Patents by Inventor Tetsuya Ashida
Tetsuya Ashida 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: 7722052Abstract: A rotation shaft seal to prevent inner leak from increasing along high-pressurization of sealed gas. A staged portion is formed on an outer case, and an end face on an inner side of the staged portion is covered with rubber to form a ring rubber portion of which end face is covered. A rubber end face of the rubber portion and a face on a peripheral edge of a seal element are pressed to each other.Type: GrantFiled: March 20, 2007Date of Patent: May 25, 2010Assignee: Mitsubishi Cable Industries, Ltd.Inventors: Hironori Oida, Tetsuya Ashida
-
Patent number: 7704900Abstract: Provided is an artificial leather sheet that comprises microfine fibers of an inelastic polymer having a mean fiber diameter of at most 5 ?m and an elastic polymer, in which the major portion of the elastic polymer forms a fibrous structure of the entangled nonwoven fabric with the microfine fibers of inelastic polymer throughout the entire layer of the artificial leather sheet in the thickness direction thereof, and a part of the elastic polymer forms a porous layer integrated with the entangled nonwoven fabric structure on at least one face of the artificial leather sheet. The artificial leather sheet does not substantially undergo structure deformation even when repeatedly elongated and deformed. It has good elastic stretchability, and has a soft and dense feel, and its appearance is good not detracting from the drapability of the sheet.Type: GrantFiled: August 30, 2004Date of Patent: April 27, 2010Assignee: Kuraray Co., Ltd.Inventors: Shinichi Yoshimoto, Tetsuya Ashida, Hisao Yoneda
-
Publication number: 20100009792Abstract: Provided are: a sheet-like ball material including a fibrous base material, and an elastic polymer cover layer that is laminated on a surface of the fibrous base material, in which continuous pebbles and discontinuous valleys are formed on a surface of the cover layer, the valleys discontinuously formed are formed at average intervals of 0.5 to 3 mm, the valley has a depth of 50 to 500 ?m, a vertical projected area of each valley is 1 to 5 mm2, and a total area of the vertical projected area of each valley accounts for 3 to 30% relative to a surface area of the elastic polymer cover layer; a ball used for volleyball or beach volleyball including the sheet-like ball material, which is excellent in the controllability for all types of ball plays such as tossing and serving in the smoothness of the attenuation degree in the ball speed of the ball during flight of the ball, and in the design, e.g.Type: ApplicationFiled: July 24, 2007Publication date: January 14, 2010Applicants: Kuraray Co., Ltd., Mikasa CorporationInventors: Tetsuya Ashida, Koki Ogata, Yoshiaki Yasuda, Taketoshi Saeki
-
Publication number: 20090186724Abstract: An object of the invention is to provide a leather-like sheet having excellent water absorbability (sweat absorbability, defined the same hereinafter), providing a natural leather-like touch, and suitably used as a ball covering or a non-slip covering, without lowering surface wear resistance. An aspect of the invention is directed to a leather-like sheet including a base material having an entangled fiber sheet; and a porous elastic resin layer laminated on a surface of the base material. The porous elastic resin layer has a concave-convex surface. The concave-convex surface of the porous elastic resin layer includes a projection having a top surface and a side surface, and a recess having a bottom surface contiguous to the side surface. The top surface of the projection has openings with a diameter from 10 to 500 nm at a density of 1,000 openings/mm2 or more.Type: ApplicationFiled: June 25, 2007Publication date: July 23, 2009Applicant: Kuraray Co., Ltd.Inventors: Tetsuya Ashida, Daisuke Tanaka
-
Publication number: 20090108533Abstract: A rotation shaft seal in which a plate-shaped supporting piece, supporting a seal element from a low-pressure side, has an axis-orthogonal wall portion, a sloped wall portion, and an inner peripheral end flat wall portion at right angles with an axis in cross section cut at a plane including the axis of the rotation shaft.Type: ApplicationFiled: September 12, 2008Publication date: April 30, 2009Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.Inventors: Tetsuya ASHIDA, Hironori Oida
-
Publication number: 20090075018Abstract: A colored polyamide fiber composed of a polyamide resin, a pigment, a coupling agent and a compound represented by the following formula I: R?—CO—NH—R—NH—CO—R???(I) wherein R is an alkylene group having 1 to 4 carbon atoms, and R? and R? are each independently an aliphatic hydrocarbon group having 9 to 18 carbon atoms. The colored polyamide fibers are produced without causing bending and fiber break during the melt spinning even when the raw composition contains the pigment in a high concentration. Since the pigment is uniformly dispersed throughout the colored polyamide fibers, the coloration is deep and the strength is high. The colored polyamide fibers are suitable for the production of artificial leathers.Type: ApplicationFiled: March 1, 2006Publication date: March 19, 2009Applicants: Kuraray Co., Ltd, Dainichiseika Color & Chemicals Mfg. Co. Ltd.Inventors: Tetsuya Ashida, Shinichi Yoshimoto, Hisao Yoneda, Yusuke Takahashi, Kenjiro Tomita, Minoru Hotta
