Patents by Inventor Yoshio Idota

Yoshio Idota 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: 20060254639
    Abstract: A photoelectric conversion element comprising: a layer containing an organic compound having a crystallization temperature of from 30 to 200° C.; an intermediate layer containing a compound having a crystallization temperature higher by from 20 to 100° C. than the crystallization temperature of the organic compound and a deposition temperature higher by from 30 to 200° C. than a deposition temperature of the organic compound; and a functional layer containing a compound having a crystallization temperature lower by from 20 to 100 ° C. than the crystallization temperature of the organic compound and a deposition temperature higher by from 50 to 300° C. than a deposition temperature of the organic compound, provided in this order.
    Type: Application
    Filed: February 23, 2006
    Publication date: November 16, 2006
    Inventor: Yoshio Idota
  • Patent number: 6235427
    Abstract: A nonaqueous secondary battery is disclosed, comprising a positive electrode having a positive electrode active material, a negative electrode having a negative electrode material, and a nonaqueous electrolyte, wherein the positive electrode active material is a transition metal oxide capable of intercalating and deintercalating lithium, and the negative electrode material comprises at least one silicic material capable of intercalating and deintercalating lithium selected from silicon, a silicon alloy and a silicide, and a process for producing the nonaqueous secondary battery is disclosed.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: May 22, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Idota, Akihiro Matsufuji, Nobufumi Mori, Akira Kase, Yoshikatsu Kagawa, Hajime Miyamoto
  • Patent number: 5965293
    Abstract: A nonaqueous secondary battery comprising a positive electrode active material, a negative electrode active material, and a lithium salt is disclosed, in which the negative electrode active material contains (1) a compound capable of intercalating and deintercalating lithium comprising an atom of the group IIIB, IVB or VB of the periodic table, (2) an amorphous compound containing at least two atoms selected from the elements of the groups IIIB, IVB, and VB of the periodic table, (3) a compound capable of intercalating and deintercalating lithium containing at least one of the atoms of the group IIIB, IVB, and VB of the periodic table and fluorine, or (4) a compound of the metal of the group IIIB, IVB or VB of the periodic table, Zn, or Mg which is capable of intercalating and deintercalating lithium. The nonaqueous secondary battery of the invention exhibits improved charge and discharge characteristics and improved safety.
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: October 12, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Idota, Masayuki Mishima, Yukio Miyaki, Tadahiko Kubota, Tsutomu Miyasaka
  • Patent number: 5780181
    Abstract: A nonaqueous secondary battery comprising a positive electrode active material, a negative electrode active material, and a lithium salt is disclosed, in which the negative electrode active material contains (1) a compound capable of intercalating and deintercalating lithium comprising an atom of the group IIIB, IVB or VB of the periodic table, (2) an amorphous compound containing at least two atoms selected from the elements of the groups IIIB, IVB, and VB of the periodic table, (3) a compound capable of intercalating and deintercalating lithium containing at least one of the atoms of the group IIIB, IVB, and VB of the periodic table and fluorine, or (4) a compound of the metal of the group IIIB, IVB or VB of the periodic table, Zn, or Mg which is capable of intercalating and deintercalating lithium. The nonaqueous secondary battery of the invention exhibits improved charge and discharge characteristics and improved safety.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: July 14, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Idota, Masayuki Mishima, Yukio Miyaki, Tadahiko Kubota, Tsutomu Miyasaka
  • Patent number: 5686203
    Abstract: A non-aqueous secondary battery comprises a positive electrode-active material, a negative electrode material and a non-aqueous electrolyte, wherein an electrode mixture for positive electrode containing the positive electrode-active material comprises a compound in which anions can be inserted at a voltage of not less than 3.9 V (with respect to an Li.sup.+ /Li electrode). Moreover, the electrode mixture for positive electrode may further comprise at least one member selected from the group consisting of transition metals, elements of Group IIIB and IVB (except for C) and carbides thereof. The non-aqueous secondary battery can ensure safety against any overcharge and has a high discharge voltage.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: November 11, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Idota, Shoichiro Yasunami, Mitsutoshi Tanaka
  • Patent number: 5618640
    Abstract: A nonaqueous secondary battery comprising a positive electrode active material, a negative electrode active material, and a lithium salt is disclosed, in which the negative electrode active material contains (1) a compound capable of intercalating and deintercalating lithium comprising an atom of the group IIIB, IVB or VB of the periodic table, (2) an amorphous compound containing at least two atoms selected from the elements of the groups IIIB, IVB, and VB of the periodic table, (3) a compound capable of intercalating and deintercalating lithium containing at least one of the atoms of the group IIIB, IVB, and VB of the periodic table and fluorine, or (4) a compound of the metal of the group IIIB, IVB or VB of the periodic table, Zn, or Mg which is capable of intercalating and deintercalating lithium. The nonaqueous secondary battery of the invention exhibits improved charge and discharge characteristics and improved safety.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: April 8, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Idota, Masayuki Mishima, Yukio Miyaki, Tadahiko Kubota, Tsutomu Miyasaka
