Patents by Inventor Yoshinari Tanaka
Yoshinari Tanaka 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: 20090283207Abstract: A method for manufacturing a disposable worn article of the present invention includes: a first step of applying an adhesive on at least one of a first web and a second web; a second step of sandwiching an elastic member between the first and second webs and combining the first and second webs and the elastic member together, thereby producing a combined web; and a third step of melting a portion of at least one of the first and second webs and a portion of the elastic member, thereby reducing a shrinking force of the elastic member in the melted portion.Type: ApplicationFiled: July 17, 2009Publication date: November 19, 2009Applicant: ZUIKO CORPORATIONInventors: Ikuo Tachibana, Kiyofumi Inoue, Yuzo Ichiura, Yoshinari Tanaka, Masaki Nakakado, Satoshi Tanaka
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Patent number: 7553443Abstract: A metal powder production apparatus includes a supply part for supplying molten metal and a nozzle provided below the supply part. The nozzle is provided with a flow path defined by an inner circumferential surface of the nozzle through which the molten metal supplied from the supply part can pass. The inner circumferential surface of the nozzle has a gradually reducing inner diameter portion whose inner diameter is gradually reduced in a downward direction. The nozzle is further provided with an orifice opened at a bottom end of the flow path and adapted to inject water toward the flow path. The nozzle has a first member having the gradually reducing inner diameter portion and a second member provided below the first member with a space left between the first member and the second member. The orifice is defined by the first member and the second member. A heat absorption body is provided on the first member.Type: GrantFiled: December 19, 2006Date of Patent: June 30, 2009Assignee: Seiko Epson CorporationInventors: Koei Nakabayashi, Mitsutoyo Tanaka, Tokihiro Shimura, Yoshinari Tanaka
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Patent number: 7485254Abstract: A metal powder production apparatus includes a supply part for supplying molten metal and a nozzle having a first member and a second member by which an orifice for injecting water is defined. The first member has a gradually reducing inner diameter portion. A heat insulating layer for cutting off radiant heat emitted from the molten metal is formed on the gradually reducing inner diameter portion of the first member. the nozzle is configured to ensure that the gradually reducing inner diameter portion is prevented, under an action of the heat insulating layer, from being thermally deformed by the radiant heat of the molten metal but a region of the first member near the orifice is thermally deformed in such a direction as to reduce a size of the orifice by absorbing the radiant heat of the molten metal, whereby the orifice can be restrained from being enlarged by the pressure of the water passing through the orifice.Type: GrantFiled: December 19, 2006Date of Patent: February 3, 2009Assignee: Seiko Epson CorporationInventors: Koei Nakabayashi, Mitsutoyo Tanaka, Tokihiro Shimura, Yoshinari Tanaka
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Patent number: 7368078Abstract: A metal powder production apparatus includes a supply part for supplying molten metal and a nozzle provided below the supply part. The nozzle is provided with a flow path through which the molten metal supplied from the supply part can pass, the flow path having a gradually reducing inner diameter portion whose inner diameter is gradually reduced in a downward direction. The nozzle is further provided with an orifice opened at a bottom end of the flow path and adapted to inject fluid toward the flow path. The nozzle has a first member and a second member provided below the first member with a space left between the first member and the second member, wherein the orifice is defined by the first member and the second member. A clamp for restraining the orifice from being enlarged by the pressure of the fluid passing through the orifice is provided on the nozzle.Type: GrantFiled: December 19, 2006Date of Patent: May 6, 2008Assignee: Seiko Epson CorporationInventors: Koei Nakabayashi, Mitsutoyo Tanaka, Tokihiro Shimura, Yoshinari Tanaka
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Publication number: 20070138312Abstract: A metal powder production apparatus includes a nozzle having a first member and a second member by which an orifice for injecting water is defined. A first groove portion and a first easy-to-deform portion are formed in the first member and a second groove portion and a second easy-to-deform portion are formed in the second member. The nozzle is configured to ensure that the first member and the second member are deformed by the pressure of the water passing between the first member and the second member, whereby the orifice can be restrained from being enlarged by the pressure of the water passing through the orifice.Type: ApplicationFiled: December 19, 2006Publication date: June 21, 2007Applicant: Seiko Epson CorporationInventors: Koei Nakabayashi, Mitsutoyo Tanaka, Tokihiro Shimura, Yoshinari Tanaka
