Inventor

Tadashi Nakayama

Inventor

Kitakyushu, JP

Overview

1983–2021

Patent span

Chemistry

Primary field (CPC C)

Patents· 38 as inventor

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

C21Dprimary

C21DModifying the physical structure of ferrous metals28%

A61BDiagnosis10%

G11BInformation storage based on relative movement between record carrier and transducer7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

C22CAlloys5%

B21BRolling of metal3%

C07CAcyclic or carbocyclic compounds3%

C07DHeterocyclic compounds3%

G06FElectric digital data processing3%

H01FMagnets3%

PatentTitleYear

11,047,968Estimating method and estimating device2021 10,726,409Point-of-sale system with movable receipt printer2020 10,708,074Remote maintenance system and relay unit2020 8,901,408'Electronic keyboard musical instrument'2014 8,743,243'Information processing apparatus, information processing method and recording medium for electronic equipment including an electronic camera'2014 7,761,143'Medical telemetry system'2010 7,177,673'Medical telemetry system'2007 6,938,215'Display apparatus and methods, and recording medium for controlling same'2005 6,721,591'Method of deriving standard 12-lead electrocardiogram and electrocardiogram monitoring apparatus'2004 6,269,357'Information processing system, apparatus, method and recording medium for controlling same'2001 5,883,285'Process for production of thioaryl compound'1999 5,782,998'Grain oriented electrical steel sheet having specular surface'1998 5,759,293'Decarburization-annealed steel strip as an intermediate material for grain-oriented electrical steel strip'1998 5,750,763'Process for production of thioaryl compound'1998 5,459,621'Method and apparatus for rotary-head type signal recording and reproducing of digital video/audio signals'1995 5,421,912'Method of producing non-oriented electrical steel sheet having good magnetic properties'1995 5,418,653'Magnetic reproducing apparatus and magnetic recording and reproducing apparatus with editing function'1995 5,415,703'Very thin electrical steel strip having low core loss and high magnetic flux density and a process for producing the same'1995 5,383,468'Cardiac output and right ventricular ejection fraction system'1995 5,355,882'Pulse oximeter'1994 5,327,295'Magnetic reproducing apparatus and magnetic recording apparatus with editing function'1994 5,310,738'Process for producing a hexahydropyridazine-1,2-dicarboxy derivative'1994 5,215,603'Method of primary recrystallization annealing grain-oriented electrical steel strip'1993 5,186,763'Process for production of non-oriented electrical steel sheet having excellent magnetic properties'1993 5,186,762'Process for producing grain-oriented electrical steel sheet having high magnetic flux density'1993 5,179,620'Structure of needle-type lens'1993 5,145,533'Process for producing grain-oriented electrical steel sheet having excellent magnetic characteristic'1992 4,997,493'Process for production of double-oriented electrical steel sheet having high flux density'1991 4,943,675'Anilinopyrimidine derivatives'1990 4,808,642'Chlorine-containing resin molding and material for use therewith'1989 4,623,406'Method for producing a grain-oriented electrical steel sheet having a high magnetic flux density'1986 4,623,407'Method for producing a grain-oriented electrical steel sheet having a high magnetic flux density'1986 4,592,789'Process for producing a grain-oriented electromagnetic steel sheet or strip'1986 4,563,226'Process for producing a grain-oriented electrical steel sheet'1986 4,437,909'Process for producing a grain-oriented silicon steel sheet or strip having excellent magnetic properties'1984 4,437,910'Process for producing grain-oriented electromagnetic steel sheet'1984 4,406,715'Process for producing grain-oriented electromagnetic steel strip'1983 4,394,188'Process for producing ferrite stainless steel sheets having excellent workability'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1998Patents assigned to NIPPON STEEL CORP (17)· patent assignee history

1983–1995Based in Kitakyushu, JP· patent location history

1990–1999Patents assigned to IHARA CHEMICAL IND CO (4)· patent assignee history

1993–2020Patents assigned to NIHON KOHDEN CORP (7)· patent assignee history

1993–2020Based in Tokyo, JP· patent location history

1993–1998Based in Futtsu, JP· patent location history

1994–1995Patents assigned to JAPAN BROADCASTING CORP (3)· patent assignee history

1994–1995Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (3)· patent assignee history

1994–1995Based in Machida, JP· patent location history

2001–2014Based in Chofu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON STEEL CORP	17	1983–1998
NIHON KOHDEN CORP	7	1993–2020
IHARA CHEMICAL IND CO	4	1990–1999
JAPAN BROADCASTING CORP	3	1994–1995
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	3	1994–1995

Locations

Location	Patents	Span
Kitakyushu, JP	11	1983–1995
Tokyo, JP	10	1993–2020
Machida, JP	3	1994–1995
Chofu, JP	2	2001–2014
Futtsu, JP	2	1993–1998