  • Patent number: 5571637
    Abstract: A non-aqueous secondary battery comprises a positive electrode-active material, a negative electrode material and a non-aqueous electrolyte, wherein the negative electrode material comprises a boron-containing compound, in particular, a compound represented by the following general formula: SiB.sub.n (wherein n ranges from 3.2 to 6.6). The non-aqueous secondary battery ensures high safety and exhibits a high capacity and a high discharge voltage.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: November 5, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yoshio Idota
  • Patent number: 5514496
    Abstract: A nonaqueous secondary battery is disclosed, which comprises a positive electrode active material, a negative electrode active material, and a nonaqueous electrolyte containing a lithium salt, in which said negative electrode active material contains at least one chalcogenide compound mainly composed of a Group 14 element of the Periodic Table, a Group 15 element of the Periodic Table, In, Zn, or Mg.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: May 7, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masayuki Mishima, Yoshio Idota
  • Patent number: 5478671
    Abstract: A nonaqueous secondary battery comprises an anode active material, a cathode active material and a nonaqueous electrolyte. The anode active material is a transition metal oxide of which an inherent crystal structure has been changed by insertion of lithium ions, and is in the condition that the changed crystal structure is not changed during repeated charging and discharging.
    Type: Grant
    Filed: April 3, 1993
    Date of Patent: December 26, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yoshio Idota
  • Patent number: 5290661
    Abstract: A method for sorting images by silver salt diffusion transfer comprisingimagewise exposing a light-sensitive element comprising a light-sensitive silver halide emulsion layer,developing the light-sensitive element in the presence of a silver halide solvent using an alkaline processing composition to turn at least a part of unexposed silver halide of the light-sensitive silver halide emulsion layer into a transfer silver halide complex salt, andtransferring at least a part of the silver halide complex salt to an image receiving layer comprising a silver precipitating agent to form images on the image receiving layer,wherein at least one compound represented by formula (I) is added to at least one of the light-sensitive element, an image receiving element comprising the image receiving layer, and the processing composition in an amount of at least 1.times.10.sup.-6 and less than 1.times.10.sup.-2 mol based on one mol of silver applied per unit area (m.sup.
    Type: Grant
    Filed: July 29, 1992
    Date of Patent: March 1, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Idota, Makoto Ishihara, Morio Yagihara
  • Patent number: 5260148
    Abstract: A lithium secondary battery comprising an anode active material, an organic electrolytic solution containing an electrolyte, and a cathode active material, wherein the anode active material contains a lithium compound substantially insoluble in the organic electrolytic solution and represented by formula(Li).sub.p X (I)wherein X is an anion consisting of an atom or atoms and p indicates the anionic valence of X, the electrolyte contains a compound represented by formula (II):(A).sub.q (Y).sub.r (II)wherein A represents a cation consisting of an atom or atoms, Y represents an anion which may be identical with or different from X in formula (I) provided that the lithium salt of Y is a compound substantially insoluble in the organic electrolytic solution, q=[(anionic valence of Y).times.r]/(cationic valence of A), and r=[(cationic valence of A).times.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: November 9, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yoshio Idota
  • Patent number: 5236805
    Abstract: A method of image formation by silver salt diffusion transfer in which a photosensitive element which contains an imagewise exposed photosensitive silver halide emulsion layer is developed, in the presence of a silver halide solvent, using an alkaline processing composition, in which at least a portion of the unexposed silver halide in the emulsion layer is converted to a transferable silver complex salt, and in which at least a portion of the silver complex salt is transferred into a silver precipitant containing image forming layer to form an image in the image receiving layer wherein a hydroxylamine developing agent is included in the processing composition and at least two stabilizing compounds having two different heterocyclic rings which are represented by the general formula (I) indicated below are included in the silver halide emulsion layer: ##STR1## wherein Q represents a group of atoms which is required to form a five or six membered heterocyclic ring, and wherein the heterocyclic ring which is for
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: August 17, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Idota, Osami Tanabe, Morio Yatihara
  • Patent number: 5196278
