| Patent | Date |
|---|
Piercer plug and method of manufacturing the same
Grant 11,331,703 - Hidaka , et al. May 17, 2 | 2022-05-17 |
Piercer plug and method of manufacturing the same
Grant 11,214,855 - Hidaka , et al. January 4, 2 | 2022-01-04 |
Piercer Plug
App 20210101194 - HIDAKA; Yasuyoshi ; et al. | 2021-04-08 |
Method of manufacturing piercer plug
Grant 10,888,906 - Hidaka , et al. January 12, 2 | 2021-01-12 |
Piercer Plug and Method of Manufacturing the Same
App 20200263282 - Hidaka; Yasuyoshi ; et al. | 2020-08-20 |
Piercing plug and manufacturing method of piercing plug
Grant 10,300,513 - Tatebayashi , et al. | 2019-05-28 |
Method of Manufacturing Piercer Plug
App 20190151917 - Hidaka; Yasuyoshi ; et al. | 2019-05-23 |
Piercer Plug and Method of Manufacturing the Same
App 20180354008 - Hidaka; Yasuyoshi ; et al. | 2018-12-13 |
Piercing plug
Grant 10,150,147 - Nosaka , et al. Dec | 2018-12-11 |
Plug and Method of Manufacturing the Same
App 20180281037 - Higashida; Yasuto ; et al. | 2018-10-04 |
Method for producing plug for piercing-rolling
Grant 9,914,159 - Yamamoto , et al. March 13, 2 | 2018-03-13 |
Method for Producing Plug
App 20180023179 - Shimoda; Kazuhiro ; et al. | 2018-01-25 |
Equipment system for producing piercing-rolling plug
Grant 9,845,525 - Yamamoto , et al. December 19, 2 | 2017-12-19 |
Method for regenerating a plug for use in a piercing machine
Grant 9,764,366 - Higashida , et al. September 19, 2 | 2017-09-19 |
Cr-containing austenitic alloy and method for producing the same
Grant 9,695,486 - Masaki , et al. July 4, 2 | 2017-07-04 |
Seamless steel pipe for line pipe
Grant 9,651,175 - Arai , et al. May 16, 2 | 2017-05-16 |
Chromium-containing austenitic alloy
Grant 9,493,860 - Kanzaki , et al. November 15, 2 | 2016-11-15 |
Seamless Steel Pipe For Line Pipe And Method For Producing The Same
App 20160161028 - ARAI; Yuji ; et al. | 2016-06-09 |
Plug for hot tube-making
Grant 9,352,370 - Higashida , et al. May 31, 2 | 2016-05-31 |
Plug used in piercing machine
Grant 9,333,544 - Hidaka , et al. May 10, 2 | 2016-05-10 |
Piercing Plug And Manufacturing Method Of Piercing Plug
App 20160053358 - TATEBAYASHI; Yosuke ; et al. | 2016-02-25 |
Cr-CONTAINING AUSTENITIC ALLOY AND METHOD FOR PRODUCING THE SAME
App 20150322560 - MASAKI; Yasuhiro ; et al. | 2015-11-12 |
Piercing Plug
App 20150321233 - NOSAKA; Atsushi ; et al. | 2015-11-12 |
Plug For Hot Tube-making
App 20150258591 - Higashida; Yasuto ; et al. | 2015-09-17 |
Method For Producing Plug For Piercing-rolling
App 20150184276 - Saitou; Kenichi ; et al. | 2015-07-02 |
Plug For Use In Piercing Machine And Regenerating Method Of Plug
App 20150140208 - Higashida; Yasuto ; et al. | 2015-05-21 |
Method For Producing Plug For Piercing-rolling
App 20150135513 - Yamamoto; Tomohiro ; et al. | 2015-05-21 |
Method Of Producing Plug For Piercing-rolling
App 20150132501 - Higashida; Yasuto ; et al. | 2015-05-14 |
Method For Producing A Plug For Hot Tube-making
App 20150125630 - Hidaka; Yasuyoshi ; et al. | 2015-05-07 |
Plug Used In Piercing Machine
App 20150075243 - Hidaka; Yasuyoshi ; et al. | 2015-03-19 |
Equipment System For Producing Piercing-rolling Plug
App 20150075241 - Yamamoto; Tomohiro ; et al. | 2015-03-19 |
Case Hardening Steel Material
App 20150064454 - Kanzaki; Manabu ; et al. | 2015-03-05 |
Lubricant composition for hot metal working and method of hot metal working using the same
Grant 8,863,564 - Shimoda , et al. October 21, 2 | 2014-10-21 |
Antioxidant agent and process for producing metallic material
Grant 8,846,152 - Shimoda , et al. September 30, 2 | 2014-09-30 |
