Patents by Inventor Katsuyuki Yoshikawa
Katsuyuki Yoshikawa 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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Publication number: 20240122806Abstract: The present invention is a container multilayered body (1, 2) that is used to form a container, having an innermost layer (3) made of a cyclic polyolefin, an intermediate layer (4) that is formed so as to be adjacent to the innermost layer (3) and contains a linear low-density polyethylene produced using a single-site catalyst as a main component, and an outer layer (5) made of one of a random polypropylene produced using a single-site catalyst or a polypropylene containing an elastomer.Type: ApplicationFiled: February 22, 2022Publication date: April 18, 2024Inventors: Katsuyuki YOSHIKAWA, Ryosuke MIYAWAKI
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Patent number: 9510996Abstract: Disclosed is a multi-layer tube for medical use, the tube being characterized by having: an outer layer including a resin material that contains high-density polyethylene, and an inner layer including a resin material that contains random polypropylene and/or block polypropylene. Also disclosed a medical infusion bag provided with the multi-layer tube.Type: GrantFiled: July 27, 2011Date of Patent: December 6, 2016Assignee: Hosokawa Yoko Co., Ltd.Inventor: Katsuyuki Yoshikawa
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Publication number: 20160009455Abstract: Disclosed is a bag comprising a bag-shaped container body which is made of a flexible film, and a spout tube which allows the inside of the container body to communicate with the outside the container body, wherein the container body comprises: a cylindrical barrel portion; a first sealing part which is formed at a lower end of the barrel portion by matching and sealing together inner surfaces of the film constituting the container body; and a flat bottom face part including an upper end edge of the first sealing part; wherein the spout tube is interposed between the films that are matched at the first sealing part of the bottom face part; and wherein the first sealing part and the spout tube are disposed in a plane which is approximately parallel to the flat bottom face part.Type: ApplicationFiled: February 26, 2014Publication date: January 14, 2016Inventors: Hiroo NAKANO, Katsuyuki YOSHIKAWA
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Publication number: 20130153448Abstract: The present invention is a medical drug solution container (13) which is formed of a plastic film including seal layers.Type: ApplicationFiled: August 25, 2011Publication date: June 20, 2013Applicant: HOSOKAWA YOKO CO., LTD.Inventor: Katsuyuki Yoshikawa
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Publication number: 20130123739Abstract: Disclosed is a multi-layer tube for medical use, the tube being characterized by having: an outer layer including a resin material that contains high-density polyethylene, and an inner layer including a resin material that contains random polypropylene and/or block polypropylene. Also disclosed a medical infusion bag provided with the multi-layer tube.Type: ApplicationFiled: July 27, 2011Publication date: May 16, 2013Applicant: HOSOKAWA YOKO CO LTDInventor: Katsuyuki Yoshikawa
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Patent number: 8157783Abstract: In order to provide a medical liquid container which allows for no forgetful failure to open the partition wall and can realize simple and easy sterilization of the liquid medicament bag and thereby decrease the production cost, the present invention provides a medical liquid container having a plurality of communicatably partitioned medical liquid-housing chambers and a discharge reserve chamber having formed therein a discharge port for a liquid medicament, the medical liquid container comprising liquidtightly partitioning portion for liquidtightly separating said liquid medicament-housing chambers from each other, and non-liquidtightly partitioning portion for non-liquidtightly separating between at least one of said liquid medicament-housing chambers and said discharge reserve chamber.Type: GrantFiled: May 31, 2005Date of Patent: April 17, 2012Assignee: Hosokawa Yoko Co., Ltd.Inventor: Katsuyuki Yoshikawa
