time base correction and inhibition of horizontal sync signal replacement during vertical flyback'1994 5,211,153'Two-cycle internal combustion gasoline engine cylinder'1993 5,206,467'Muffler with a catalyst'1993 5,151,792'Video signal reproducing apparatus with means for producing a crosstalk eliminated luminance output signal'1992 4,970,769'Method for producing cylinder having scavenging passages for two-cycle internal combustion engine'1990 4,960,194'Centrifugal clutch'1990 4,958,745'Connector tank means for cap for mouth of tank'1990 4,930,467'Internal combustion engine with automatic starter for portable working machine'1990 4,873,946'Two-cycle internal combustion engine'1989 4,871,230'Single mode phosphate laser glass fiber'1989 4,838,116'Crank'1989 4,750,033'Comb filter, chrominance and luminance signal separating circuit for modifying the level-frequency characteristic of the luminance signal'1988 4,731,674'Color video signal processing apparatus for crosstalk elimination'1988 4,726,652'Faraday rotation single-mode optical fiber'1988 4,667,318'Data producing device in a signal reproducing apparatus'1987 4,600,766'Process for producing cross-linked resin from bis(2-oxazoline) and aromatic hydroxy-carboxylic acid'1986 4,596,981'Synchronizing signal detecting circuit in a digital signal transmitting system'1986 4,579,937'Catalytic process for producing cross-linked polyesteramide from bis-oxazoline and dicarboxylic acid'1986 4,561,083'Memory circuit write-in system'1985 4,516,163'Digital information signal recording system'1985 4,509,155'Circuit arrangement for a disk player for reproducing information prerecorded in the form of pits'1985 4,474,942'Cross-linked polyesteramide from bis(2-oxazoline)'1984 4,465,331'Device for preventing radio frequency interference from spark plug'1984 4,403,043'Glass for photoetching mask'1983 4,391,916'Alkali-free glass for photoetching mask'1983 4,360,824'Systems for recording both information and pilot signals directly on recording medium'1982 4,317,109'Pattern recognition system for hand-written characters operating on an on-line real-time basis'1982 3,943,303'Abnormal sound eliminating system in record disc reproducing apparatus'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1987Patents assigned to VICTOR COMPANY OF JAPAN (7)· patent assignee history

1976–1987Based in Sagamihara, JP· patent location history

1983–1989Patents assigned to HOYA CORP (4)· patent assignee history

1983–2004Based in Tokyo, JP· patent location history

1984–1998Patents assigned to KIORITZ CORP (12)· patent assignee history

1984–1986Patents assigned to TAKEDA CHEMICAL INDUSTRIES LTD (3)· patent assignee history

1984–1998Based in Tachikawa, JP· patent location history

1986Based in Shimizu, JP· patent location history

1988–1994Patents assigned to SONY CORP (4)· patent assignee history

2017Based in Niigata, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KIORITZ CORP	12	1984–1998
VICTOR COMPANY OF JAPAN	7	1976–1987
HOYA CORP	4	1983–1989
SONY CORP	4	1988–1994
TAKEDA CHEMICAL INDUSTRIES LTD	3	1984–1986

Locations

Location	Patents	Span
Tokyo, JP	10	1983–2004
Tachikawa, JP	10	1984–1998
Sagamihara, JP	7	1976–1987
Shimizu, JP	2	1986
Niigata, JP	1	2017