Inventor

Kunio Hayashi

Inventor

Tokyo, JP

Overview

1979–2020

Patent span

Chemistry

Primary field (CPC C)

Patents· 36 as inventor

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

C21Dprimary

C21DModifying the physical structure of ferrous metals23%

C22CAlloys23%

C23CCoating metallic material13%

Y10TTechnical subjects covered by former us classification13%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form6%

B21BRolling of metal4%

C25DProcesses for the electrolytic or electrophoretic production of coatings3%

H02KDynamo-electric machines3%

B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material2%

B62DMotor vehicles2%

PatentTitleYear

10,876,181Cold-rolled steel sheet and method of manufacturing same2020 10,787,727Steel sheet2020 10,718,044Hot-dip galvanized steel sheet2020 10,501,832Plated steel sheet2019 10,350,701Method of spot welding2019 10,266,928Method for producing a cold-rolled steel sheet2019 10,253,384Cold-rolled steel sheet, plated steel sheet, and method for manufacturing the same2019 10,167,539Hot-rolled steel sheet and method for producing same2019 10,106,873Hot-rolled steel sheet and manufacturing method for same2018 10,060,006High-strength cold-rolled steel sheet having excellent local deformability2018 10,030,280Steel sheet and method for manufacturing steel sheet2018 9,988,697High-strength hot-rolled steel sheet having excellent local deformability and manufacturing method thereof2018 9,896,736'Method for manufacturing hot stamped body having vertical wall and hot stamped body having vertical wall'2018 9,840,751'Method for manufacturing hot stamped body and hot stamped body'2017 9,803,266'High-strength hot-rolled steel sheet and method for producing the same'2017 9,777,353'Hot-rolled steel sheet for nitriding, cold-rolled steel sheet for nitriding excellent in fatigue strength, manufacturing method thereof, and automobile part excellent in fatigue strength using the same'2017 9,719,151'Steel sheet, plated steel sheet, and method for producing the same'2017 9,631,265'Hot-rolled steel sheet and method for producing same'2017 9,598,745'Method for manufacturing hot stamped body and hot stamped body'2017 9,587,319'Hot-rolled steel sheet, cold-rolled steel sheet, galvanized steel sheet, and methods of manufacturing the same'2017 9,567,658'Cold-rolled steel sheet'2017 9,523,134'Method for producing a high strength hot-rolled steel plate exhibiting excellent acid pickling property, chemical conversion processability, fatigue property, stretch flangeability, and resistance to surface deterioration during molding, and having isotropic strength and ductility'2016 9,512,499'Method for manufacturing hot stamped body having vertical wall and hot stamped body having vertical wall'2016 9,347,122'Manufacturing method of a high-strength cold-rolled steel sheet having excellent local deformability'2016 9,273,370'Hot-rolled steel sheet, cold-rolled steel sheet, galvanized steel sheet, and methods of manufacturing the same'2016 9,267,196'Method of producing a hot rolled steel sheet'2016 8,888,933'High-strength steel sheet, hot-dipped steel sheet, and alloy hot-dipped steel sheet that have excellent fatigue, elongation, and collision characteristics, and manufacturing method for said steel sheets'2014 8,852,360'High strength hot-rolled steel plate exhibiting excellent acid pickling property, chemical conversion processability, fatigue property, stretch flangeability, and resistance to surface deterioration during molding, and having isotropic strength and ductility'2014 7,842,142'High strength part and method for producing the same'2010 5,751,085'Axial gap type electric motor with dynamic pressure air bearing'1998 5,724,857'Steering gear apparatus of rack-and-pinion type'1998 5,675,200'Dynamic pressure air bearing type electric motor with air circulating arrangement'1997 5,650,674'Enclosed electric motor with dynamic pressure air bearing'1997 5,596,904'Steering gear apparatus of rack-and-pinion type'1997 4,689,864'Method of making valve sleeves'1987 4,137,674'Method of concentric grinding'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1987Based in Nagoya, JP· patent location history

1997–1998Based in Konan, JP· patent location history

1997–1998Based in Aichi, JP· patent location history

2010–2020Patents assigned to NIPPON STEEL CORP (7)· patent assignee history

2014–2020Patents assigned to NIPPON STEEL & SUMITOMO METAL CORP (27)· patent assignee history

2014–2018Patents assigned to HAYASHI KUNIO (11)· patent assignee history

2014–2018Patents assigned to FUJITA NOBUHIRO (8)· patent assignee history

2014–2020Based in Tokyo, JP· patent location history

2016–2018Patents assigned to OKAMOTO RIKI (6)· patent assignee history

2020Based in Kimitsu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON STEEL & SUMITOMO METAL CORP	27	2014–2020
HAYASHI KUNIOself	11	2014–2018
FUJITA NOBUHIRO	8	2014–2018
NIPPON STEEL CORP	7	2010–2020
OKAMOTO RIKI	6	2016–2018

Locations

Location	Patents	Span
Tokyo, JP	27	2014–2020
Konan, JP	3	1997–1998
Aichi, JP	2	1997–1998
Nagoya, JP	2	1979–1987
Kimitsu, JP	1	2020