Patents by Inventor Harumi Watanabe
Harumi Watanabe 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: 20040001963Abstract: A coated paper sheet provided with a coating layer formed on a paper sheet substrate and containing a pigment and a binder and optionally a pre-coated polyacrylamide-containing anionic acrylic resin layer formed between the substrate and coating layer, and having a 75° specular gloss of 70% or more, an air permeability of 4000 seconds or less, a Clark stiffness, in terms of critical strength L, of 12 cm or more in a cross direction and an internal bond strength of 200 mJ or more, exhibits high resistance to blistering, excellent printer-passing property, and high quality image-recording property and useful for both of offset printing and electrophotographic duplicating or printing.Type: ApplicationFiled: June 5, 2003Publication date: January 1, 2004Applicant: OJI PAPER CO., LTD.Inventors: Harumi Watanabe, Atsushi Myojo, Hiroyuki Wakasa, Osamu Kitao
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Patent number: 6592984Abstract: Electrophotographic transfer paper comprising base paper having provided on at least one side thereof a coating layer mainly comprising a pigment and a binder at a solids content of 2 to 12 g/m2, which has an Oken's smoothness of 60 to 300 seconds on each side thereof, an air permeability of 10 to 90 seconds, and a coefficient of paper-to-paper friction of 0.5 to 0.9 at 28° C. and 85% RH. The transfer paper has excellent running properties on a digital full-color copying machine or printer of indirect dry electrophotographic system irrespective of the environment of use, especially in a high humidity environment, while proving a satisfactory image.Type: GrantFiled: December 15, 1995Date of Patent: July 15, 2003Assignee: Fuji Xerox Co., Ltd.Inventors: Tsukasa Matsuda, Kunio Sakurai, Tsutomu Kurihara, Masaru Kato, Harumi Watanabe
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Patent number: 6350562Abstract: A concentrated fixing solution which includes at least a thiosulfate, a water-soluble aluminum salt, and a compound having an absorbance of from 0.25 to 1.15 by a prescribed colorimetric method, and does not substantially contain a boron compound is disclosed. A method for processing a silver halide photographic material by using the concentrated fixing solution is also described.Type: GrantFiled: March 18, 1996Date of Patent: February 26, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Harumi Watanabe, Minoru Yamada, Mitsunori Hirano, Hisashi Okada
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Publication number: 20020001782Abstract: A concentrated fixing solution which includes at least a thiosulfate, a water-soluble aluminum salt, and a compound having an absorbance of from 0.25 to 1.15 by a prescribed colorimetric method, and does not substantially contain a boron compound is disclosed. A method for processing a silver halide photographic material by using the concentrated fixing solution is also described.Type: ApplicationFiled: March 18, 1996Publication date: January 3, 2002Applicant: FUJI PHOTO FILM CO., LTDInventors: HARUMI WATANABE, MINORU YAMADA, MITSUNORI HIRANO, HISASHI OKADA
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Patent number: 6217708Abstract: A double-side and full color transfer paper for electrophotography having a paper layer divided into a felt side and a wire side, wherein the difference between the orientation of fiber in the felt side and that in the wire side of the paper layer is 0.1 to −0.1, and both of residual curvature of the transfer paper in a MD (in a movement direction of a paper machine) and that in a CD (in a direction perpendicular to the MD) are included in a range from 7 to −7 m−1 and the expansion ratio of the transfer paper in the CD is 0.55 or lower, if necessary.Type: GrantFiled: April 8, 1997Date of Patent: April 17, 2001Assignees: Fuji Xerox Co., Ltd., Oji Paper Co., Ltd.Inventors: Tsutomu Kurihara, Katsumi Harada, Masaru Kato, Harumi Watanabe
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Patent number: 6191207Abstract: A polyamide resin composition comprising: from 30 to 70% by weight of a polyamide resin having a crystallization temperature not higher than 210° C.; and from 70 to 30% by weight of glass fiber having an average aspect ratio of from 10 to 20, and an average fiber diameter of from 15 to 30 &mgr;m. Also disclosed is a polyamide resin molded article comprising: from 30 to 70% by weight of a polyamide resin having a crystallization temperature not higher than 210° C.; and from 70 to 30% by weight of glass fiber having an average aspect ratio of from 9 to 18, and an average fiber diameter of from 15 to 30 &mgr;m.Type: GrantFiled: December 17, 1998Date of Patent: February 20, 2001Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Osamu Fujii, Harumi Watanabe
