Patents by Inventor Koichi Nagayasu
Koichi Nagayasu 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: 7070719Abstract: A film employed in a liquid crystal display member is disclosed. The film has film thickness of 20 to 60 ?m and variation in the film thickness within ±3.0 percent of the standard film thickness.Type: GrantFiled: June 23, 2005Date of Patent: July 4, 2006Assignee: Konica CorporationInventors: Noriki Tachibana, Kunio Shimizu, Masahito Takada, Isamu Michihata, Koichi Nagayasu
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Publication number: 20050238820Abstract: A film employed in a liquid crystal display member is disclosed. The film has film thickness of 20 to 60 ?m and variation in the film thickness within ±3.0 percent of the standard film thickness.Type: ApplicationFiled: June 23, 2005Publication date: October 27, 2005Inventors: Noriki Tachibana, Kunio Shimizu, Masahito Takada, Isamu Michihata, Koichi Nagayasu
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Publication number: 20040174474Abstract: A film employed in a liquid crystal display member is disclosed. The film has film thickness of 20 to 60 &mgr;m and variation in the film thickness within ±3.0 percent of the standard film thickness.Type: ApplicationFiled: March 11, 2004Publication date: September 9, 2004Applicant: KONICA CORPORATIONInventors: Noriki Tachibana, Kunio Shimizu, Masahito Takada, Isamu Michihata, Koichi Nagayasu
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Patent number: 6731357Abstract: A film employed in a liquid crystal display member is disclosed. The film has film thickness of 20 to 60 &mgr;m and variation in the film thickness within ±3.0 percent of the standard film thickness.Type: GrantFiled: January 27, 2000Date of Patent: May 4, 2004Assignee: Konica CorporationInventors: Noriki Tachibana, Kunio Shimizu, Masahito Takada, Isamu Michihata, Koichi Nagayasu
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Patent number: 6320042Abstract: A cellulose triacetate film characterized in being comprised of cellulose triacetate which is prepared by employing cotton liter as the raw material, having a value of weight average molecular weight Mw/number average molecular weight Mn of 3.5 to 4.5, or being comprised of cellulose triacetate which is prepared by employing wood pulp as the raw material, having a value of weight average molecular weight Mw/number average molecular weight Mn of 4.0 to 5.0.Type: GrantFiled: February 29, 2000Date of Patent: November 20, 2001Assignee: Konica CorporationInventors: Isamu Michihata, Masahito Takada, Kunio Shimizu, Koichi Nagayasu, Noriki Tachibana
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Patent number: 6068794Abstract: A protective film of a polarizing plate is disclosed in which the protective film comprising a support, and provided on one side of the support, an anti-static layer and a hardened layer in that order, the hardened layer being obtained by hardening a layer containing an ultraviolet ray hardenable resin composition with ultraviolet irradiation, wherein the antistatic layer contains a hydrophobic binder and a compound having a chemical structure represented by formula (I), (II), (III), (IV), (V), (1), (2) or (3).Type: GrantFiled: January 14, 1997Date of Patent: May 30, 2000Assignee: Konica CorporationInventors: Toru Kobayashi, Naoko Morita, Koichi Nagayasu
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Patent number: 6055096Abstract: A protective film of a polarizing plate is disclosed which is made of a resin film containing a UV absorbent and has a change in linear dimensions of -0.06 to 0.06%.Type: GrantFiled: November 29, 1996Date of Patent: April 25, 2000Assignee: Konica CorporationInventors: Isamu Michihata, Koichi Nagayasu, Toru Kobayashi, Chie Kanbe
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Patent number: 6008940Abstract: A protective film for use with a polarizing plate has a support carrying a glare-proof layer. The glare-proof layer is a resin with coarse particles having an average particle size of 0.25 to 10 .mu.m, and fine particles having an average particle size of 0.1 .mu.m or less and a refractive index of 1.40 to 1.60, embedded in it.Type: GrantFiled: February 28, 1997Date of Patent: December 28, 1999Assignee: Konica CorporationInventors: Isamu Michihata, Koichi Nagayasu, Toru Kobayashi, Masaji Nara