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Publication number: 20070138712Abstract: A metal powder production apparatus includes a supply part for supplying molten metal and a nozzle having a first member and a second member by which an orifice for injecting water is defined. The first member has a gradually reducing inner diameter portion. A heat insulating layer for cutting off radiant heat emitted from the molten metal is formed on the gradually reducing inner diameter portion of the first member. the nozzle is configured to ensure that the gradually reducing inner diameter portion is prevented, under an action of the heat insulating layer, from being thermally deformed by the radiant heat of the molten metal but a region of the first member near the orifice is thermally deformed in such a direction as to reduce a size of the orifice by absorbing the radiant heat of the molten metal, whereby the orifice can be restrained from being enlarged by the pressure of the water passing through the orifice.Type: ApplicationFiled: December 19, 2006Publication date: June 21, 2007Applicant: Seiko Epson CorporationInventors: Koei Nakabayashi, Mitsutoyo Tanaka, Tokihiro Shimura, Yoshinari Tanaka
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Publication number: 20070138711Abstract: A metal powder production apparatus includes a supply part for supplying molten metal and a nozzle provided below the supply part. The nozzle is provided with a flow path defined by an inner circumferential surface of the nozzle through which the molten metal supplied from the supply part can pass. The inner circumferential surface of the nozzle has a gradually reducing inner diameter portion whose inner diameter is gradually reduced in a downward direction. The nozzle is further provided with an orifice opened at a bottom end of the flow path and adapted to inject water toward the flow path. The nozzle has a first member having the gradually reducing inner diameter portion and a second member provided below the first member with a space left between the first member and the second member. The orifice is defined by the first member and the second member. A heat absorption body is provided on the first member.Type: ApplicationFiled: December 19, 2006Publication date: June 21, 2007Inventors: Koei Nakabayashi, Mitsutoyo Tanaka, Tokihiro Shimura, Yoshinari Tanaka
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Publication number: 20070138713Abstract: A metal powder production apparatus includes a supply part for supplying molten metal and a nozzle provided below the supply part. The nozzle is provided with a flow path through which the molten metal supplied from the supply part can pass, the flow path having a gradually reducing inner diameter portion whose inner diameter is gradually reduced in a downward direction. The nozzle is further provided with an orifice opened at a bottom end of the flow path and adapted to inject fluid toward the flow path. The nozzle has a first member and a second member provided below the first member with a space left between the first member and the second member, wherein the orifice is defined by the first member and the second member. A clamp for restraining the orifice from being enlarged by the pressure of the fluid passing through the orifice is provided on the nozzle.Type: ApplicationFiled: December 19, 2006Publication date: June 21, 2007Inventors: Koei Nakabayashi, Mitsutoyo Tanaka, Tokihiro Shimura, Yoshinari Tanaka
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Publication number: 20060254698Abstract: A method for manufacturing a disposable worn article of the present invention includes: a first step of applying an adhesive on at least one of a first web and a second web; a second step of sandwiching an elastic member between the first and second webs and combining the first and second webs and the elastic member together, thereby producing a combined web; and a third step of melting a portion of at least one of the first and second webs and a portion of the elastic member, thereby reducing a shrinking force of the elastic member in the melted portion.Type: ApplicationFiled: June 10, 2006Publication date: November 16, 2006Applicant: ZUIKO CORPORATIONInventors: Ikuo Tachibana, Kiyofumi Inoue, Yuzo Ichiura, Yoshinari Tanaka, Masaki Nakakado, Satoshi Tanaka
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Publication number: 20040016500Abstract: A method for manufacturing a disposable worn article of the present invention includes: a first step of applying an adhesive on at least one of a first web and a second web; a second step of sandwiching an elastic member between the first and second webs and combining the first and second webs and the elastic member together, thereby producing a combined web; and a third step of melting a portion of at least one of the first and second webs and a portion of the elastic member, thereby reducing a shrinking force of the elastic member in the melted portion.Type: ApplicationFiled: July 18, 2003Publication date: January 29, 2004Inventors: Ikuo Tachibana, Kiyofumi Inoue, Yuzo Ichiura, Yoshinari Tanaka, Masaki Nakakado, Satoshi Tanaka
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Publication number: 20030084767Abstract: An apparatus for manufacturing wearing articles, comprises a supplier (1) for supplying a continuous body (W) having the ability to absorb a liquid; a cutter (2) for cutting the continuous body (W) at a length in the flow direction shorter than the width of the continuous body (W); and a drum (3) for changing the orientation of the cut pieces (N) of the continuous body (W) so that the cut pieces (N) are elongate in the flow direction.Type: ApplicationFiled: October 24, 2002Publication date: May 8, 2003Inventors: Yoshinari Tanaka, Yuzo Ichiura
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Publication number: 20020046802Abstract: A method for manufacturing a disposable worn article of the present invention includes: a first step of applying an adhesive on at least one of a first web and a second web; a second step of sandwiching an elastic member between the first and second webs and combining the first and second webs and the elastic member together, thereby producing a combined web; and a third step of melting a portion of at least one of the first and second webs and a portion of the elastic member, thereby reducing a shrinking force of the elastic member in the melted portion.Type: ApplicationFiled: June 25, 2001Publication date: April 25, 2002Inventors: Ikuo Tachibana, Kiyofumi Inoue, Yuzo Ichiura, Yoshinari Tanaka, Masaki Nakakado, Satoshi Tanaka