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Patent number: 6120954Abstract: Electrophotographic transfer paper having a coating layer provided on at least one surface of base paper and pigments and adhesive agents as main components, wherein resistivity (VR) and surface resistivity (SV) of electrophotographic transfer paper after the humidity has adjusted to 10.degree. C., 30% RH for 12 hours satisfy the expression Log(VR/SR).ltoreq.1.5. Using such electrophotographic transfer paper, occurrence of discharge mark and occurrence of density irregularity in a high-density image region are prevented to thereby make it possible to provide electrophotographic transfer paper excellent in fixing characteristic, nonshowthrough, partial deletion and generation of paper dust.Type: GrantFiled: April 9, 1999Date of Patent: September 19, 2000Assignees: Fuji Xerox Co., Ltd., New Oji Paper Co, Ltd.Inventors: Tsukasa Matsuda, Kunio Sakurai, Masaru Kato, Harumi Watanabe
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Patent number: 5925446Abstract: Electrophotographic transfer paper having a coating layer provided on at least one surface of base paper and pigments and adhesive agents as main components, wherein resistivity (VR) and surface resistivity (SV) of electrophotographic transfer paper after the humidity has adjusted to 10.degree. C., 30% RH for 12 hours satisfy the expression Log(VR/SR).ltoreq.1.5. Using such electrophotographic transfer paper, occurrence of discharge mark and occurrence of density irregularity in a high-density image region are prevented to thereby make it possible to provide electrophotographic transfer paper excellent in fixing characteristic, nonshowthrough, partial deletion and generation of paper dust.Type: GrantFiled: December 15, 1995Date of Patent: July 20, 1999Assignees: Fuji Xerox Co., Ltd., New Oji Paper Co., Ltd.Inventors: Tsukasa Matsuda, Kunio Sakurai, Masaru Kato, Harumi Watanabe
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Patent number: 5840472Abstract: A developer for a silver halide photographic photosensitive material containing at least one of monocyclic dimercaptotriazine compounds, bis-type dimercaptotriazine compounds, mercapto-1,2,4-triazine compounds and dimercaptopyrimidine compounds, and a process for developing a silver halide photographic photosensitive material using the developer. The compounds of the present invention provides excellent effect in preventing silver stains without affecting the photographic properties of the photographic material.Type: GrantFiled: February 7, 1997Date of Patent: November 24, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Hirotomo Sasaki, Harumi Watanabe, Kohzaburoh Yamada
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Patent number: 5695909Abstract: A silver halide photographic material comprising a support having provided thereon a light-sensitive silver halide emulsion layer, said silver halide photographic material contains at least one spectral sensitizing dye represented by the following formula (I): ##STR1## wherein Z.sub.11 represents a nonmetal atomic group necessary for completing a 5- or 6-membered nitrogen-containing heterocyclic ring; Q.sub.11 represents a nonmetal atomic group necessary for completing a 5-membered nitrogen-containing heterocyclic ring; R.sub.11 represents a substituted or unsubstituted alkyl group; R.sub.12 represents a straight chain or branched alkyl, alkenyl or alkynyl group each of which contains at least one carboxyl group and at least one ester bond, amido bond or ether bond; L.sub.11 and L.sub.12 each represents a methine group; m.sub.11 represents 0 or 1; m.sub.12 represents 0, 1 or 2: X.sub.1 represents a counter ion necessary for neutralizing a charge; and n.sub.Type: GrantFiled: October 25, 1996Date of Patent: December 9, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Toyohisa Oya, Kazuki Yamazaki, Harumi Watanabe
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Patent number: 5662995Abstract: Transfer paper for electrophotography of the present invention includes base paper; and a coating layer provided on at least one side of the base paper. The coating layer includes a pigment and a binder, has a solids content in the range of 2 to 10 g/m.sup.2, and has void-free areas containing no voids having a circle-equivalent diameter of equal to or more than 1 .mu.m and void area containing voids whose circle-equivalent diameter is equal to or more than 1 .mu.m. A proportion of void areas whose equivalent circle diameter is more than 20 .mu.m is not more than 2%, and the average equivalent circle diameter of the void areas and that of the void-free areas as observed on the surface of the coating layer satisfy at least one of the following conditions: (1) the average equivalent circle diameter of the void areas and that of the void-free areas are each from 1.5 to 10 .mu.m; (2) the average equivalent circle diameter of the void areas and that of the void-free areas are each 0.2 to 1.Type: GrantFiled: July 3, 1995Date of Patent: September 2, 1997Assignee: Fuji Xerox Co., Ltd.Inventors: Kunio Sakurai, Tsukasa Matsuda, Kyoko Inoue, Harumi Watanabe, Masaru Kato