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Publication number: 20100269972Abstract: The present invention has an object to provide an infusion container with multiple chambers, where the peel strength of the boundary portion between one and another of multiple medicament chambers is stabilized irrespective of the construction material and structure of the film. The present invention provides an infusion container 10 with multiple chambers, which is formed from a thermoplastic resin film and has a plurality of medicament chambers 11 and 12 for housing medicaments, wherein the medicaments chambers 11 and 12 are liquid-tightly sealed by a peelable weak seal part 15, the weak seal part 15 is formed to have a plurality of melt-bonding parts different in the melt-bonding strength, the strong melt-bonding part having a largest melt-bonding strength among these melt-bonding parts is dispersed and distributed in the weak seal part 15, and the total occupied area of the strong melt-bonding part is less than 25% of the area of the weak seal part 15.Type: ApplicationFiled: July 2, 2010Publication date: October 28, 2010Applicant: HOSOKAWA YOKO CO., LTD.Inventors: Toshiharu IWASAKI, Masataka KOTANI, Kiyokazu ISHIWATARI, Katsuyuki YOSHIKAWA
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Patent number: 7789852Abstract: To provide a medical liquid container which is free from sealing failure in the seal portion at the peripheral edge of the liquid medicament-housing chamber and also free from deterioration of a medicament housed in a small amount; and a preparation-containing medical liquid container. A secondary liquid medicament-housing chamber 12 is connected to one end of a primary liquid medicament-housing chamber 11. This secondary liquid medicament-housing chamber 12 is unseparably fixed to the primary liquid medicament-housing chamber 11 at a connection part 14. The secondary liquid medicament-housing chamber 12 has a bulge part 15 bulged such that the internal medicament-housing space before housing a second medicament is larger than the volume of the housed second medicament.Type: GrantFiled: November 25, 2005Date of Patent: September 7, 2010Assignee: Hosokawa Yoko Co., Ltd.Inventors: Katsuyuki Yoshikawa, Manabu Nakamura
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Patent number: 7776414Abstract: The present invention has an object to provide an infusion container with multiple chambers, where the peel strength of the boundary portion between one and another of multiple medicament chambers is stabilized irrespective of the construction material and structure of the film. The present invention provides an infusion container 10 with multiple chambers, which is formed from a thermoplastic resin film and has a plurality of medicament chambers 11 and 12 for housing medicaments, wherein the medicaments chambers 11 and 12 are liquid-tightly sealed by a peelable weak seal part 15, the weak seal part 15 is formed to have a plurality of melt-bonding parts different in the melt-bonding strength, the strong melt-bonding part having a largest melt-bonding strength among these melt-bonding parts is dispersed and distributed in the weak seal part 15, and the total occupied area of the strong melt-bonding part is less than 25% of the area of the weak seal part 15.Type: GrantFiled: March 27, 2003Date of Patent: August 17, 2010Assignee: Hosokawa Yoko Co., Ltd.Inventors: Toshiharu Iwasaki, Masataka Kotani, Kiyokazu Ishiwatari, Katsuyuki Yoshikawa
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Publication number: 20080255535Abstract: In order to provide a medical liquid container which allows for no forgetful failure to open the partition wall and can realize simple and easy sterilization of the liquid medicament bag and thereby decrease the production cost, the present invention provides a medical liquid container having a plurality of communicatably partitioned medical liquid-housing chambers and a discharge reserve chamber having formed therein a discharge port for a liquid medicament, the medical liquid container comprising liquidtightly partitioning portion for liquidtightly separating said liquid medicament-housing chambers from each other, and non-liquidtightly partitioning portion for non-liquidtightly separating between at least one of said liquid medicament-housing chambers and said discharge reserve chamber.Type: ApplicationFiled: May 31, 2005Publication date: October 16, 2008Inventor: Katsuyuki Yoshikawa
