Patents by Inventor Nobukazu Fujii
Nobukazu Fujii has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11685030Abstract: A cylindrical shaft seal packaging sleeve that is inserted in a shaft seal an inner peripheral surface of which slidably contacts with a rotation shaft includes an insertion end portion that is inserted in the shaft seal and a mounting end portion having a larger outer diameter than that of the insertion end portion, a chamfered portion is formed in each of the insertion end portion and the mounting end portion and a step portion having a larger outer diameter than that of the chamfered portion is provided in an axial deeper side than the chamfered portion, and a minimum diameter of the step portion in the insertion end portion is smaller than a minimum diameter of the shaft seal.Type: GrantFiled: June 8, 2022Date of Patent: June 27, 2023Assignee: MITSUBISHI CABLE INDUSTRIES, LTD.Inventor: Nobukazu Fujii
-
Publication number: 20220397198Abstract: A cylindrical shaft seal packaging sleeve that is inserted in a shaft seal an inner peripheral surface of which slidably contacts with a rotation shaft includes an insertion end portion that is inserted in the shaft seal and a mounting end portion having a larger outer diameter than that of the insertion end portion, a chamfered portion is formed in each of the insertion end portion and the mounting end portion and a step portion having a larger outer diameter than that of the chamfered portion is provided in an axial deeper side than the chamfered portion, and a minimum diameter of the step portion in the insertion end portion is smaller than a minimum diameter of the shaft seal.Type: ApplicationFiled: June 8, 2022Publication date: December 15, 2022Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.Inventor: Nobukazu FUJII
-
Publication number: 20220397156Abstract: A bearing integrated seal includes a cylindrical bearing member, an outer member covering at least an outer periphery and one axial direction end of the bearing member, an annular ring-shaped seal member provided such that one surface thereof covers the other axial direction end of the bearing member in an inner surface side of the outer member, and an inner member covering the other surface of the seal member in an opposite side to the one surface to fit the seal member to the bearing member in the inner surface side of the outer member, and the inner member is fixed to the outer member to fix the bearing member and the seal member.Type: ApplicationFiled: June 8, 2022Publication date: December 15, 2022Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.Inventor: Nobukazu FUJII
-
Patent number: 10654104Abstract: A sintered bearing comprises: a bearing sleeve that is formed of a sintered material and has a shaft hole; an annular ring-shaped seal member that is disposed such that one surface thereof comes into contact with the bearing sleeve; and a washer member that comes into contact with the other surface of the seal member on a side opposite to the one surface and is configured for the seal member to engage with the bearing sleeve. The washer member is fixed to the bearing sleeve.Type: GrantFiled: November 16, 2017Date of Patent: May 19, 2020Assignees: Diamet Corporation, MITSUBISHI CABLE INDUSTRIES, LTD.Inventors: Tsuneo Maruyama, Yoshinari Ishii, Nobukazu Fujii, Takayuki Suenaga
-
Publication number: 20190366440Abstract: A sintered bearing comprises: a bearing sleeve that is formed of a sintered material and has a shaft hole; an annular ring-shaped seal member that is disposed such that one surface thereof comes into contact with the bearing sleeve; and a washer member that comes into contact with the other surface of the seal member on a side opposite to the one surface and is configured for the seal member to engage with the bearing sleeve. The washer member is fixed to the bearing sleeve.Type: ApplicationFiled: November 16, 2017Publication date: December 5, 2019Applicants: Diamet Corporation, MITSUBISHI CABLE INDUSTRIES, LTD.Inventors: Tsuneo MARUYAMA, Yoshinari ISHII, Nobukazu FUJII, Takayuki SUENAGA
-
Patent number: 9993997Abstract: The present invention provides a laminate having a high fluorohydrocarbon resistance even when used at a high temperature and suitable for use as a sealing member such as oil sealing, gasket and the like. In a laminate including a metal member, and an adhesive and a hydrogenated nitrile rubber formed article laminated on the metal member, the adhesive is formed from a cured product of a composition containing a resin containing not less than 90 mass % of a novolac type phenol resin having a gelling time, as measured by Japanese Industrial standard (JIS) K 6910:2007 “gelling time C method”, of 50 sec-150 sec at 150° C., and a curing agent.Type: GrantFiled: February 26, 2014Date of Patent: June 12, 2018Assignee: MITSUBISHI CABLE INDUSTRIES, LTD.Inventors: Taishiro Sasaki, Masanori Fujii, Hironori Oida, Nobukazu Fujii
-
