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Hiroyuki Sazawa
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Tsukuba-shi Ibaraki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Epitaxial substrate for field effect transistor
Patent number
10,340,375
Issue date
Jul 2, 2019
Sumitomo Chemical Company, Limited
Masahiko Hata
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor wafer, method of producing semiconductor wafer and el...
Patent number
9,755,040
Issue date
Sep 5, 2017
Sumitomo Chemical Company, Limited
Takeshi Aoki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for producing compound semiconductor crystal, method for pro...
Patent number
9,214,342
Issue date
Dec 15, 2015
Sumitomo Chemical Company, Limited
Hiroyuki Sazawa
C30 - CRYSTAL GROWTH
Information
Patent Grant
Gallium nitride epitaxial crystal, method for production thereof, a...
Patent number
8,350,292
Issue date
Jan 8, 2013
Sumitomo Chemical Company, Limited
Naohiro Nishikawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for manufacturing semiconductor epitaxial crystal substrate
Patent number
7,951,685
Issue date
May 31, 2011
Sumitomo Chemical Company, Limited
Hiroyuki Sazawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Epitaxial substrate for field effect transistor
Patent number
7,750,351
Issue date
Jul 6, 2010
Sumitomo Chemical Company, Limited
Hiroyuki Sazawa
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
SEMICONDUCTOR WAFER AND METHOD OF PRODUCING SEMICONDUCTOR WAFER
Publication number
20160149000
Publication date
May 26, 2016
Sumitomo Chemical Company, Limited
Hiroyuki SAZAWA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR WAFER, METHOD OF PRODUCING SEMICONDUCTOR WAFER AND EL...
Publication number
20160079386
Publication date
Mar 17, 2016
Sumitomo Chemical Company, Limited
Takeshi AOKI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR WAFER AND METHOD OF PRODUCING THE SAME
Publication number
20120292789
Publication date
Nov 22, 2012
Sumitomo Chemical Company, Limited
Hiroyuki SAZAWA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
SEMICONDUCTOR WAFER, ELECTRONIC DEVICE, AND METHOD FOR PRODUCING SE...
Publication number
20120280275
Publication date
Nov 8, 2012
Sumitomo Chemical Company, Limited
Masahiko HATA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
METHOD FOR PRODUCING COMPOUND SEMICONDUCTOR CRYSTAL, METHOD FOR PRO...
Publication number
20120228627
Publication date
Sep 13, 2012
Sumitomo Chemical Company, Limited
Hiroyuki SAZAWA
C30 - CRYSTAL GROWTH
Information
Patent Application
LIGHT EMITTING DEVICE AND METHOD OF PRODUCING LIGHT EMITTING DEVICE
Publication number
20120086044
Publication date
Apr 12, 2012
SUMITOMO CHEMICAL CO., LTD.
Masahiko HATA
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING A SEMICONDUCTOR DE...
Publication number
20110108885
Publication date
May 12, 2011
Sumitomo Chemical Company Limite
Hiroyuki Sazawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING A SEMICONDUCTOR DE...
Publication number
20110042719
Publication date
Feb 24, 2011
SUMITOMO CHEMICAL COMPANY, LIMITED
Hiroyuki Sazawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR FIELD EFFECT TRANSISTOR AND METHOD FOR FABRICATING TH...
Publication number
20110012110
Publication date
Jan 20, 2011
Sumitomo Chemical Company, Limited
Hiroyuki Sazawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR DEVICE, SEMICONDUCTOR DEVICE MANUFACTURING METHOD, HI...
Publication number
20100207137
Publication date
Aug 19, 2010
Sumitomo Chemical Company, Limited
Hiroyuki Sazawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
GALLIUM NITRIDE EPITAXIAL CRYSTAL, METHOD FOR PRODUCTION THEREOF, A...
Publication number
20100117094
Publication date
May 13, 2010
Sumitomo Chemical Company, Limited
Naohiro Nishikawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method for manufacturing semiconductor epitaxial crystal substrate
Publication number
20100084742
Publication date
Apr 8, 2010
Sumitomo Chemical Company Limited
Hiroyuki Sazawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
EPITAXIAL SUBSTRATE FOR FIELD EFFECT TRANSISTOR
Publication number
20100019277
Publication date
Jan 28, 2010
Sumitomo Chemical Company, Limited
Masahiko Hata
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Epitaxial substrate for field effect transistor
Publication number
20070069253
Publication date
Mar 29, 2007
Sumitomo Chemical Company, Limited
Hiroyuki Sazawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
3-5 Group compound semiconductor and semiconductor device
Publication number
20030080331
Publication date
May 1, 2003
Sumitomo Chemical Company, Limited
Yoshinobu Ono
H01 - BASIC ELECTRIC ELEMENTS