Patents by Inventor Takashi Usami
Takashi Usami 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: 7547403Abstract: To provide a resin material excellent in electric conductivity and judiciously usable in the manufacture of fuel cell separators and so forth. An electroconductive resin composition which comprises 100 parts by weight of a liquid-crystalline polymer (A) and 200 to 500 parts by weight of at least one species of graphite (B) selected from synthetic graphite, flake graphite and amorphous graphite with a fixed carbon content of not less than 95% by weight and an average particle size of 50 to 200 ?m as incorporated in the polymer, the composition resulting from melt-kneading under such conditions that the ratio Q/N, where Q (kg) is the hourly extrusion throughput rate during kneading and N (rpm) is the screw revolution rate, may amount to 0.1 to 1.5, the composition having a volume resistivity of not more than 2×10?2 ?·cm.Type: GrantFiled: June 30, 2004Date of Patent: June 16, 2009Assignee: Polyplastics Co., Ltd.Inventors: Takayuki Miyashita, Takashi Usami
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Publication number: 20080058400Abstract: A skin external preparation includes at least arginine, aspartic acid, isoleucine, leucine, lysine, threonine, glycine, histidine, serine, valine, tyrosine, cysteine, phenylalanine, hydroxyproline and acylglutamine among amino acids, or salts thereof, and a skin external preparation includes: at least arginine, aspartic acid, isoleucine, leucine, lysine and threonine among amino acids, or salts thereof, and a hydrolyzed silk.Type: ApplicationFiled: August 20, 2007Publication date: March 6, 2008Inventors: Chunying Yang, Mario Aoki, Takashi Usami
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Publication number: 20070123633Abstract: To provide a resin material excellent in electric conductivity and judiciously usable in the manufacture of fuel cell separators and so forth. An electroconductive resin composition which comprises 100 parts by weight of a liquid-crystalline polymer (A) and 200 to 500 parts by weight of at least one species of graphite (B) selected from synthetic graphite, flake graphite and amorphous graphite with a fixed carbon content of not less than 95% by weight and an average particle size of 50 to 200 ?m as incorporated in the polymer, the composition resulting from melt-kneading under such conditions that the ratio Q/N, where Q (kg) is the hourly extrusion through put rate during kneading and N (rpm) is the screw revolution rate, may amount to 0.1 to 1.5, the composition having a volume resistivity of not more than 2×10?2 ?·cm.Type: ApplicationFiled: June 30, 2004Publication date: May 31, 2007Inventors: Takayuki Miyashita, Takashi Usami
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Publication number: 20050143501Abstract: A polycarbonate resin molding comprising a polycarbonate resin composition, wherein the polycarbonate resin composition comprises: a polycarbonate resin; at least one of an ultraviolet absorber and a fluorescent whitening agent; a hindered amine; and a hindered phenol, wherein the polycarbonate resin molding has a light transmittance of 0.1% or lower in a wavelength of not longer than 410 nm, and a lamp cover comprising the resin molding.Type: ApplicationFiled: December 21, 2004Publication date: June 30, 2005Inventors: Tadahisa Sato, Takashi Usami
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Patent number: 6866795Abstract: An ultraviolet-absorbing film comprising a fluorescent brightening agent and having a transmission of the rays of 410 nm or less of 90% or less, wherein the fluorescent brightening agent is represented by the following formula (I): wherein R1 and R4 each represents a hydrogen atom, an alkyl group or an alkoxyl group; R2 and R3 each represents an alkyl group; and [A] represents a substituted aryl or substituted ethenyl group.Type: GrantFiled: December 8, 2003Date of Patent: March 15, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Takashi Usami, Teruo Nagano, Tadahisa Sato, Katsuyoshi Yamakawa