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Patent number: 5914073Abstract: A protective film for a polarizing plate comprises a resin film, and provided thereon, a layer comprising a polyol acrylate resin.Type: GrantFiled: July 26, 1996Date of Patent: June 22, 1999Assignee: Konica CorporationInventors: Toru Kobayashi, Naoko Morita, Koichi Nagayasu, Isamu Michihata, Masaji Nara
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Patent number: 5705329Abstract: Disclosed is a silver halide photographic light-sensitive material comprising a support provided thereon, a layer selected from the group consisting of a first layer and a second layer, and a silver halide emulsion layer in this order, wherein said support comprises a syndiotactic styrene polymer or a copolymer thereof, and a first layer comprises a polymer composition composed of a polyester component with a styrene polymer component, and a second layer comprises a diene type polymer.Type: GrantFiled: April 7, 1997Date of Patent: January 6, 1998Assignee: Konica CorporationInventors: Akihisa Nakajima, Koichi Nagayasu
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Patent number: 5614289Abstract: Disclosed is an ID card comprising a support and provided thereon, at least two layers of an image-receiving layer and a protective layer hardened by ultraviolet rays, wherein the ID card comprises a layer adhered to the protective layer, the layer's surface adhered to the protective layer, has the critical surface tension of a surface within the range of 34 to 50 dyne/cm.Type: GrantFiled: August 24, 1994Date of Patent: March 25, 1997Assignee: Konica CorporationInventors: Toru Kobayashi, Koichi Nagayasu
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Patent number: 5318826Abstract: Disclosed is an information recording medium comprising:a base having a first surface and a second surface;a light-sensitive layer provided on said first surface of said base; anda plurality of magnetic layers provided on said second surface of said base, wherein a coercive forces of said magnetic layers are different from each other.An information recording medium according to this invention is capable of recording a variety of information in plural magnetic layers classifying the information by the degree of significance.Type: GrantFiled: June 3, 1992Date of Patent: June 7, 1994Assignee: Konica CorporationInventors: Yoshitaka Yasufuku, Yasuhisa Yamauchi, Koichi Nagayasu
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Patent number: 4594315Abstract: A light-sensitive silver halide photographic element having (a) a cured coated layer on at least one surface of a support material, said cured coated layer having been formed by curing a composition with electron beam radiation, said composition prior to curing comprising (i) a compound having two or more unsaturated double bonds in its molecule which is curable by electron beam irradiation, (ii) an inorganic white pigment and (iii) a coupling agent having two or more different reactive groups in its molecule, one of said reactive groups being chemically reactive with the inorganic white pigment to form a chemical bond therewith and said other reactive group being chemically reactive with said compound (i) to form a chemical bond therewith and (b) at least one layer of silver halide emulsion on said coated layer.Type: GrantFiled: September 6, 1984Date of Patent: June 10, 1986Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toshiaki Shibue, Koichi Nagayasu
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Patent number: 4554175Abstract: Disclosed is a method of producing a support for a photographic paper, which comprises applying primary irradiation of electron beams to at least one coated layer formed on one side or both sides of a substrate and curable by irradiation of electron beams, bringing the surface of said coated layer into contact with a form member and then peeling it from the form member, followed by applying secondary irradiation of electron beams to the coated layer. The primary irradiation is carried out in the manner that the surface of the coated layer may hold shapes substantially corresponding to shapes on the surface of the form member at the stage where the coated layer has been peeled off from the form member.Type: GrantFiled: March 15, 1984Date of Patent: November 19, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toshiaki Shibue, Koichi Nagayasu
