Patents by Inventor Hajime Nakagawa

Hajime Nakagawa 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).

  • Publication number: 20040126717
    Abstract: A photothermographic material comprising, on a support, an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder, and a non-photosensitive outermost layer at a surface side of the support at which the image forming layer is provided, wherein:
    Type: Application
    Filed: December 15, 2003
    Publication date: July 1, 2004
    Inventors: Hajime Nakagawa, Yoshihisa Tsukada, Keiichi Suzuki
  • Publication number: 20040121273
    Abstract: The invention provides a photothermographic material including, on a same surface of a substrate, a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, a development accelerator and a binder, the material containing, as the binder, a polymer formed by copolymerizing a monomer represented by the following general formula (M) in an amount from 10 to 70 mass %:
    Type: Application
    Filed: November 28, 2003
    Publication date: June 24, 2004
    Inventors: Hajime Nakagawa, Yoshihisa Tsukada
  • Publication number: 20040115572
    Abstract: A photothermographic material of the present invention has a support and an image-forming layer disposed thereon, and the image-forming layer contains a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder.
    Type: Application
    Filed: December 2, 2003
    Publication date: June 17, 2004
    Inventors: Yoshihisa Tsukada, Hajime Nakagawa
  • Publication number: 20040018458
    Abstract: The present invention provides a photothermographic material including a support having disposed on one surface of the support, at least one image forming layer containing a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, a development accelerator and a binder, and at least one protective layer on the identical surface, wherein 50% by mass or more of the binder contained in the image forming layer is a water soluble binder, and the reducing agent is contained in the form of a solid dispersion.
    Type: Application
    Filed: May 15, 2003
    Publication date: January 29, 2004
    Inventor: Hajime Nakagawa
  • Publication number: 20030235795
    Abstract: The object of the present invention is to provide a photothermographic material improved in the aging stability of unprocessed photosensitive material and/or in the image stability after the processing, which is a photothermographic material of the invention comprising a support and on the same surface of the support, a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder, wherein the concentration of chloride contained on the same surface is 1,000 ppm or less based on the organic silver salt.
    Type: Application
    Filed: August 22, 2002
    Publication date: December 25, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Hajime Nakagawa, Yoshihisa Tsukada, Seiichi Yamamoto, Takayoshi Oyamada, Kouta Fukui
  • Publication number: 20030098339
    Abstract: Lands formed on a flexible printed circuit board are electrically connected with lands formed on a rigid printed circuit board through solder. At this point, solder resist is formed between neighboring two lands on the rigid printed circuit board, and is terminated with an end portion that is interposed between the rigid printed circuit board and the flexible printed circuit board. Accordingly, even when surplus solder is extruded onto the rigid printed circuit board, the solder resist can prevent solder bridges from being formed between the lands.
    Type: Application
    Filed: January 13, 2003
    Publication date: May 29, 2003
    Inventors: Makoto Totani, Toshihiro Miyake, Tomohiro Yokochi, Takehito Teramae, Yoshitaro Yazaki, Kazuyuki Deguchi, Hajime Nakagawa
  • Publication number: 20030091947
    Abstract: A heat-developable image recording material having excellent image preservability, comprises a support having thereon a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ion and a specific binder.
    Type: Application
    Filed: April 5, 2002
    Publication date: May 15, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Yoshihisa Tsukada, Hajime Nakagawa, Seiji Hatano, tomokazu Yasuda
  • Patent number: 6527162
    Abstract: Lands formed on a flexible printed circuit board are electrically connected with lands formed on a rigid printed circuit board through solder. At this point, solder resist is formed between neighboring two lands on the rigid printed circuit board, and is terminated with an end portion that is interposed between the rigid printed circuit board and the flexible printed circuit board. Accordingly, even when surplus solder is extruded onto the rigid printed circuit board, the solder resist can prevent solder bridges from being formed between the lands.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: March 4, 2003
    Assignee: Denso Corporation
    Inventors: Makoto Totani, Toshihiro Miyake, Tomohiro Yokochi, Takehito Teramae, Yoshitaro Yazaki, Kazuyuki Deguchi, Hajime Nakagawa
  • Publication number: 20020146654
    Abstract: A heat-developable image recording material comprises a support, a photosensitive silver halide, a non-phosensitive organic silver salt, a reducing agent for a silver ion and a binder including a polymer latex, wherein polymer latex has a halogen ion content of not more than 500 ppm.