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Publication number: 20040113125Abstract: A fluorescent lamp cover which comprises a transparent resin containing a fluorescent brightening agent so as to cut off 90% or more of the rays of 410 nm or less, wherein the fluorescent brightening agent is represented by the following formula (I): 1Type: ApplicationFiled: December 8, 2003Publication date: June 17, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Takashi Usami, Teruo Nagano, Tadahisa Sato, Katsuyoshi Yamakawa
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Patent number: 6682662Abstract: A fluorescent lamp cover which comprises a transparent resin containing a fluorescent brightening agent so as to cut off 90% or more of the rays of 410 nm or less, wherein the fluorescent brightening agent is represented by the following formula (I): wherein R1 and R4 each represents a hydrogen atom, an alkyl group or an alkoxyl group; R2 and R3 each represents an alkyl group; and [A] represents a substituted aryl or substituted ethenyl group.Type: GrantFiled: July 31, 2001Date of Patent: January 27, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Takashi Usami, Teruo Nagano, Tadahisa Sato, Katsuyoshi Yamakawa
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Patent number: 6506539Abstract: A complex of a dye cation and an anionic TCNQ derivative of the formula (I): in which [Dye]+ is a dye cation, L1 is a linking group, R1 is a substituent group, p is an integer of 1-4, and r is an integer of 0-3 under the condition of 1<p+r<4, is favorably employable as a dye compound for preparing a recording layer of CD-R or DVD-R.Type: GrantFiled: April 6, 2001Date of Patent: January 14, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Shinichi Morishima, Takashi Usami
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Publication number: 20020040976Abstract: A fluorescent lamp cover which comprises a transparent resin containing a fluorescent brightening agent so as to cut off 90% or more of the rays of 410 nm or less, wherein the fluorescent brightening agent is represented by the following formula (I): 1Type: ApplicationFiled: July 31, 2001Publication date: April 11, 2002Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Takashi Usami, Teruo Nagano, Tadahisa Sato, Katsuyoshi Yamakawa
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Publication number: 20020025491Abstract: A complex of a dye cation and an anionic TCNQ derivative of the formula (I): 1Type: ApplicationFiled: April 6, 2001Publication date: February 28, 2002Inventors: Shinichi Morishima, Takashi Usami
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Patent number: 5973158Abstract: A heptamethine cyanine compound is represented by the formula (I): in which each of Z.sup.1 and Z.sup.2 is an atomic group that forms a five or six-membered heterocyclic ring or a five or six-membered heterocyclic ring condensed with benzene ring or naphthalene ring; each of R.sup.1 and R.sup.2 is an alkyl group or a substituted alkyl group; each of Y.sup.1 and Y.sup.2 is carboxyl, a sulfonamido group or a sulfamoyl group; X is an anion; and n is 0 or 1. The present specification also discloses a near infrared absorbing ink, a near infrared absorbing sheet and a silver halide photographic material using the heptamethine cyanine compound as a near infrared absorbing dye.Type: GrantFiled: February 17, 1998Date of Patent: October 26, 1999Assignee: Fuji Photo Film Co., Ltd.Inventors: Takashi Usami, Junji Nishigaki
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Patent number: 5424253Abstract: A method for manufacturing an inter-layer insulating film (ex. O.sub.3, TEOS or NSG) with a superior surface flatness is disclosed to solve the problem that the surface of the inter-layer film formed on a certain under-layer substrate reveals roughness due to the influence of the substrate. It is provided a method for manufacturing O.sub.3 TEOS NSG film after doping nitrogen (N) atoms into the under-layer films, or after forming the under-layer films which contain nitrogen (N) atoms therein.Type: GrantFiled: March 4, 1993Date of Patent: June 13, 1995Assignee: Oki Electric Industry Co., Ltd.Inventors: Takashi Usami, Masaki Yoshimaru, Kimiaki Shimokawa
