Patents by Inventor Tetsuro Kojima

Tetsuro Kojima 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).

  • Patent number: 10443468
    Abstract: The fuel addition system comprises: a fuel addition valve, a fuel tank, a first pressure storage chamber storing fuel to be supplied to a fuel injector, a supply pump increasing a pressure of fuel inside the fuel tank and supplying the fuel to the first pressure storage chamber, a pressure reduction valve discharging fuel stored in the first pressure storage chamber, a pressure reduction fuel passage supplying fuel discharged from the first pressure storage chamber to the fuel addition valve, and a control device controlling the fuel addition valve and the pressure reduction valve. The control device detects or estimates a temperature of fuel supplied to the fuel addition valve and, when injecting fuel from the fuel addition valve, controls an amount of fuel discharged from the first pressure storage chamber through the pressure reduction valve so that the temperature of the fuel becomes a reference temperature or more.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: October 15, 2019
    Assignees: Soken, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Tetsuro Serai, Kenichi Tomomatsu, Takayoshi Kojima, Naoki Toda, Kazuhiro Umemoto, Toshihiro Mori, Hiromasa Nishioka
  • Patent number: 6638697
    Abstract: A method of processing a silver halide color photographic material comprises the steps of color-developing an image-wise exposed silver halide color photographic material and subjecting the developed material to desilvering in a processing bath having a fixing function and containing a thiosulfate compound and the following compound or analogue thereof in a molar ratio of 1/0.05 to 1/0.30. In this process, the fixing speed is extremely high even when the replenishing rate is low and the processed photosensitive material has an excellent resistance to fading by light.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: October 28, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Tetsuro Kojima, Masaru Yoshikawa
  • Patent number: 6541192
    Abstract: A silver halide color photographic lightsensitive material comprising at least one layer on a support, wherein the at least one layer contains a coupler represented by formula (I) below wherein X represents a hydrogen atom, halogen atom, arylthio group, carbamoyloxy group, heterocyclic carbonyloxy group, etc., each of R1 and R2 represents an electron-attracting group having a Hammett's substituent constant &sgr;p value of not less than 0.20, the sum of the &sgr;p values of R1 and R2 being not less than 0.65, each of R3 and R4 represents a alkyl group, alkenyl group, alkynyl group, cycloalkyl group, cycloalkenyl group, etc., or alternatively, R3 and R4 may bond together to form a ring structure; and each of R11 to R15 independently represents a hydrogen atom or a substituent.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: April 1, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuhiro Kato, Hisashi Mikoshiba, Naoto Matsuda, Tetsuro Kojima
  • Publication number: 20020192604
    Abstract: A method of processing a silver halide color photographic material comprises the steps of color-developing an image-wise exposed silver halide color photographic material and subjecting the developed material to desilvering in a processing bath having a fixing function and containing a thiosulfate compound and the following compound or analogue thereof in a molar ratio of 1/0.05 to 1/0.30. In this process, the fixing speed is extremely high even when the replenishing rate is low and the processed photosensitive material has an excellent resistance to fading by light.
    Type: Application
    Filed: November 9, 1995
    Publication date: December 19, 2002
    Inventors: TAKATOSHI ISHIKAWA, TETSURO KOJIMA, MASARU YOSHIKAWA
  • Publication number: 20020115029
    Abstract: A silver halide color photographic lightsensitive material comprising at least one layer on a support, wherein the at least one layer contains a coupler represented by formula (I) below 1
    Type: Application
    Filed: November 21, 2001
    Publication date: August 22, 2002
    Inventors: Yasuhiro Kato, Hisashi Mikoshiba, Naoto Matsuda, Tetsuro Kojima
  • Patent number: 6153370
    Abstract: There is disclosed a light-sensitive silver halide photographic emulsion, which comprises light-sensitive silver halide grains mainly composed of (100) planes and (111) planes, at least one compound that is adsorbed selectively on the (100) planes of the silver halide grains, and at least one spectrally sensitizing dye. There is also disclosed a light-sensitive material using the emulsion. The emulsion is high in sensitivity and excellent in graininess.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: November 28, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoichi Maruyama, Kimiyasu Morimura, Nobuyuki Haraguchi, Hiroyuki Mifune, Tetsuro Kojima
  • Patent number: 6140034
    Abstract: The present invention provides a heat development light-sensitive material which shows good discrimination of an image.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: October 31, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Naruse, Tetsuro Kojima