Patent number: 9845881Abstract: A shaft seal in which a seal element a seal element and a gasket as held members are held between an outer case and an inner case, and, a protruding portion to locally increase holding pressure on the seal element is disposed on a pressing face for held member of the inner case.Type: GrantFiled: May 18, 2015Date of Patent: December 19, 2017Assignee: MITSUBISHI CABLE INDUSTRIES, LTD.Inventor: Nobukazu Fujii
-
Patent number: 9506567Abstract: A thickness dimension of a peripheral edge of a seal element held by an inner brim wall portion of an outer case and an inner brim wall portion of an inner case is set to be larger than a thickness dimension of a remaining portion of the seal element, and a ring concave groove is formed on the peripheral edge of the seal element.Type: GrantFiled: February 19, 2015Date of Patent: November 29, 2016Assignee: MITSUBISHI CABLE INDUSTRIES, LTD.Inventor: Nobukazu Fujii
-
Publication number: 20160001523Abstract: The present invention provides a laminate having a high fluorohydrocarbon resistance even when used at a high temperature and suitable for use as a sealing member such as oil sealing, gasket and the like. In a laminate including a metal member, and an adhesive and a hydrogenated nitrile rubber formed article laminated on the metal member, the adhesive is formed from a cured product of a composition containing a resin containing not less than 90 mass % of a novolac type phenol resin having a gelling time, as measured by Japanese Industrial standard (JIS) K 6910:2007 “gelling time C method”, of 50 sec-150 sec at 150° C., and a curing agent.Type: ApplicationFiled: February 26, 2014Publication date: January 7, 2016Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.Inventors: Taishiro SASAKI, Masanori FUJII, Hironori OIDA, Nobukazu FUJII
-
Publication number: 20150337963Abstract: A shaft seal in which a seal element a seal element and a gasket as held members are held between an outer case and an inner case, and, a protruding portion to locally increase holding pressure on the seal element is disposed on a pressing face for held member of the inner case.Type: ApplicationFiled: May 18, 2015Publication date: November 26, 2015Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.Inventor: Nobukazu FUJII
-
Publication number: 20150267817Abstract: A thickness dimension of a peripheral edge of a seal element held by an inner brim wall portion of an outer case and an inner brim wall portion of an inner case is set to be larger than a thickness dimension of a remaining portion of the seal element, and a ring concave groove is formed on the peripheral edge of the seal element.Type: ApplicationFiled: February 19, 2015Publication date: September 24, 2015Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.Inventor: Nobukazu FUJII
-
Patent number: 9074688Abstract: In a rotary shaft seal configured such that first and second seal elements (1) and (2) each having a fundamental thickness (T) and each curved through a curved wall portions (5) of a corresponding one of the first and second seal elements (1) and (2) to have a generally J-shaped cross section are arranged so as to be curved in opposite directions along a shaft center (L), a wide circumferential groove (7) is formed in each of opposed surfaces (6) of the respective curved wall portions (5) of the first and second seal elements (1) and (2). Under use conditions (where the seal is inserted), extreme end portions (8) of the first and second seal elements (1) and (2) are in contact with an outer circumferential surface (9a) of a rotary shaft (9) with a peak contact pressure such that a contact width (E) is equal to or less than twice the fundamental thickness (T).Type: GrantFiled: December 24, 2010Date of Patent: July 7, 2015Assignee: Mitsubishi Cable Industries, Ltd.Inventors: Nobukazu Fujii, Hironori Oida
-
Publication number: 20130015624Abstract: In a rotary shaft seal configured such that first and second seal elements (1) and (2) each having a fundamental thickness (T) and each curved through a curved wall portions (5) of a corresponding one of the first and second seal elements (1) and (2) to have a generally J-shaped cross section are arranged so as to be curved in opposite directions along a shaft center (L), a wide circumferential groove (7) is formed in each of opposed surfaces (6) of the respective curved wall portions (5) of the first and second seal elements (1) and (2). Under use conditions (where the seal is inserted), extreme end portions (8) of the first and second seal elements (1) and (2) are in contact with an outer circumferential surface (9a) of a rotary shaft (9) with a peak contact pressure such that a contact width (E) is equal to or less than twice the fundamental thickness (T).Type: ApplicationFiled: December 24, 2010Publication date: January 17, 2013Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.Inventors: Nobukazu Fujii, Hironori Oida
-
Patent number: D733263Type: GrantFiled: January 24, 2013Date of Patent: June 30, 2015Assignee: MITSUBISHI CABLE INDUSTRIES, LTD.Inventors: Nobukazu Fujii, Hironori Oida