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Patent number: 5238799Abstract: Disclosed is a silver halide photographic material having a hydrophilic colloid layer which contains a dispersion of fine solid grains of at least one dye of formula (I): ##STR1## where R.sub.1 and R.sub.2 each represents an alkyl group, an aryl group, a cyano group or a group of COOR.sub.3, COR.sub.3, CONR.sub.4 R.sub.5, NR.sub.4 R.sub.5, NR.sub.4 COR.sub.3, NR.sub.4 CONR.sub.4 R.sub.5, OR.sub.3, SR.sub.3, SOR.sub.3 or SO.sub.2 R.sub.3 ; R.sub.3 being an alkyl group or an aryl group, and R.sub.4 and R.sub.5 each being a hydrogen atom, an alkyl group or an aryl group, and R.sub.3 and R.sub.4 or R.sub.4 and R.sub.5 being optionally bonded to each other to form a 5-membered or 6-membered ring; L.sub.1, L.sub.2 and L.sub.3 each represents a methine group; and n represents 0 or 1; provided that R.sub.1, R.sub.2, L.sub.1, L.sub.2 and L.sub.3 must not have an ionizable proton-having group or a salt thereof.Type: GrantFiled: September 17, 1992Date of Patent: August 24, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Takashi Usami, Shigeru Ohno, Yoko Idogaki
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Patent number: 5238798Abstract: A silver halide photographic material having on a support a hydrophilic colloid layer containing at least one 2-pyrazoline-5-one oxonol dye represented by formula (I) in the form of a dispersion of fine solid particles thereof; ##STR1## wherein R.sup.1 represents a hydrogen atom, an aryl group, a cyano group, a halogen atom, --COOR.sup.2, --COR.sup.3, --ONR.sup.3 R.sup.4, --OR.sup.2, --NHCOR.sup.3, or --NR.sup.3 R.sup.4 (wherein R.sup.2 represents an alkyl group or an aryl group and R.sup.3 and R.sup.4 each represents a hydrogen atom, an alkyl group, or an aryl group); and L.sup.1, L.sup.2, L.sup.3, L.sup.4, and L.sup.5 each represents a methine group.Type: GrantFiled: April 27, 1992Date of Patent: August 24, 1993Assignee: Fuji Photo Film Co., Ltd.Inventor: Takashi Usami
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Patent number: 4810771Abstract: A heat-resistant polyester having a structure represented by the formula (I):--X--Y).sub.m X--Z).sub.n (I)wherein X represents the structure (A): ##STR1## wherein R represents hydrogen, methyl, or ethyl, Y represents the structure (B): ##STR2## Z represents the structure (C):--OC(CH.sub.2).sub.l CO-- (C)wherein l is an integer of 2 to 6, and m and n are independent repeating numbers, the mole ratio of Y component and Z component in the formula (I) being 1/99 to 99/1 and said polyester having an inherent viscosity (.eta..sub.inh) of at least 0.6 dl/g as determined at a temperature of 30.degree. C. in a solution of 0.5 g of the polyester in 100 ml of a mixture of 60% by weight of phenol and 40% by weight of 1,1,2,2-tetrachloroethane.Type: GrantFiled: June 23, 1988Date of Patent: March 7, 1989Assignees: Nippon Steel Corporation, Nippon Steel Chemical Co., Ltd.Inventors: Takero Teramoto, Takashi Usami
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Patent number: 4571721Abstract: In a composite concentration system of the type utilizing a time division system in which voice signals are digitized and then concentrated in a traffic, there are provided a first subscriber line interface means of a first type which connects subscriber lines directly to subscriber line interface circuits, a second subscriber line interface means of a second type which connects subscriber lines to subscriber line interface circuits via a space division concentration switch and a time division concentration switch connected to the first and second subscriber line interface means via switching interfaces.Type: GrantFiled: September 16, 1982Date of Patent: February 18, 1986Assignees: Nippon Telegraph & Telephone Public Corporation, Nippon Electronic Co., Ltd., Hitachi, Ltd., Oki Electric Industry, Ltd., Fujitsu LimitedInventors: Tadahiko Yasui, Shizuo Ito, Akira Horiki, Hajime Yamada, Takashi Usami