  • Patent number: 6004731
    Abstract: A method for processing a silver halide color photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, the method comprising the steps of: exposing the light-sensitive material; color developing the light-sensitive material; and desilvering the light-sensitive material, the desilvering step comprising processing the light-sensitive material with a desilvering processing solution containing at least one compound represented by formula (I) or a salt thereof: ##STR1## wherein Z represents --NR.sub.5 (R.sub.6) or --OR.sub.7, R represents an alkylene group, n represents 0 or 1, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 each independently represents a hydrogen atom, an aliphatic group or an aromatic group, and R.sub.7 represents an aliphatic group or an aromatic group, provided that any two of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be combined with each other to form a ring, that the total carbon number of R.sub.5 and R.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: December 21, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Hayashi, Tetsuro Kojima, Shinichi Ichikawa
  • Patent number: 6001543
    Abstract: Disclosed is a novel silver halide color photographic light-sensitive material comprising a support and photographic constituent layers formed thereon, said photographic constituent layers including at least one photographic light-sensitive layer comprising light-sensitive silver halide, said silver halide color photographic light-sensitive material being capable of forming an image thereon after exposure and simple heat development thereof, wherein the light-sensitive material contains a specific compound acting as an anti-fogging agent and wherein at least one silver halide emulsion contained in the light-sensitive material is characterized in that silver halide grains of the emulsion have a silver chloride content of 50 mol % or more, the tabular grains whose principal faces are each made up of a (111) plane account for 50% or more of the total projected area of the silver halide grains of the emulsion, the tabular grains have an average thickness of 0.3 .mu.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: December 14, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masahiro Asami, Tetsuro Kojima
  • Patent number: 5998124
    Abstract: A method for producing a photographic silver halide emulsion containing silver halide grains having a silver chloride content of 50 mol % or more and at least 30% of the surface area of the grains comprising [111] faces is disclosed, wherein the silver halide grains are formed in the presence of at least one kind of compounds represented by formula (I): ##STR1## wherein R.sub.1 represents an alkyl group, an alkenyl group, or an aralkyl group; R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 each represents a hydrogen atom or a group capable of substituting for the hydrogen atom, R.sub.2 and R.sub.3, R.sub.3 and R.sub.4, R.sub.4 and R.sub.5, and R.sub.5 and R.sub.6 each may be ring-condensed, provided that at least one of R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 represents an aryl group; and X.sup.- represents a counter anion.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: December 7, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsuhisa Ohzeki, Shoji Ishiguro, Tetsuro Kojima, Yasuhiro Mitamura
  • Patent number: 5922519
    Abstract: A method for processing a silver halide color photographic photosensitive material comprises the steps of desilverizing a photosensitive silver halide material having at least one red-sensitive layer, green-sensitive layer and blue-sensitive layer respectively on one side of a transparent support and a magnetic recording layer containing magnetic grains on the other side after the color development and then washing it with water and/or stabilizing it, wherein a bath having fixing function used in the desilverization step contains the following compound or analogue thereof. ##STR1## This method does not impair the S/N ratio of the magnetically recorded information and excellent desilverization effect can be obtained.
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: July 13, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Masaru Yoshikawa, Tetsuro Kojima
  • Patent number: 5871898
    Abstract: A silver halide photographic emulsion is disclosed, which is chemically sensitized with a compound having an adsorptive group onto silver halide and a labile sulfur moiety, and further a silver halide photographic material using the same emulsion is disclosed.
    Type: Grant
    Filed: August 5, 1996
    Date of Patent: February 16, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroyuki Mifune, Tetsuro Kojima
  • Patent number: 5814435
    Abstract: There is disclosed a photographic composition having fixing capacity and a method for processing a silver halide photographic material using the same. The photographic composition having fixing capacity comprises at least one compound represented by the following formula (I):RSO.sub.2 M formula (I)wherein R represents a lower alkyl group having 1 to 3 carbon atoms, and M represents a hydrogen atom or a cationic group.