    Abstract: A lithium secondary battery comprising an anode active material which contains at least one member selected from the group consisting of lithium, a lithium alloy, and a compound capable of intercalating and deintercalating lithium, a cathode active material, and an electrolyte which is an organic electrolyte containing a lithium salt, wherein said cathode active material is a crystalline compound obtained by mixing a lithium compound, a cobalt compound, and a vanadium compound in a molar ratio of x:y:z, respectively, wherein x is from 0 to 1.1, y is from 0.12 to 0.98, and z is 1-y, and heating the mixture.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: March 23, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yoshio Idota
  • Patent number: 5073473
    Abstract: A method for forming an image by silver salt diffusion transfer is described, comprises processing an imagewise exposed photosensitive element provided with a layer of photosensitive silver halide emulsion on a support, and an image-receiving element provided with an image-receiving layer containing a silver-precipitating agent on a support, with an alkali processing composition in the presence of a silver halide solvent, to convert at least part of the unexposed silver halide in the emulsion layer into a transferable silver complex salt, to transfer at least part of said complex salt into the image-receiving layer, and to form an image in the image-receiving layer; the processing being carried out in the presence of at least one compound as described.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: December 17, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keizo Koya, Yoshio Idota
  • Patent number: 4912015
    Abstract: A method of forming an image by silver salt diffusion transfer comprising (a) developing a light-sensitive element including an imagewise exposed light-sensitive silver halide emulsion layer with an alkali processing solution comprising a silver halide solvent to convert at least a portion of unexposed silver halide in the emulsion layer into a transferable silver complex salt, and (b) transferring at least a portion of the silver complex salt to an image-receiving element containing a silver precipitating agent to form an image on the image-receiving layer, wherein the processing is carried out in the presence of an organic phosphonic acid compound.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: March 27, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yoshio Idota
  • Patent number: 4803146
    Abstract: A method for forming an image with diffusion transfer of silver salts comprising processing a photosensitive element in the presence of a fogging agent.
    Type: Grant
    Filed: October 20, 1987
    Date of Patent: February 7, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Noriyuki Inoue, Yoshio Idota, Morio Yagihara
  • Patent number: 4798779
    Abstract: A process for forming an image by silver salt diffusion transfer comprising developing a light-sensitive element which comprises a support having provided thereon a light-sensitive silver halide emulsion layer which has been imagewise exposed to light by an alkaline processing composition in the presence of a silver halide solvent so that at least a part of silver halide unexposed in said emulsion layer is converted to a transferable silver complex salt, and then transferring at least a part of said silver complex salt to an image-receiving layer containing a silver precipitating agent to form an image on said image-receiving layer, wherein the concentration of said silver precipitating agent in said image-receiving layer is in the range of from 2.times.10.sup.-6 to 8.times.10.sup.-6 mol/m.sup.2 and at least one of said light-sensitive element and said alkaline processing composition contains at least one of a compound represented by formula (I) and a compound represented by formula (II) ##STR1## wherein R.
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: January 17, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Idota, Yukio Karino, Hiroshi Hayashi, Hideki Tomiyama
  • Patent number: 4683189
    Abstract: A method of forming a silver salt diffusion transfer image comprises developing an imagewise exposed photosensitive silver halide emulsion layer with a developing agent and a silver halide solvent in the presence of an alkali to thereby convert at least a portion of unexpected silver halide in said emulsion layer to a diffusible silver complex salt and transferring at least a portion of said silver complex salt into a silver precipitating agent-containing image receivin- layer to form an image in said image receiving layer.
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: July 28, 1987
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Idota, Morio Yagihara
  • Patent number: 4624911
    Abstract: A method for image formation by a diffusion transfer process including developing an imagewise light-exposed light-sensitive silver halide emulsion layer in the presence of a developing agent, a silver halide solvent and an alkali, wherein at least two cyclic imide compounds represented by the formula: ##STR1## wherein Z represents an atomic group necessary to form a 5- or 6-membered imido ring containing from 1 to 3 nitrogen atoms, are used as the silver halide solvent is disclosed. Images obtained by the method are stable during storage over a long period of time.
    Type: Grant
    Filed: February 27, 1985
    Date of Patent: November 25, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Idota, Morio Yagihara
  • Patent number: 4526857
    Abstract: In a process of forming an image by silver salt diffusion transfer comprising using a processing composition containing an alkali, a hydroxylamine developing agent, and a silver halide solvent, this process of forming an image comprises performing the diffusion transfer in the presence of a compound represented by the general formula: ##STR1## or both this compound and a compound represented by the general formula: ##STR2##
    Type: Grant
    Filed: April 12, 1984
    Date of Patent: July 2, 1985
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yoshio Idota