Inventor

Masato Kawai

Inventor

Yokohama, JP

Overview

38→

Patents

1984–2019

Patent span

Performing operations

Primary field (CPC B)

Patents· 38 as inventor

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

B01Dprimary

B01DSeparation27%

Y02CCapture, storage, sequestration or disposal of greenhouse gases [ghg]12%

C01BNon-metallic elements9%

F25JLiquefaction, solidification or separation of gases or gaseous or liquefied gaseous mixtures by pressure and cold treatment or by bringing them into the supercritical state9%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

G01RMeasuring electric variables4%

A61BDiagnosis3%

A61FFilters implantable into blood vessels3%

B41MPrinting, duplicating, marking, or copying processes2%

PatentTitleYear

10,363,172Ophthalmic laser treatment apparatus2019 9,651,302'Purification method and purification apparatus for feed air in cryogenic air separation'2017 9,510,308'LEX signal tracking method, positioning signal receiving method, LEX signal tracking program, positioning signal receiving program, LEX signal tracking device, positioning signal receiving device and mobile terminal'2016 8,690,990'Method of purifying air'2014 8,597,584'Gas purifying process and device'2013 8,366,806'Pre-purification unit of cryogenic air separation unit, hydrocarbon adsorbent, and method of pre-treating feed air'2013 8,361,058'Laser treatment apparatus'2013 7,993,431'Gas purifier apparatus and method for gas purification'2011 7,931,736'Pre-purification unit of cryogenic air separation unit, hydrocarbon adsorbent, and method of pre-treating feed air'2011 7,897,541'Thermosensitive recording medium'2011 7,824,474'Molded Cu-ZSM5 zeolite adsorbent, method of activating the same, temperature swing adsorption apparatus, and method of purifying gas'2010 7,749,306'Method of restarting feed air purifier'2010 7,744,836'Gas purifying process and device'2010 7,393,349'Ophthalmic laser treatment apparatus'2008 7,300,497'Gas separating method'2007 6,955,711'Method and system for separating gas'2005 6,923,844'Gas separation method and device'2005 6,916,358'Adsorbent for separating nitrogen from mixed gas of oxygen and nitrogen'2005 6,824,588'Apparatus and method for purifying air used in cryogenic air separation'2004 6,767,386'Method and apparatus for producing nitrogen'2004 6,752,851'Gas separating and purifying method and its apparatus'2004 6,660,240'Gas processing agent and manufacturing method therefor, gas purification method, gas purifier and gas purification apparatus'2003 6,589,493'Gas purification-treating agents and gas purifying apparatuses'2003 6,471,749'Gas purification method'2002 6,048,509'Gas purifying process and gas purifying apparatus'2000 5,985,003'Oxygen production process by pressure swing adsorption separation'1999 5,704,964'Pressure swing adsorption process'1998 5,701,245'Suspension control system'1997 5,604,176'Heat-sensitive recording material'1997 5,561,641'Underwater detection system for determining carrier frequencies of signals arriving from a wide area'1996 5,144,945'Portable oxygen-enriching air inhaler'1992 5,079,188'Method for the production of a semiconductor device'1992 5,015,272'Adsorptive separation process'1991 4,916,087'Method of manufacturing a semiconductor device by filling and planarizing narrow and wide trenches'1990 4,894,830'LSI chip with scanning circuitry for generating reversals along activated logical paths'1990 4,754,215'Self-diagnosable integrated circuit device capable of testing sequential circuit elements'1988 4,696,006'Method of generating test patterns for logic network devices'1987 4,424,581'Logic circuit with a test capability'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–2010Based in Tokyo, JP· patent location history

1987–1990Patents assigned to NEC CORP (3)· patent assignee history

1991–2004Patents assigned to NIPPON OXYGEN CO LTD (11)· patent assignee history

1992–2003Based in Kanagawa, JP· patent location history

1996–2016Based in Nishinomiya, JP· patent location history

1999–2017Based in Yokohama, JP· patent location history

2005–2017Patents assigned to TAIYO NIPPON SANSO CORP (13)· patent assignee history

2013–2017Patents assigned to KAWAI MASATO (6)· patent assignee history

2013–2017Patents assigned to NAKAMURA MORIMITSU (3)· patent assignee history

2013–2019Based in Okazaki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TAIYO NIPPON SANSO CORP	13	2005–2017
NIPPON OXYGEN CO LTD	11	1991–2004
KAWAI MASATOself	6	2013–2017
NAKAMURA MORIMITSU	3	2013–2017
NEC CORP	3	1987–1990

Locations

Location	Patents	Span
Yokohama, JP	12	1999–2017
Tokyo, JP	11	1984–2010
Okazaki, JP	2	2013–2019
Nishinomiya, JP	2	1996–2016
Kanagawa, JP	2	1992–2003