Antioxidant agent and process for producing metallic material
Grant 8,815,347 - Shimoda , et al. August 26, 2 | 2014-08-26 |
Method for producing duplex stainless steel seamless pipe
Grant 8,613,817 - Hirase , et al. December 24, 2 | 2013-12-24 |
Plug, piercing-rolling mill, and method of producing seamless tube by using the same
Grant 8,544,306 - Higashida , et al. October 1, 2 | 2013-10-01 |
Antioxidant Agent And Process For Producing Metallic Material
App 20130202803 - Shimoda; Kazuhiro ; et al. | 2013-08-08 |
Production method of seamless pipe or tube, and oxidizing gas supply unit
Grant 8,464,568 - Nakaike , et al. June 18, 2 | 2013-06-18 |
Mandrel Bar Cleaning Facility
App 20130118527 - Nakaike; Kouji ; et al. | 2013-05-16 |
Antioxidant Agent, Process For Producing Antioxidant Agent, And Process For Producing Metallic Material
App 20130115376 - Shimoda; Kazuhiro ; et al. | 2013-05-09 |
Process for producing seamless stainless steel pipe
Grant 8,307,688 - Hidaka , et al. November 13, 2 | 2012-11-13 |
Plug, Piercing-Rolling Mill, and Method of Producing Seamless Tube by Using the Same
App 20120210761 - Higashida; Yasuto ; et al. | 2012-08-23 |
Piercing and rolling plug, method of regenerating such piercing and rolling plug, and equipment line for regenerating such piercing and rolling plug
Grant 8,082,768 - Hidaka , et al. December 27, 2 | 2011-12-27 |
Mandrel bar for high-alloy rolling, method for surface treating a mandrel bar, method for producing mandrel bar, and method for operating seamless pipe mill
Grant 8,065,901 - Iida , et al. November 29, 2 | 2011-11-29 |
Method of manufacturing plug used to pierce and roll metal material, method of manufacturing metal pipe and plug used to pierce and roll metal material
Grant 8,065,900 - Hidaka , et al. November 29, 2 | 2011-11-29 |
Process for producing stainless steel pipe
Grant 8,047,039 - Hidaka , et al. November 1, 2 | 2011-11-01 |
Production Method of Seamless Pipe or Tube, and Oxidizing Gas Supply Unit
App 20110239720 - Nakaike; Kouji ; et al. | 2011-10-06 |
Mandrel Bar Cleaning Facility
App 20100269868 - Nakaike; Kouji ; et al. | 2010-10-28 |
Piercing and Rolling Plug, Method of Regenerating Such Piercing and Rolling Plug, and Equipment Line for Regenerating Such Piercing and Rolling Plug
App 20100050723 - Hidaka; Yasuyoshi ; et al. | 2010-03-04 |
Method Of Manufacturing Plug Used To Pierce And Roll Metal Material, Method Of Manufacturing Metal Pipe And Plug Used To Pierce And Roll Metal Material
App 20100018281 - HIDAKA; YASUYOSHI ; et al. | 2010-01-28 |
Lubricant Composition For Hot Metal Working And Method Of Hot Metal Working Using The Same
App 20090301151 - Shimoda; Kazuhiro ; et al. | 2009-12-10 |
Method for Producing Duplex Stainless Steel Seamless Pipe
App 20090218014 - Hirase; Naoya ; et al. | 2009-09-03 |
Process For Producing Seamless Stainless Steel Pipe
App 20090084151 - Hidaka; Yasuyoshi ; et al. | 2009-04-02 |
Mandrel Bar for High-Alloy Rolling, Method for Surface Treating a Mandrel Bar, Method for Producing Mandrel Bar, and Method for Operating Seamless Pipe Mill
App 20090071221 - Iida; Sumio ; et al. | 2009-03-19 |
Process For Producing Stainless Steel Pipe
App 20090064749 - HIDAKA; YASUYOSHI ; et al. | 2009-03-12 |
Manufacturing method and cleaning equipment for seamless tube
Grant 7,469,565 - Nakaike , et al. December 30, 2 | 2008-12-30 |
Manufacturing method and cleaning equipment for seamless tube
App 20080083254 - Nakaike; Kouji ; et al. | 2008-04-10 |
Martensitic stainless steel having oxide scale layers
Grant 6,210,806 - Hidaka , et al. April 3, 2 | 2001-04-03 |
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