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Inventor

Hironori Fujita

Inventor
Aichi, JP

Overview

17→
Patents
1980–2020
Patent span
Chemistry
Primary field (CPC C)

Patents· 17 as inventor

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

C23Cprimary
C23CCoating metallic material31%
C22CAlloys6%
F02FCylinders, pistons or casings, for combustion engines6%
F16JPistons6%
G01NInvestigating or analysing materials by determining their chemical or physical properties6%
Y10TTechnical subjects covered by former us classification6%
B21FWorking or processing of metal wire3%
B22FWorking metallic powder3%
B23KSoldering or unsoldering3%
C01GCompounds containing metals not covered by subclasses c01d or c01f3%
PatentTitleYear
10,626,991Segment, combination oil ring, and manufacturing method for a segment20209,784,369'Combination oil ring'20176,953,939'Testing apparatus using scanning electron microscope'20056,002,656'Device for inspecting the surface of disc-shaped recording medium'19995,992,255'Control apparatus for hydraulically operated vehicular transmission'19995,977,004'Powder of titanium compounds'19995,632,827'Aluminum alloy and process for producing the same'19975,494,541'Production of aluminum alloy'19964,909,862'Process for ion nitriding aluminum material'19904,818,351'Method for the surface treatment of an iron or iron alloy article'19894,804,445'Method for the surface treatment of an iron or iron alloy article'19894,765,847'Method of treating the surface of iron alloy materials'19884,597,808'Process for ion nitriding aluminum or aluminum alloys'19864,436,560'Process for manufacturing boride dispersion copper alloys'19844,436,559'Process for manufacturing boride dispersion copper alloys'19844,400,224'Method for forming a carbide layer on the surface of a ferrous alloy article or a cemented carbide article'19834,230,751'Treating composition, forming a mixed-carbide layer of Va-Group elements and of chromium on a ferrous-alloy surface and resulting product'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1997Based in Aichi, JP· patent location history
1983–1997Patents assigned to TOYODA CHUO KENKYUSHO KK (10)· patent assignee history
1999–2005Patents assigned to SONY CORP (2)· patent assignee history
1999Patents assigned to HONDA MOTOR CO LTD (1)· patent assignee history
1999–2005Based in Kanagawa, JP· patent location history
1999Based in Tochigi, JP· patent location history
1999Based in Amagasaki, JP· patent location history
2005Patents assigned to JEOL LTD (1)· patent assignee history
2017–2020Patents assigned to TPR CO LTD (2)· patent assignee history
2017–2020Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOYODA CHUO KENKYUSHO KK101983–1997
SONY CORP21999–2005
TPR CO LTD22017–2020
HONDA MOTOR CO LTD11999
JEOL LTD12005
Locations
LocationPatentsSpan
Aichi, JP111980–1997
Tokyo, JP22017–2020
Kanagawa, JP21999–2005
Tochigi, JP11999
Amagasaki, JP11999