Patents by Inventor Yasunori Murate
Yasunori Murate 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).
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Patent number: 11339531Abstract: Disclosed is a leather-like sheet having a lightness L* of 35 or less, and including a fiber structure including fiber dyed with a dye composition including C.I. Basic Blue 3 and at least one blue cationic dye other than C.I. Basic Blue 3, and an elastic polymer contained in internal voids of the fiber structure, or the fiber structure. Also disclosed is a leather-like sheet having a lightness L* of 35 or less, and including a fiber structure including fiber dyed with an azo-based blue cationic dye, and an elastic polymer contained in internal voids of the fiber structure, wherein the leather-like sheet or the fiber structure has a color difference (?E), determined when treated for 48 hours under moist and hot conditions of 80° C. and a moisture of 90%, of ?E?2. or the fiber structure.Type: GrantFiled: November 13, 2017Date of Patent: May 24, 2022Assignee: Kuraray Co., Ltd.Inventors: Michinori Fujisawa, Tetsuya Ando, Hiroyuki Hishida, Yasunori Murate
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Patent number: 10982382Abstract: Disclosed is a napped artificial leather dyed with a cationic dye, including: a non-woven fabric of a cationic dyeable polyester fiber having a fineness of 0.07 to 0.9 dtex; and an elastic polymer provided inside the non-woven fabric, wherein the napped artificial leather has L* value?50, a grade of color difference determined in an evaluation of color migration to PVC under a load 0.75 kg/cm at 50° C. for 16 hours, of 4 or more, a tear strength per mm of thickness of 30 N or more, and a peel strength of 3 kg/cm or more.Type: GrantFiled: March 17, 2016Date of Patent: April 20, 2021Assignee: KURARAY CO., LTD.Inventors: Yasunori Murate, Hitoshi Nakatsuka
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Publication number: 20200291571Abstract: Disclosed is an artificial leather base material having a surface with a lightness L* value of ?50 and including a fiber base material that includes cationic dye-dyeable polyester fibers and an elastic polymer, the artificial leather base material being dyed with at least one cationic dye. Also provided is a resin layer-equipped artificial leather, a napped artificial leather, and a shoe that use the artificial leather base material is used. Also provided is a decorating sheet including the artificial leather base material, and a decorative molded body using the same.Type: ApplicationFiled: September 13, 2017Publication date: September 17, 2020Applicant: KURARAY CO., LTD.Inventors: Michinori FUJISAWA, Daisuke MATSUDA, Toshiyuki ITO, Yasunori MURATE, Tetsuya ANDO, Masato WARITA, Naoto NARUMOTO
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Publication number: 20200048828Abstract: A leather-like sheet including: a fiber structure including fibers dyed with a dye containing a blue cationic dye having an azo bond; and an elastic polymer applied into internal voids of the fiber structure, wherein the leather-like sheet further includes a polyhydric phenol derivative having anionic properties, or the fiber structure is disclosed. Also disclosed is a fiber structure including fibers dyed with a dye containing a blue cationic dye having an azo bond, or a leather-like sheet including the fiber structure and an elastic polymer applied into internal voids of the fiber structure, wherein the leather-like sheet has a color difference (?E) before and after a moist heat treatment, determined when subjected to the moist heat treatment at 80° C. and a humidity of 90% for 48 hours, of ?E?2.Type: ApplicationFiled: May 28, 2018Publication date: February 13, 2020Applicant: KURARAY CO., LTD.Inventors: Michinori FUJISAWA, Tetsuya ANDO, Hiroyuki HISHIDA, Yasunori MURATE
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Publication number: 20190323173Abstract: Disclosed is a leather-like sheet having a lightness L* of 35 or less, and including a fiber structure including fiber dyed with a dye composition including C.I. Basic Blue 3 and at least one blue cationic dye other than C.I. Basic Blue 3, and an elastic polymer contained in internal voids of the fiber structure, or the fiber structure. Also disclosed is a leather-like sheet having a lightness L* of 35 or less, and including a fiber structure including fiber dyed with an azo-based blue cationic dye, and an elastic polymer contained in internal voids of the fiber structure, wherein the leather-like sheet or the fiber structure has a color difference (?E), determined when treated for 48 hours under moist and hot conditions of 80° C. and a moisture of 90%, of ?E?2.Type: ApplicationFiled: November 13, 2017Publication date: October 24, 2019Applicant: KURARAY CO., LTD.Inventors: Michinori FUJISAWA, Tetsuya ANDO, Hiroyuki HISHIDA, Yasunori MURATE