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Publication number: 20070299391Abstract: To provide a medical liquid container which is free from sealing failure in the seal portion at the peripheral edge of the liquid medicament-housing chamber and also free from deterioration of a medicament housed in a small amount; and a preparation-containing medical liquid container. A secondary liquid medicament-housing chamber 12 is connected to one end of a primary liquid medicament-housing chamber 11. This secondary liquid medicament-housing chamber 12 is unseparably fixed to the primary liquid medicament-housing chamber 11 at a connection part 14. The secondary liquid medicament-housing chamber 12 has a bulge part 15 bulged such that the internal medicament-housing space before housing a second medicament is larger than the volume of the housed second medicament.Type: ApplicationFiled: November 25, 2005Publication date: December 27, 2007Applicant: HOSOKAWA YOKO CO., LTD.Inventors: Katsuyuki Yoshikawa, Manabu Nakamura
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Publication number: 20070122577Abstract: One of the objects of the present invention is to provide a molded article excellent in all of transparency, impact resistance, flexibility and blocking resistance. The present invention provides the polypropylene-base molded article of the present invention is a single-layer or multilayer molded article having a layer comprising a thermoplastic resin composition containing a polypropylene resin composition (A) satisfying the following requirements and an ethylene-base copolymer (B) comprising an ethylene and at least one ?-olefin having 4 or more carbon atoms.Type: ApplicationFiled: September 21, 2004Publication date: May 31, 2007Applicant: Showa Denko Plastic Products Co., Ltd.Inventors: Toshiharu Iwasaki, Masataka Kotani, Katsuyuki Yoshikawa
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Publication number: 20050221034Abstract: The present invention has an object to provide an infusion container with multiple chambers, where the peel strength of the boundary portion between one and another of multiple medicament chambers is stabilized irrespective of the construction material and structure of the film. The present invention provides an infusion container 10 with multiple chambers, which is formed from a thermoplastic resin film and has a plurality of medicament chambers 11 and 12 for housing medicaments, wherein the medicaments chambers 11 and 12 are liquid-tightly sealed by a peelable weak seal part 15, the weak seal part 15 is formed to have a plurality of melt-bonding parts different in the melt-bonding strength, the strong melt-bonding part having a largest melt-bonding strength among these melt-bonding parts is dispersed and distributed in the weak seal part 15, and the total occupied area of the strong melt-bonding part is less than 25% of the area of the weak seal part 15.Type: ApplicationFiled: March 27, 2003Publication date: October 6, 2005Inventors: Toshiharu Iwasaki, Masataka Kotani, Kiyokazu Ishiwatari, Katsuyuki Yoshikawa
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Patent number: 6144690Abstract: The present invention relates to a melting method by which the melting raw materials having a variety of configurations are collectively melted to enable the composition to be adjusted in the melt, and a melting apparatus and tapping method by which tapping is readily controlled, wherein the raw materials are melted by flowing an electric current satisfying the frequency range defined by the equation below using a crucible with an inner diameter of 400 mm or more in melting using a cold crucible induction melting apparatus, the melt being tapped through a tapping nozzle provided at the bottom of the crucible and equipped with a tapping coil wound around the circumference of the nozzle:7.8.times.2.times.log(D).ltoreq.log(F).ltoreq.8.7-2.times.log(D)(wherein F denotes the frequency of a power supply and D denotes the inner diameter (mm) of the crucible).Type: GrantFiled: September 21, 1999Date of Patent: November 7, 2000Assignee: Kabushiki Kaishi Kobe Seiko ShoInventors: Tatsuhiko Kusamichi, Koichi Sakamoto, Hitoshi Ishida, Shingo Ninagawa, Motohiro Nagao, Katsuyuki Yoshikawa
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Patent number: 4822414Abstract: Al-based alloys comprising predetermined amounts of Cr and Ti with the balance being Al and inevitable impurities. The alloys are made by powder metallurgy by which the additive elements are finely dispersed in an Al matrix. The alloys may further comprise up to 5 wt. %. of Fe.Type: GrantFiled: May 18, 1987Date of Patent: April 18, 1989Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Katsuyuki Yoshikawa, Hidetoshi Inoue, Tsukasa Shiomi, Shojiro Oie, Mutsumi Abe