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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE	218 GAJEONG-RO YUSEONG-GU DAEJEON 34129 34129

International Classification(s)

• H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....

• 2001 Application Filing Year
• H01L Class
• 12651 Applications Filed
• 6832 Patents Issued To-Date
• 54.01 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Jang, Dong Hoon	Daejeon, KR	19	87
# of filed Patents : 19 Total Citations : 87
Lee, Jung Kee	Daejeon, KR	19	86
# of filed Patents : 19 Total Citations : 86
Park, Chul Soon	Daejeon, KR	60	529
# of filed Patents : 60 Total Citations : 529
Park, Kyung Hyun	Daejeon, KR	66	295
# of filed Patents : 66 Total Citations : 295

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Patent Citation Ranking

• 7 Citation Count
• H01L Class

• 1.35 % this patent is cited more than
• 23 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
June 18, 2002	US,6406932,B2   US6406932B2	GRANTED PATENT AS SECOND PUBLICATION
September 13, 2001	US,20010021213,A1   US20010021213A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 6406932

Fabrication of high power semiconductor lasers with ridge waveguide structure

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Abstract

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A 0.98 .mu.m semiconductor laser of a ridge waveguide (RWG) structure includes: to be lengthen the durability of a semiconductor laser by increasing a catastrophic optical damage (COD) level, a ridge having a fixed width and length so that the strip may stop in the position of 30 .mu.m on the basic of end portion of an output facet along length direction of a resonator; and a non-waveguide region in the end portion of both sides of a resonator.

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Description

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Claims

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Legal Events

 

• STCH2014
• FP2014
• LAPS2014
• REMI2014
• FEPP2009
• FPAY2009
• FPAY2005
• I2002
• P2001
• F2001
• PD1997

Date	Code	Event	Description
Jul 14, 2014	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Jun 18, 2014	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Jun 18, 2014
Jun 18, 2014	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
Jan 24, 2014	REMI	MAINTENANCE FEE REMINDER MAILED
Dec 03, 2009	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Nov 18, 2009	FPAY	FEE PAYMENT	year of fee payment: 8
Nov 28, 2005	FPAY	FEE PAYMENT	year of fee payment: 4
Jun 18, 2002	I	Issuance
Sep 13, 2001	P	Published
Apr 12, 2001	F	Filing
Sep 29, 1997	PD	Priority Date