-
Publication number: 20080169613Abstract: In a rotation shaft seal provided with a rubber lip portion, disposed between a housing and a rotation shaft and sliding on the rotation shaft, and a supporting member receiving the lip portion from a low-pressure side, the cross-sectional configuration of the lip portion in free state is a trapezoid diminishing to the end having the maximum thickness portion within an area received by the supporting member.Type: ApplicationFiled: May 2, 2007Publication date: July 17, 2008Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.Inventors: Tetsuya Ashida, Hironori Oida
-
Publication number: 20080067759Abstract: A rotation shaft seal provided with a seal element having an axis-orthogonal wall portion at right angles with an axis, a curved middle portion which is continuing from an inner end of the axis-orthogonal wall portion and curving toward a high-pressure side, and a sealing lip portion continuing from an end of the middle portion. The seal element is provided with a thin wall portion on the middle portion. Further, a supporting member, having a receiving face to contact the thin wall portion from a low-pressure side and support the middle portion, is provided.Type: ApplicationFiled: August 6, 2007Publication date: March 20, 2008Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.Inventors: Tetsuya Ashida, Hironori Oida
-
Publication number: 20070228663Abstract: A rotation shaft seal to prevent inner leak from increasing along high-pressurization of sealed gas. A staged portion is formed on an outer case, and an end face on an inner side of the staged portion is covered with rubber to form a ring rubber portion of which end face is covered. A rubber end face of the rubber portion and a face on a peripheral edge of a seal element are pressed to each other.Type: ApplicationFiled: March 20, 2007Publication date: October 4, 2007Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.Inventors: Hironori Oida, Tetsuya Ashida
-
Patent number: 7083171Abstract: A metal seal of ring as a whole disposed between a first contact flat face portion and a second contact flat face portion parallel to each other. This metal seal has a middle base portion, a first contact convex portion, and a second contact convex portion. The first contact convex portion protrudes from an inner side and the second contact convex portion protrudes from an outer side. The metal seal generates torsional elastic deformation around the middle base portion as a center in an attached and compressed state.Type: GrantFiled: July 13, 2005Date of Patent: August 1, 2006Assignee: Mitsubishi Cable Industries, Ltd.Inventors: Hironori Oida, Tetsuya Ashida, Takayoshi Mitsui
-
Patent number: 7004479Abstract: A metal seal of ring as a whole disposed between a first contact flat face portion and a second contact flat face portion parallel to each other. This metal seal has a middle base portion, a first contact convex portion, and a second contact convex portion. The first contact convex portion protrudes from an inner side and the second contact convex portion protrudes from an outer side. The metal seal generates torsional elastic deformation around the middle base portion as a center in an attached and compressed state.Type: GrantFiled: July 17, 2003Date of Patent: February 28, 2006Assignee: Mitsubishi Cable Industries, Ltd.Inventors: Hironori Oida, Tetsuya Ashida, Takayoshi Mitsui
-
Publication number: 20050242530Abstract: A metal seal of ring as a whole disposed between a first contact flat face portion and a second contact flat face portion parallel to each other. This metal seal has a middle base portion, a first contact convex portion, and a second contact convex portion. The first contact convex portion protrudes from an inner side and the second contact convex portion protrudes from an outer side. The metal seal generates torsional elastic deformation around the middle base portion as a center in an attached and compressed state.Type: ApplicationFiled: July 13, 2005Publication date: November 3, 2005Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.Inventors: Hironori Oida, Tetsuya Ashida, Takayoshi Mitsui
-
Publication number: 20050084719Abstract: Provided is an artificial leather sheet that comprises microfine fibers of an inelastic polymer having a mean fiber diameter of at most 5 ?m and an elastic polymer, in which the major portion of the elastic polymer forms a fibrous structure of the entangled nonwoven fabric with the microfine fibers of inelastic polymer throughout the entire layer of the artificial leather sheet in the thickness direction thereof, and a part of the elastic polymer forms a porous layer integrated with the entangled nonwoven fabric structure on at least one face of the artificial leather sheet. The artificial leather sheet does not substantially undergo structure deformation even when repeatedly elongated and deformed. It has good elastic stretchability, and has a soft and dense feel, and its appearance is good not detracting from the drapability of the sheet.Type: ApplicationFiled: August 30, 2004Publication date: April 21, 2005Applicant: KURARAY CO., LTDInventors: Shinichi Yoshimoto, Tetsuya Ashida, Hisao Yoneda
-