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Publication number: 20180066397Abstract: Disclosed is a napped artificial leather dyed with a cationic dye, including: a non-woven fabric of a cationic dyeable polyester fiber having a fineness of 0.07 to 0.9 dtex; and an elastic polymer provided inside the non-woven fabric, wherein the napped artificial leather has L* value?50, a grade of color difference determined in an evaluation of color migration to PVC under a load 0.75 kg/cm at 50° C. for 16 hours, of 4 or more, a tear strength per mm of thickness of 30 N or more, and a peel strength of 3 kg/cm or more.Type: ApplicationFiled: March 17, 2016Publication date: March 8, 2018Applicant: KURARAY CO., LTD.Inventors: Yasunori MURATE, Hitoshi NAKATSUKA
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Publication number: 20170191190Abstract: Disclosed is a polyamide fiber having a degree of orientation equal to or higher than 0.7 and equal to or lower than 0.85. The polyamide fiber is suitably obtained by forming a polyamide component having high moisture absorbency and a specific soluble component into a conjugated fiber under specific fiber formation conditions.Type: ApplicationFiled: May 21, 2015Publication date: July 6, 2017Applicant: KURARAY CO., LTD.Inventors: Hitoshi NAKATSUKA, Shinya KAWAKADO, Takayuki IKEDA, Daisuke OHGA, Yasunori MURATE
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Patent number: 9334609Abstract: A leather-like sheet containing a microfine long-fiber nonwoven fabric containing an entangled web structure made of bundles of microfine long fibers and an elastic polymer impregnated in the microfine long-fiber nonwoven fabric. The leather-like sheet has a machine direction/transverse direction ratio of breaking strength of 1/1 to 1.3/1, an elongation at break in each of the machine direction and the transverse direction of 80% or more, and a machine direction/transverse direction ratio of elongation at break of 1/1 to 1/1.5. The leather-like sheet has a natural dense feeling, a soft hand, a small difference of mechanical properties in the machine direction and the transverse direction, a moderate resistance to elongation and a durable recovery.Type: GrantFiled: August 28, 2008Date of Patent: May 10, 2016Assignee: KURARAY CO., LTD.Inventors: Masaru Makimura, Hidekazu Andoh, Michinori Fujisawa, Yasunori Murate, Yoshiyuki Ando, Yoshiki Nobuto, Norio Makiyama
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Publication number: 20100239817Abstract: A leather-like sheet comprising a microfine long-fiber nonwoven fabric comprising an entangled web structure made of bundles of microfine long fibers and an elastic polymer impregnated in the microfine long-fiber nonwoven fabric. The leather-like sheet has the following features: (1) each of the bundles of microfine long fibers comprises 5 to 70 microfine long fibers having an average single fiber fineness of 0.5 dtex or less; (2) the bundles of microfine long fibers have an average fineness of 3 dtex or less; (3) the entangle web structure comprises superposed webs each comprising the bundles of microfine long fibers; (4) a ratio of the microfine long fibers and the elastic polymer is 70/30 to 40/60 by mass; (5) the elastic polymer is substantially continuous; and (6) a machine direction/transverse direction ratio of breaking strength is 1/1 to 1.Type: ApplicationFiled: August 28, 2008Publication date: September 23, 2010Applicant: KURARAY CO., LTD.Inventors: Masaru Makimura, Hidekazu Andoh, Michinori Fujisawa, Yasunori Murate, Yoshiyuki Ando, Yoshiki Nobuto, Norio Makiyama
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Publication number: 20060121340Abstract: A separator for alkaline batteries exhibits excellent property for holding the alkaline electrolyte, is not degraded even when the separator is used for alkaline batteries using a positive electrode mix containing an agent having a great oxidizing ability for enhancing the discharging property under a great load, maintains the function as the separator even when the separator is exposed to high temperatures for a long time and can be effectively used for alkaline batteries which are used for portable information instruments requiring the excellent discharging property under a great load such as digital cameras.Type: ApplicationFiled: September 5, 2003Publication date: June 8, 2006Applicants: Kuraray Co., Ltd., Matsushita Electric Industrial Co., Ltd.Inventors: Hiroyuki Kawai, Hitoshi Toyoura, Takashi Tatayama, Yasunori Murate, Tomoyasu Sonetaka, Shigeto Noya, Yasuo Mukai