    Type: Grant
    Filed: August 5, 1996
    Date of Patent: September 29, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuro Kojima, Masaru Yoshikawa, Yoshihiro Fujita
  • Patent number: 5780218
    Abstract: A method of reduction sensitization to provide a low-fog and high-speed silver halide emulsion having satisfactory preservability and a silver halide photographic material containing a silver halide emulsion having been reduction sensitized by the method are disclosed, the reduction sensitization being carried out using a compound having a group which is capable of being adsorbed onto a silver halide and a reducing group or a precursor of that compound during silver halide grain formation or after completion of grain formation.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: July 14, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroyuki Mifune, Tetsuro Kojima, Yasuhiro Mitamura
  • Patent number: 5691109
    Abstract: A method for processing silver halide photographic materials comprising the step of: processing imagewise exposed silver halide photographic material using a developer containing at least one compound represented by general formula (X): ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, an alkyl group containing from 2 to 8 carbon atoms, an alkenyl group containing from 3 to 8 carbon atoms, or an aralkyl group containing from 7 to 12 carbon atoms; or R.sub.1 and R.sub.2 are combined to form a ring; R.sub.3, R.sub.4, R.sub.5, and R.sub.6 each represents a hydrogen atom, or an alkyl group containing from 1 to 4 carbon atoms: and n represents an integer from 3 to 20. A developer for processing silver halide photographic materials comprising at least one compound represented by general formula (X), described above. A silver halide photographic material comprising: at least one compound represented by general formula (X'): ##STR2## wherein R'.sub.1 and R'.sub.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: November 25, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuro Kojima, Eiichi Okutsu, Kazunobu Katoh
  • Patent number: 5641619
    Abstract: A method for producing a silver halide emulsion, said method comprising: adding silver nitrate to a halogen compound to form an emulsion grain; and doping a non-labile selenium compound in an amount, in terms of selenium added, of from 1.0.times.10.sup.-8 to 1.0.times.10.sup.-6 mol per a unit surface area of 1 m.sup.2 of said emulsion grain, at the time when from 10 to 49% of the total silver amount used for the formation of said emulsion grain is added.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: June 24, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuyuki Haraguchi, Hideo Ikeda, Hiroyuki Mifune, Tetsuro Kojima
  • Patent number: 5573903
    Abstract: A silver halide photographic material having the improved storability and anti-stress property is disclosed, which comprises a support having provided thereon at least one light-sensitive silver halide emulsion layer containing a silver halide emulsion, wherein the silver halide emulsion is subjected to a chemical sensitization with a selenium compound, and the emulsion layer or another layer provided on the support contains at least one of the compounds represented by formulas (I), (II) and (III): ##STR1## wherein R.sub.11 to R.sub.16, R.sub.21 to R.sub.26, R.sub.1 and R.sub.2 are defined in the specification.
    Type: Grant
    Filed: March 13, 1995
    Date of Patent: November 12, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Yamashita, Tetsuro Kojima, Hiroyuki Mifune, Mikio Ihama, Hirotomo Sasaki
  • Patent number: 5573901
    Abstract: A silver halide photographic material having the improved storability and anti-stress property is disclosed, which comprises a support having provided thereon at least one light-sensitive silver halide emulsion layer containing a silver halide emulsion, wherein the silver halide emulsion is subjected to a chemical sensitization with a selenium compound, and the emulsion layer or another layer provided on the support contains at least one of the compounds represented by formulas (I), (II) and (III): ##STR1##
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: November 12, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Yamashita, Tetsuro Kojima, Hiroyuki Mifune, Mikio Ihama, Hirotomo Sasaki
  • Patent number: 5547829
    Abstract: A silver halide photographic material comprises a silver halide emulsion layer provided on a support. The silver halide emulsion layer contains a selenium or tellurium compound represented by the formula (I): ##STR1## in which Ch is Se or Te; R.sup.1 is hydrogen, an aliphatic group, an aromatic group, a heterocyclic group, --OR.sup.11 or --NR.sup.12 R.sup.13 ; each of R.sup.11, R.sup.12 and R.sup.13 is hydrogen, an aliphatic group, an aromatic group or a heterocyclic group; and R.sup.2 is an aliphatic group, an aromatic group or a heterocyclic group.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: August 20, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuro Kojima, Morio Yagihara, Hirotomo Sasaki, Hiroyuki Mifune, Shinji Kato
  • Patent number: 5543272
    Abstract: There is disclosed a photographic composition having fixing capacity and a method for processing a silver halide photographic material using the same. The photographic composition having fixing capacity comprises a photographic composition having fixing capacity, which comprises at least one compound represented by the following formula (I) and at least one compound represented by the following formula (II):RSO.sub.2 SM formula (I)wherein R represents an aliphatic group, an aromatic group, or a heterocyclic group, and M represents a hydrogen atom or a cationic group,R.sup.1 SO.sub.2 M.sup.1 formula (II)wherein R.sup.1 represents an aliphatic group, an aromatic group, or a heterocyclic group, and M.sup.1 represents a hydrogen atom or a cationic group.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: August 6, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuro Kojima, Masaru Yoshikawa, Yoshihiro Fujita