| Patent | Date |
|---|
High-strength steel material having excellent fatigue properties
Grant 10,385,430 - Oura , et al. A | 2019-08-20 |
High-strength Steel Material Having Excellent Fatigue Properties
App 20180216214 - OURA; Hiroshi ; et al. | 2018-08-02 |
High carbon steel wire rod having excellent drawability
Grant 9,994,940 - Oura , et al. June 12, 2 | 2018-06-12 |
High-strength spring steel wire with excellent hydrogen embrittlement resistance, manufacturing process therefor, and high-strength spring
Grant 9,970,072 - Takeda , et al. May 15, 2 | 2018-05-15 |
Cold formable spring steel wire excellent in cold cutting capability and fatigue properties and manufacturing process thereof
Grant 9,611,523 - Yoshihara April 4, 2 | 2017-04-04 |
High-strength Spring Steel
App 20170022580 - NAGAMATSU; Sayaka ; et al. | 2017-01-26 |
High-strength steel wire material exhibiting excellent cold-drawing properties, and high-strength steel wire
Grant 9,540,718 - Ishida , et al. January 10, 2 | 2017-01-10 |
Coil Spring, And Method For Manufacturing Same
App 20160160306 - YAMAMOTO; Fumio ; et al. | 2016-06-09 |
High-strength Steel Wire Material Exhibiting Excellent Cold-drawing Properties, And High-strength Steel Wire
App 20160010196 - ISHIDA; Tomonobu ; et al. | 2016-01-14 |
High-strength Steel Wire Material Exhibiting Excellent Cold-drawing Properties, And High-strength Steel Wire
App 20160002755 - ISHIDA; Tomonobu ; et al. | 2016-01-07 |
High-strength Spring Steel Wire With Excellent Hydrogen Embrittlement Resistance, Manufacturing Process Therefor, And High-strength Spring
App 20150292052 - Takeda; Atsuhiko ; et al. | 2015-10-15 |
High-carbon steel wire excellent in wire drawability and fatigue property after wiredrawing
Grant 9,121,080 - Oura , et al. September 1, 2 | 2015-09-01 |
Steel wire rod for high-strength spring excellent in wire drawability, manufacturing method therefor, and high-strength spring
Grant 9,097,306 - Ishida , et al. August 4, 2 | 2015-08-04 |
High Strength Steel Wire For Spring Excellent In Coiling Performance And Hydrogen Embrittlement Resistance And Method For Manufacturing Same
App 20150101715 - Takeda; Atsuhiko ; et al. | 2015-04-16 |
Spring steel with excellent resistance to hydrogen embrittlement and steel wire and spring obtained from the steel
Grant 8,557,061 - Yoshihara October 15, 2 | 2013-10-15 |
High Carbon Steel Wire Rod Having Excellent Drawability
App 20130216423 - Oura; Hiroshi ; et al. | 2013-08-22 |
Steel Wire Rod For High-strength Spring Excellent In Wire Drawability, Manufacturing Method Therefor, And High-strength Spring
App 20130127100 - Ishida; Tomonobu ; et al. | 2013-05-23 |
Steel wire material for spring and its producing method
Grant 8,382,918 - Yoshihara , et al. February 26, 2 | 2013-02-26 |
High-carbon Steel Wire Excellent In Wire Drawability And Fatigue Property After Wiredrawing
App 20130022491 - Oura; Hiroshi ; et al. | 2013-01-24 |
High-strength Spring Steel
App 20120285585 - Nagamatsu; Sayaka ; et al. | 2012-11-15 |
Spring steel wire excellent in fatigue characteristic and wire drawability
Grant 8,192,562 - Yoshihara June 5, 2 | 2012-06-05 |
Steel Wire Material For Spring And Its Producing Method
App 20110303327 - YOSHIHARA; Nao ; et al. | 2011-12-15 |
Steel wire for cold-formed spring excellent in corrosion resistance and method for producing the same
Grant 8,043,444 - Yoshihara October 25, 2 | 2011-10-25 |
Spring wire rod excelling in fatigue characteristics
Grant 7,901,520 - Yoshihara March 8, 2 | 2011-03-08 |
High-strength steel with excellent unsusceptibility to hydrogen embrittlement
Grant 7,887,924 - Urushihara , et al. February 15, 2 | 2011-02-15 |
Spring produced by a process comprising coiling a hard drawn steel wire excellent in fatigue strength and resistance to setting
Grant 7,763,123 - Suda , et al. July 27, 2 | 2010-07-27 |
Spring Steel Wire Excellent In Fatigue Characteristic And Wire Drawability
App 20100034691 - Yoshihara; Nao | 2010-02-11 |
Steel Wire For Hard Drawn Spring Excellent In Fatigue Strength And Resistance To Settling, And Hard Drawn Spring
App 20090283181 - SUDA; Sumie ; et al. | 2009-11-19 |
Steels for high-strength springs excellent in cold workability and quality stability
Grant 7,618,498 - Kochi , et al. November 17, 2 | 2009-11-17 |
Steel wire for hard drawn spring excellent in fatigue strength and resistance to settling, and hard drawn spring and method of making thereof
Grant 7,597,768 - Suda , et al. October 6, 2 | 2009-10-06 |
High-strength Steel With Excellent Unsusceptibility To Hydrogen Embrittlement
App 20090035602 - Urushihara; Wataru ; et al. | 2009-02-05 |
Spring Wire Rod Excelling In Fatigue Characteristics
App 20090025832 - Yoshihara; Nao | 2009-01-29 |
Steel Wire Material For Spring And Its Producing Method
App 20090020189 - YOSHIHARA; Nao ; et al. | 2009-01-22 |
Steel For Springs, Process Of Manufacture For Spring Using This Steel, And Spring Made From Such Steel
App 20080308195 - Yoshihara; Nao ; et al. | 2008-12-18 |
Cold Formable Spring Steel Wire Excellent In Cold Cutting Capability And Fatigue Properties And Manufacturing Process Thereof
App 20070137741 - Yoshihara; Nao | 2007-06-21 |
Spring Steel Wire Rod Excellent In Pickling Performance
App 20070125455 - YOSHIHARA; Nao ; et al. | 2007-06-07 |
Spring Steel With Excellent Resistance To Hydrogen Embrittlement And Steel Wire And Spring Obtained From The Steel
App 20070095439 - YOSHIHARA; Nao | 2007-05-03 |
Steel Wire For Cold-formed Spring Excellent In Corrosion Resistance And Method For Producing The Same
App 20060225819 - YOSHIHARA; Nao | 2006-10-12 |
Steels for high-strength springs excellent in cold workability and quality stability
App 20060196584 - Kochi; Takuya ; et al. | 2006-09-07 |
Steel wire for hard drawn spring excellent in fatigue strength and resistance to settling, and hard drawn spring
App 20050173028 - Suda, Sumie ; et al. | 2005-08-11 |
Spring steel superior in workability
Grant 6,372,056 - Kuroda , et al. April 16, 2 | 2002-04-16 |
| 