    Type: Application
    Filed: January 30, 2002
    Publication date: October 10, 2002
    Inventors: Yoshihisa Tsukada, Hajime Nakagawa, Tomokazu Yasuda
  • Publication number: 20020064737
    Abstract: A photothermographic material is described, which comprises a support having provided on at least one side thereof a photosensitive silver halide, a photo-insensitive organic silver salt, a reducing agent for silver ion and a binder, wherein at least one layer constituting the photothermographic material comprises an oxazoline compound, by which sufficiently high image density is developed within practically feasible reaction time and temperature, and sufficiently suppressed background coloration is exhibited when stored for a prolonged period after development processing.
    Type: Application
    Filed: September 24, 2001
    Publication date: May 30, 2002
    Inventors: Itsuo Fujiwara, Yoshihisa Tsukada, Yasuhiro Yoshioka, Hajime Nakagawa
  • Patent number: 6391536
    Abstract: Disclosed is a thermally processed image recording material having an image-forming layer that contains a non-photosensitive silver salt of an organic acid, a reducing agent for silver ions and a binder on a support, wherein the binder is coated as a dispersion of polymer microparticles having a core/shell structure, glass transition temperature of shell part of the core/shell structure is higher than glass transition temperature of core part, and the binder shows a minimum film-forming temperature of 30° C. or lower. According to the present invention, there is provided a thermally processed image recording material that provides improved image storability after heat development, i.e., improved coloration of white portions when the material is left at a high temperature, and has a transparent coated film with low haze that is also excellent in brittleness.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: May 21, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tomokazu Yasuda, Hajime Nakagawa
  • Publication number: 20020058220
    Abstract: A photothermographic image-recording material with improved storability before image formation and improved coating characteristics, which comprises a support having provided thereon an image-forming layer, the layer comprising at least one light-insensitive organic silver salt, a reducing agent for silver ion and a binder, wherein the binder comprises a polymer having a recurring unit represented by the formula (1), and the content of the recurring unit represented by the formula (1) in the polymer is from 0.1 to 50% by weight.
    Type: Application
    Filed: September 18, 2001
    Publication date: May 16, 2002
    Inventors: Yoshihisa Tsukada, Hajime Nakagawa, Seiji Hatano, Tomokazu Yasuda
  • Publication number: 20020014518
    Abstract: Lands formed on a flexible printed circuit board are electrically connected with lands formed on a rigid printed circuit board through solder. At this point, solder resist is formed between neighboring two lands on the rigid printed circuit board, and is terminated with an end portion that is interposed between the rigid printed circuit board and the flexible printed circuit board. Accordingly, even when surplus solder is extruded onto the rigid printed circuit board, the solder resist can prevent solder bridges from being formed between the lands.
    Type: Application
    Filed: July 19, 2001
    Publication date: February 7, 2002
    Inventors: Makoto Totani, Toshihiro Miyake, Tomohiro Yokochi, Takehito Teramae, Yoshitaro Yazaki, Kazuyuki Deguchi, Hajime Nakagawa
  • Publication number: 20010023049
    Abstract: Disclosed is a thermally processed image recording material having an image-forming layer that contains a non-photosensitive silver salt of an organic acid, a reducing agent for silver ions and a binder on a support, wherein the binder is coated as a dispersion of polymer microparticles having a core/shell structure, glass transition temperature of shell part of the core/shell structure is higher than glass transition temperature of core part, and the binder shows a minimum film-forming temperature of 30° C. or lower. According to the present invention, there is provided a thermally processed image recording material that provides improved image storability after heat development, i.e., improved coloration of white portions when the material is left at a high temperature, and has a transparent coated film with low haze that is also excellent in brittleness.
    Type: Application
    Filed: February 2, 2001
    Publication date: September 20, 2001
    Inventors: Tomokazu Yasuda, Hajime Nakagawa
  • Patent number: 6265142
    Abstract: A heat developable color photographic light-sensitive material comprising at least one dye providing compound represented by the formula (L1) shown below and at least one developing agent represented by the formula (1) or (2) shown below: The symbols in the above formulae are defined and described in detail in the specification.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: July 24, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hajime Nakagawa, Toshiki Taguchi
  • Patent number: 6183003
    Abstract: An airbag of an airbag device has a primary hole for receiving an inflator and a secondary hole for receiving a securing device which secures the inflator to a base plate. A section surrounding the secondary hole is sandwiched between the inflator put in the airbag and the base plate. Therefore, the section of the airbag sandwiched between the inflator and the base plate can be enlarged and thus a high securing strength of the airbag can be acquired. The primary hole can comprise a vent hole that is used to discharge the gas from the inflator to the outside of the airbag. This structure need not make the vent hole separately. Therefore, the airbag is made simple and the production cost thereof becomes lower.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: February 6, 2001
    Assignee: Nippondenso Co., Ltd.