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Patent number: 5637383Abstract: Electrophotographic transfer paper of the present invention satisfies at least one of expression of L.sub.MD /H.sub.MD .gtoreq.60 and L.sub.CD /H.sub.CD .gtoreq.35, where MD represents a paper direction parallel to the movement direction of a paper machine, L.sub.MD (cm) represents stiffness in MD, CD represents a paper direction perpendicular to the movement direction of the paper machine, and H.sub.CD (%) represents expansivity in CD.Type: GrantFiled: December 15, 1995Date of Patent: June 10, 1997Assignee: Fuji Xerox Co., Ltd.Inventors: Kunio Sakurai, Tsukasa Matsuda, Masaru Kato, Harumi Watanabe
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Patent number: 5288595Abstract: A method for processing a silver halide photosensitive material comprises the steps of developing an exposed silver halide photosensitive material and treating it with a bath having a fixing function containing an N-oxide compound having a mercapto group in the molecule. When the bath having a fixing function is used, a stable fixing power and excellent desilverization effect can be obtained by processing a color photosensitive material with only a small amount of replenisher.Type: GrantFiled: May 10, 1993Date of Patent: February 22, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Harumi Watanabe, Tetsuro Kojima, Nobuo Watanabe
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Patent number: 5093442Abstract: A method for producing a homopolymer or copolymer of an .alpha.-olefin is disclosed, wherein a specific catalyst is used, said catalyst comprising a solid catalyst component obtained by contacting, in the presence of a chlorinated hydrocarbon solvent, a titanium compound and an aromatic carboxylic ester with a solid component obtained by reacting a hydrocarbon solvent-soluble organomagnesium compound having an alkoxy group with a specified chlorosilane compound having an Si--H bond; an organoaluminum compound; and an alkoxysilane compound. By the method of the present invention, an .alpha.-olefin homopolymer or copolymer exhibiting high bulk density and stereoregularity can be efficiently produced under even such polymerization reaction conditions, that the polymerization temperature is high and the polymerization time is long.Type: GrantFiled: October 3, 1989Date of Patent: March 3, 1992Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Harumi Watanabe, Shigeo Tsuyama
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Patent number: 4939889Abstract: This package wrapping apparatus is equipped with film hauling device.This film hauling device comprises lower and upper conveyor belts which can catch selvage of film between those belts and unwind folded rolled film uniformly.Furthermore one end of lower or upper conveyor belts can be opened or closed by hand and, also can be locked in the closed position by locking lever.So if a piece of selvage of film is cut away, it can be removed from the above film hauling device easily by opening upper conveyor belt.Type: GrantFiled: July 19, 1988Date of Patent: July 10, 1990Assignee: International Sankoh Kabushiki KaishaInventor: Harumi Watanabe
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Patent number: 4924659Abstract: A film wrapping apparatus for wrapping articles and a method of wrapping articles in a heat-sealable thermoplastic packaging film. The apparatus has a film-hauling device in form of a conveyer having travelling clamping runs of upper and lower belts for clamping a free marginal selvage or edge part of a folded strip of packaging film having the parts thereof superposed. An infeed device positions articles successively at a position in which the superposed parts of successive lengths of the folded film are hauled over and under the articles respectively and envelope the articles as the successive lengths of the folded film are advanced intermittently by the film-hauling device from a web.Type: GrantFiled: July 19, 1988Date of Patent: May 15, 1990Assignee: International Sankoh Kabushiki KaishaInventor: Harumi Watanabe