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Patent number: 4363871Abstract: A multi-layer light-sensitive photographic material comprising a support and a light-sensitive layer, which have a surface layer which does not adhere even under a high temperature and high humidity conditions when the front surface layer thereof is contacted with the other surface layer and which is hardly subject to scratching and free from the so-called "blooming" phenomenon.The light-sensitive material according to this invention comprises, in at least one of the front and back sides thereof, at least one light-insensitive layer containing a high polymer having at least 20% by weight of a repeating unit represented by the formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a methyl group, and R.sup.2 represents a straight chain alkyl group having 12 to 24 carbon atoms.Type: GrantFiled: April 27, 1981Date of Patent: December 14, 1982Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toshiaki Shibue, Koichi Nagayasu, Tohru Kobayashi, Kouji Tokitou
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Patent number: 4267266Abstract: A photographic film having at least one light-sensitive silver halide emulsion layer on one side of a support and at least one reverse side layer on the other side thereof which comprises, in said reverse side layer, a compound represented by formula [I]: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represent a hydrogen atom or an aliphatic acyl group having from 12 to 24 carbon atoms provided that at least three of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represent an aliphatic acyl group having from 12 to 24 carbon atoms, and a tertiary amine.Type: GrantFiled: August 1, 1979Date of Patent: May 12, 1981Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toshiaki Shibue, Koichi Nagayasu
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Patent number: 4264707Abstract: A photographic material comprising a light sensitive photographic layer and a support having thereon in order a layer containing alumina sol including colloidal particles and an electrolyte and a layer containing a hydrophobic polymer.Type: GrantFiled: October 13, 1978Date of Patent: April 28, 1981Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Takahiro Uozumi, Tohru Kobayashi, Koichi Nagayasu
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Patent number: 4256822Abstract: An electrophotography photosensitive plate having an interfacelayer between a substrate and a photosensitive layer. Said interfacelayer comprises the mono- or co-polymer of the unit components represented by the general formula: ##STR1## In said formula R is a hydrogen atom or a methyl group; A is ##STR2## wherein R.sub.1, R.sub.2 and R.sub.3 each are lower alkyl, phenyl or benzyl groups, and further R.sub.2 and R.sub.3 may be taken together to form a ring, or ##STR3## wherein B is a nonmetallic atom selected from the group consisting of carbon, nitrogen and sulfur atoms, necessary to form a 5-6 membered heterocycle nucleus with the --N.sup.+ .dbd.C--; X.sup.- is an anion; and Y is a substituted or unsubstituted alkylene group.Type: GrantFiled: August 23, 1979Date of Patent: March 17, 1981Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Noriyoshi Tarumi, Akihiko Tamura, Masakazu Kokiso, Toshio Muramatsu, Koichi Nagayasu
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Patent number: 4255515Abstract: A photographic film which comprises (A) a support, having two sides, (B) at least one light-sensitive emulsion layer on one side of said support (A), and, (C) at least one layer containing a compound represented by formula [I]and a hydrophobic polymer (first layer) and at least one layer containing an antistatic agent (second layer), said first and second layers being placed on the other side of said support (A) and said first layer being placed closer to said support (A) than said second layer: ##STR1## wherein, R.sub.1 represents a carboxylic acid residue having from 12 to 24 carbon atoms and R.sub.2, R.sub.3 and R.sub.4 represent independently hydrogen atoms or organic acid residues having from 1 to 24 carbon atoms.Type: GrantFiled: November 13, 1978Date of Patent: March 10, 1981Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toshiaki Shibue, Koichi Nagayasu, Masayoshi Mayama, Masao Ishihara, Naoto Abe
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Patent number: 3988158Abstract: Antistatic and antifoaming agents for use with light sensitive silver halide photographic materials comprised of polymerized pyridyl-type compounds are disclosed.Type: GrantFiled: October 6, 1975Date of Patent: October 26, 1976Assignee: Konishiroku Photo Industry Co., Inc.Inventors: Toshio Muramatsu, Koichi Nagayasu, Masayuki Kimura, Sadatugu Terada, Masayoshi Mayama