Publication number: 20040242099Abstract: The leather-like sheet of the present invention comprises an entangled nonwoven fabric which is made of a mixture comprising fibers of an elastic polymer and microfine fibers of a inelastic polymer having an average single fiber fineness of 0.1 dtex or less. The fibers of the elastic polymer are partially porous and are partially fuse-bonded to each other. With such fibrous structure, the leather-like sheet substantially sustains repeated extensional deformations without causing permanent change of its original structure and configuration. The leather-like sheet are excellent in elastic stretchability, soft and dense feel and drapeability, and is successfully made into a napped leather-like sheet excellent in appearance, feel, elastic stretchability and drapeability.Type: ApplicationFiled: May 27, 2004Publication date: December 2, 2004Applicant: Kuraray Co., Ltd.Inventors: Shinichi Yoshimoto, Tetsuya Ashida, Hisao Yoneda
-
Patent number: 6773771Abstract: Disclosed is an ink-jet printing sheet which comprises a support and at least one ink-receptive layer provided on the support, wherein at least one of the ink-receptive layer contains silica fine particles having an average primary particle diameter of 20 nm or less and at least one water-soluble polyvalent metal compound.Type: GrantFiled: April 25, 2000Date of Patent: August 10, 2004Assignee: Mitsubishi Paper Mills LimitedInventors: Tetsuya Ashida, Yukio Tokunaga
-
Publication number: 20040012157Abstract: A metal seal of ring as a whole disposed between a first contact flat face portion and a second contact flat face portion parallel to each other. This metal seal has a middle base portion, a first contact convex portion, and a second contact convex portion. The first contact convex portion protrudes from an inner side and the second contact convex portion protrudes from an outer side. The metal seal generates torsional elastic deformation around the middle base portion as a center in an attached and compressed state.Type: ApplicationFiled: July 17, 2003Publication date: January 22, 2004Applicant: MITSUBISHI CABLE INDUSTRIES, LTD.Inventors: Hironori Oida, Tetsuya Ashida, Takayoshi Mitsui
-
Patent number: 6613416Abstract: Disclosed is an ink-jet recording material comprising a polyolefin resin-coated paper support and at least one ink-receptive layer containing fumed silica provided on the support, wherein a surface of the support on which the ink-receptive layer is provided has been subjected to work into slightly rough surface so that 75 degrees specular glossiness according to JIS P 8142 is from 30% to less than 70%.Type: GrantFiled: August 25, 2000Date of Patent: September 2, 2003Assignee: Mitsubishi Paper Mills LimitedInventors: Tetsuya Ashida, Yukio Tokunaga
-
Patent number: 6450036Abstract: The invention is directed to a method and apparatus for diagnosing deterioration of an article having at least a covering layer made from an organic polymer material. The method comprises (i) forming a data group for deterioration diagnosis comprising deterioration diagnostic characteristic values and corresponding ultrasonic wave propagation characteristic values for samples having different material specifications, (ii) propagating an ultrasonic wave through the covering layer of the article to measure an ultrasonic wave propagation characteristic of the covering layer, and (iii) determining a corresponding deterioration diagnostic characteristic from the data group for the ultrasonic wave propagation characteristic of the covering layer.Type: GrantFiled: December 11, 2000Date of Patent: September 17, 2002Assignee: Mitsubishi Cable Industries, Ltd.Inventors: Tetsuya Ashida, Tsuyoshi Ikeda, Junichiro Ikehara, Masanori Fujii, Hiroshi Ishibashi, Yoshiro Habuka, Minoru Okamoto, Eiji Onuma, Hiroshi Kato
-
Patent number: 6403162Abstract: Disclosed are a method for making an ink-jet recording material which comprises adding silica fine particles having an average primary particle diameter of 50 nm or less to a dispersion medium mainly comprising water containing a cationic polymer having a weight average molecular weight of 100,000 or less and mixing to prepare a slurry of silica fine particles; dispersing the slurry of silica fine particles by a dispersing machine to prepare a dispersion of silica fine particles; mixing the dispersion of silica fine particles with at least a hydrophilic binder to prepare a coating solution for forming an ink-receptive layer; and coating the coating solution for forming an ink-receptive layer on a support and drying, a method for preparing a dispersion of silica fine particles and the silica dispersion.Type: GrantFiled: July 5, 2000Date of Patent: June 11, 2002Assignee: Mitsubishi Paper Mills LimitedInventors: Yukio Tokunaga, Tetsuya Ashida, Hajime Sugita
-
Patent number: 6357871Abstract: An ink jet recording medium which comprises a support and a layer comprising fine particles of a thermoplastic organic polymer, formed on at least one side of the support, so that said fine particles of a thermoplastic organic polymer are dissolved or melted after ink jet recording to form a layer wherein said fine particles of a thermoplastic organic polymer are fused to one another, wherein said fine particles of a thermoplastic organic polymer have an average particle size within a range of from 1 to 20 &mgr;m.Type: GrantFiled: November 26, 1999Date of Patent: March 19, 2002Assignee: Mitsubishi Paper Mills LimitedInventors: Tetsuya Ashida, Tomoko Ishimaru, Takao Senga, Sadao Kuriu, Shigehiko Miyamoto