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Patent number: 6254661Abstract: An atomizing method for producing metal powder, including splitting molten metal in the vicinity of an exit of a nozzle by introducing the molten metal into a center of the nozzle, wherein gas is flowing through the nozzle. The split molten metal is then further split into fine particles by liquid ejected in an inverse cone shaped flow from a slit surrounding a lower side of the nozzle. The resulting powder is of fine size and spherical or granular shape, and is suitable for metal injection shaping.Type: GrantFiled: April 13, 1998Date of Patent: July 3, 2001Assignee: Pacific Metals Co., Ltd.Inventors: Tohru Takeda, Yoshinari Tanaka, Masami Sasaki, Tokihiro Shimura, Koei Nakabayashi, Hiroyuki Azuma, Hideo Abo, Toshio Takakura, Yoshiyuki Kato
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Patent number: 4640870Abstract: There is provided a laminate structure comprising (A) a layer of saponified product of ethylene-vinyl acetate copolymer and (B) a layer of hydrophobic thermoplastic resin, with (C) a bonding interlayer placed therebetween which comprises a composition of (X) a polymer of ethylene-acrylate ester-ethylenic unsaturated carboxylic acid or anhydride thereof and (Y) a polymer of ethylene-acrylate ester.The laminate is superior in interlaminar adhesion and gas barrier properties, and is suitable for food packaging.Type: GrantFiled: April 30, 1985Date of Patent: February 3, 1987Assignee: Kuraray Co., Ltd.Inventors: Toshiyuki Akazawa, Yoshinari Tanaka, Takuji Okaya
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Patent number: 4636551Abstract: There is provided a coating material made of a saponification product of a modified ethylene-vinyl acetate copolymer containing a cross-linkable olefinically unsaturated monomer. The saponification product is characterized by its intrinsic viscosity not greater than 0.7 dl/g which is measured at 20.degree. C. using phenol containing 15 wt % of water as a solvent. This polymer is readily soluble in solvents, and the resulting solution can have concentration as high as 20 to 50 wt % and provide coating film which is as strong as that obtained from the conventional EVOH having a high degree of polymerization.Type: GrantFiled: May 29, 1985Date of Patent: January 13, 1987Assignee: Kuraray Co, Ltd.Inventors: Takuji Okaya, Yoshinari Tanaka, Kiyoshi Yonezu, Akimasa Aoyama, Takeshi Moritani
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Patent number: 4619849Abstract: A multi-layered packaging container superior in crack resistance, said container being made up of an outer layer of thermoplastic resin and an inner layer of saponified product of ethylene-vinyl acetate copolymer characterized in that the ethylene content is 25 to 60 mole %, the degree of saponification of the vinyl acetate component is higher than 96 mole %, the melt viscosity index is lower than 1, the specific gravity (d) is in the range specified by the formula (1) below, and Y.sub.1 and Y.sub.2 are in the range specified by the formula (2) below:1.274-4.4.times.10.sup.-3 X<d<1.332-4.4.times.10.sup.-3 X (1).vertline.Y.sub.1 -Y.sub.2 .vertline..ltoreq.1 (2)where d is the specific gravity of EVOH resin at 25.degree. C., X is the ethylene content (mole %) of EVOH resin, and Y.sub.1 and Y.sub.2 are the melt viscosity indices of the thermoplastic resin and the saponified product of ethylene-vinyl acetate copolymer, respectively.Type: GrantFiled: August 30, 1984Date of Patent: October 28, 1986Assignee: Kuraray Co., Ltd.Inventors: Haruyoshi Anzawa, Kenji Satoh, Yoshinari Tanaka, Takuji Okaya
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Saponified products of silicon-containing ethylene-vinyl acetate copolymer as melt molding materials
Patent number: 4576988Abstract: A melt molding material which comprises a saponified product of a silicon-containing ethylene-vinyl acetate copolymer. When this melt molding material is formed into a sheet, said sheet is excellent in extensibility and thus suitable for deep forming. The decrease in gas barrier properties is small even under high moisture conditions, and its stress cracking resistance is excellent.Type: GrantFiled: December 3, 1984Date of Patent: March 18, 1986Assignee: Kuraray Co., Ltd.Inventors: Yoshinari Tanaka, Akimasa Aoyama, Takeshi Moritani, Kenji Satoh, Takuji Okaya -
Patent number: 4308189Abstract: Cationic emulsions are obtained by the emulsion polymerization or copolymerization of ethylenically unsaturated monomers such as vinyl acetate, etc. in the presence of a cationic group-modified polyvinyl alcohol (PVA). Typical cationic group-modified PVA are the modified PVA's which contain a copolymeric unit having one of the following formulas: ##STR1## wherein R.sup.1 is H or lower alkyl; B is ##STR2## R.sup.2, R.sup.3 and R.sup.4 are each lower alkyl (substituted or unsubstituted) and X is an anion forming a salt with the ammonium N; and A is an inert bivalent organic group linking the N atom in B to the N atom in the amide group; ##STR3## wherein, in formulas (II) and (III), R.sup.5, R.sup.6 and R.sup.7 are each H, lower alkyl or phenyl; R.sup.8 is lower alkyl; and Y is an anion forming a salt with the imidazolinium N atom. Particularly desirable are the cationic group-modified PVA's containing the copolymeric unit (I) wherein A is ##STR4## R.sup.2, R.sup.3 and R.sup.Type: GrantFiled: September 29, 1980Date of Patent: December 29, 1981Assignee: Kuraray Company, LimitedInventors: Tohei Moritani, Takeshi Moritani, Junnosuke Yamauchi, Yoshinari Tanaka, Makoto Shiraishi