    Inventors: Toshiaki Matsuhashi, Tomoji Suzuki, Yoshihiro Kaneko, Hajime Nakagawa
  • Patent number: 6177227
    Abstract: There is disclosed a heat-development color photographic light-sensitive material which has on a base at least two applied silver halide emulsion layers different in color sensitivity from each other and at least one applied non-light-sensitive layer, wherein the silver halide emulsion layer or the non-light-sensitive layer contains a dye providing compound and at least one specific diffusible electron transport agent, and wherein the non-light-sensitive layer contains a compound capable of reacting with an oxidized product of the electron transport agent. The light-sensitive material can provide an image excellent in discrimination even by subjecting to development for a short period of time, and is excellent in color separation.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: January 23, 2001
    Assignee: Fuji Photo film Co., Ltd.
    Inventor: Hajime Nakagawa
  • Patent number: 5989789
    Abstract: A silver halide color photographic material comprising a transparent support having thereon at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, at least one red-sensitive silver halide emulsion layer and at least one light-insensitive layer, wherein said red-sensitive silver halide emulsion layer contains at least one compound which releases a development inhibitor having a diffusion parameter of 0.3 or more upon reaction with the oxidation product of a color developing agent, and when development processing I and development processing II each defined in the specification are carried out, the gradients of yellow, magenta and cyan obtained by said two kinds of development processing satisfy the following conditions:0.8.ltoreq..gamma..sub.II (Y)/.gamma..sub.I (Y).ltoreq.1.20.8.ltoreq..gamma..sub.II (M)/.gamma..sub.I (M).ltoreq.1.20.8.ltoreq..gamma..sub.II (C)/.gamma..sub.I (C).ltoreq.1.2wherein .gamma..sub.I (Y), .gamma..sub.I (M), .gamma..sub.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: November 23, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hajime Nakagawa, Akimitsu Haijima
  • Patent number: 5985531
    Abstract: A silver halide color photographic light-sensitive material containing a compound represented by formula (I) belowformula (I)A--O--C(.dbd.O)--N(X.sub.1)--C(X.sub.2)(X.sub.3)--DIwherein A represents a coupler residue, X.sub.1 represents a heterocyclic group or a --C(X.sub.4)(X.sub.5)--Y group, Y represents an --SO.sub.2 R.sup.1, --SO.sub.2 NR.sup.1 R.sup.2, --CONR.sup.1 R.sup.2, --CO.sub.2 Z, --CN, --CF.sub.3, --CCl.sub.3, or --NO.sub.2 group, each of R.sup.1 and R.sup.2 independently represents a hydrogen atom or a substituted or nonsubstituted alkyl, cycloalkyl, alkenyl, aryl, or heterocyclic group, Z represents a hydrogen atom or a substituted or nonsubstituted cycloalkyl, alkenyl, aryl, or heterocyclic group, each of X.sub.2, X.sub.3, X.sub.4, and X.sub.5 represents a hydrogen atom or a substituent group, and DI represents a development inhibitor residue which is bonded by a hetero atom and released to form mercaptoazole.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: November 16, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takeshi Nakamine, Hajime Nakagawa, Osamu Uchida, Hideaki Sato, Toshio Kawagishi
  • Patent number: 5459024
    Abstract: The present invention relates to color photographic materials having improved sharpness, higher photographic speeds and increased fastness by forming the image in the presence of couplers wherein the rate of dye formation is high, the color forming density is high and the dye which is formed has a high degree of fastness. The coupler compound represented by formula (I) indicated below is contained in at least one hydrophilic colloid layer on a support of a silver halide color photographic material.R.sup.1 R.sup.2 NCOCHXCONH-.phi..sup.1 -SO.sub.2 NR.sup.3 -.phi..sup.2(I)In formula (I), R.sup.1 and R.sup.2 each independently represents an alkyl group, an aryl group or a heterocyclic group, R.sup.3 represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group, X represents a group which can be eliminated when the coupler compound reacts with an oxidized product of a primary aromatic amine developing agent, .phi..sup.1 represents a phenylene group, .phi..sup.
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: October 17, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Naoki Saito, Akira Ogawa, Hajime Nakagawa