Inventor

Tatsuhiko Hiratani

Inventor

Tokyo, JP

Overview

1999–2021

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.

C22Cprimary

C22CAlloys24%

C21DModifying the physical structure of ferrous metals23%

H01FMagnets18%

C23CCoating metallic material12%

H01JElectric discharge tubes or discharge lamps8%

Y10TTechnical subjects covered by former us classification8%

B21BRolling of metal3%

Y02PClimate change mitigation technologies in the production or processing of goods3%

B22FWorking metallic powder2%

PatentTitleYear

11,056,256Non-oriented electrical steel sheet and method of producing same2021 10,760,143High-silicon steel sheet and method of manufacturing the same2020 10,584,406Electrical steel sheet2020 10,102,951Non-oriented electrical steel sheet having excellent magnetic properties2018 9,666,350'Ultrathin electromagnetic steel sheet'2017 8,916,268'Iron powder for dust cores'2014 7,163,592'Steel sheet for tension mask, manufacturing method of steel sheet for tension mask, tension mask and cathode ray tube'2007 7,056,599'Steel sheet for magnetic shields and manufacturing method thereof'2006 6,635,361'Magnetic shielding steel sheet and method for producing the same'2003 6,566,796'Steel sheet for tension mask, making method thereof and tension mask'2003 6,562,150'Steel sheet for heat shrink band and manufacturing method thereof'2003 6,527,876'Silicon steel sheet and method for producing the same'2003 6,416,594'Heat shrink band steel sheet and manufacturing method thereof'2002 6,241,829'Silicon steel sheet and method thereof'2001 6,045,627'Silicon steel sheet and method thereof'2000 5,993,568'Soft magnetic alloy sheet having low residual magnetic flux density'1999 5,902,419'Silicon steel sheet and method thereof'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2003Patents assigned to NIPPON KOKAN KK (9)· patent assignee history

1999–2021Based in Tokyo, JP· patent location history

1999–2003Based in Fukuyama, JP· patent location history

2003–2006Patents assigned to SONY CORP (4)· patent assignee history

2007–2021Patents assigned to JFE STEEL CORP (7)· patent assignee history

2014Patents assigned to HATTORI TAKESHI (1)· patent assignee history

2014Patents assigned to HIRATANI TATSUHIKO (1)· patent assignee history

2014Based in Kurashiki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON KOKAN KK	9	1999–2003
JFE STEEL CORP	7	2007–2021
SONY CORP	4	2003–2006
HATTORI TAKESHI	1	2014
HIRATANI TATSUHIKOself	1	2014

Locations

Location	Patents	Span
Tokyo, JP	11	1999–2021
Fukuyama, JP	5	1999–2003
Kurashiki, JP	1	2014