Patents by Inventor Hideki Sakai

Hideki Sakai 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: 20090047550
    Abstract: A method for manufacturing a fuel cell having a structure in which a positive electrode and a negative electrode are opposed with a proton conductor therebetween and an enzyme is immobilized on the positive electrode and/or the negative electrode includes the step of immobilizing the enzyme on the positive electrode and/or the negative electrode with a photo-curable resin and/or a thermosetting resin. A photo-curable resin and/or a thermosetting resin may be further laminated on the photo-curable resin and/or the thermosetting resin which have immobilized the enzyme.
    Type: Application
    Filed: August 12, 2008
    Publication date: February 19, 2009
    Applicant: SONY CORPORATION
    Inventors: Masaya Kakuta, Hideki Sakai, Takaai Nakagawa, Yuichi Tokita
  • Publication number: 20080316613
    Abstract: The extender lens apparatus is detachably attached to an image-forming optical system including a first main lens unit disposed closest to an object and a second main lens unit disposed between the first main lens unit and an image plane. The apparatus includes a first extender lens unit to be inserted in a space closer to the first main lens unit than the second main lens unit, and a second extender lens unit to be inserted in a space closer to the image plane than the second main lens unit. The first extender lens unit has a magnification increasing effect. The apparatus is capable of varying a magnification of the image-forming optical system while maintaining good optical performance without greatly increasing the entire length of the image-forming optical system.
    Type: Application
    Filed: June 19, 2008
    Publication date: December 25, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Hideki Sakai
  • Patent number: 7468953
    Abstract: The present invention provides a path setting method for automatically setting network paths.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: December 23, 2008
    Assignees: The Kansai Electric Power Co., Inc., Panasonic Electric Works Co., Ltd.
    Inventors: Koji Maegawa, Hideki Sakai, Shinji Yamamoto
  • Publication number: 20080280184
    Abstract: A fuel cell includes a positive electrode and a negative electrode which are opposed to each other with a proton conductor provided therebetween, and an enzyme immobilized as a catalyst on at least one of the positive and negative electrodes. In the fuel cell, the positive electrode, the proton conductor, and the negative electrode are accommodated in a space formed between a positive electrode current collector having a structure permeable to an oxidizer and a negative electrode current collector having a structure permeable to fuel.
    Type: Application
    Filed: May 7, 2008
    Publication date: November 13, 2008
    Applicant: SONY CORPORATION
    Inventors: Hideki Sakai, Takashi Tomita, Atsushi Sato, Takaaki Nakagawa
  • Publication number: 20080248374
    Abstract: A fuel cell includes a positive electrode, a negative electrode, an enzyme including an oxidase that oxidizes a monosaccharide, the enzyme being immobilized on the negative electrode, an electron mediator including a compound having a naphthoquinone skeleton, the electron mediator being immobilized on the negative electrode, a coenzyme that is formed by oxidation of the monosaccharide, and a coenzyme oxidase that oxidizes the coenzyme, in which the ratio of the electron mediator to the coenzyme is in the range of 1.0 (mol):0.33 (mol) to 1.0 (mol):1.0 (mol).
    Type: Application
    Filed: April 17, 2008
    Publication date: October 9, 2008
    Applicant: SONY CORPORATION
    Inventors: Mamoru Hatakeyama, Takashi Tomita, Hideki Sakai, Atsushi Sato, Takaaki Nakagawa
  • Patent number: 7382484
    Abstract: When the distributed load system of grid computing is applied to printers, multi-functional peripheral equipments, and the like connected to a computer network, if a device which inputs a job received from the client is executing processing, the distributed processing requires much time, and the user of the client cannot obtain the print result soon. Hence, when a print job is input, the processing time upon executing distributed processing of data processes in the print job by computer devices connected to the computer network is estimated. Based on the estimation result, the print job or jobs divided from the print job are transmitted to the computer devices connected to the computer network.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: June 3, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yushi Matsukubo, Yukihiko Shimizu, Masataka Yasuda, Noriyuki Kobayashi, Shinichiro Maekawa, Takeshi Namikata, Hideki Sakai, Hirohiko Tashiro, Atsushi Matsumoto, Masamichi Akashi
  • Publication number: 20070224466
    Abstract: To provide a fuel cell and a method of using the same, which enable such a reaction environment as to exhibit excellent properties as electrode sufficiently, and to provide a cathode for the fuel cell, a device using an electrode reaction, and an electrode for the device using an electrode reaction. A fuel cell 10 includes an electrolyte solution 7 arranged between a cathode 1 and an anode 5. The cathode 1 includes a porous material made typically of carbon and an immobilized thereon. The fuel cell is so configured as to bring at least part of the cathode 1 into contact with a reactant in a gaseous phase. The cathode 1 preferably further includes an immobilized electron-transfer mediator in addition to the enzyme. The reactant in a gaseous phase can be, for example, air or oxygen.
    Type: Application
    Filed: August 22, 2005
    Publication date: September 27, 2007
    Applicant: SONY CORPORATION
    Inventors: Takaaki Nakagawa, Atsushi Sato, Hideki Sakai, Mamoru Hatakeyama
  • Publication number: 20070218345
    Abstract: A fuel cell which can directly extract electric power from a polysaccharide, such as starch. A fuel electrode 1 is formed by immobilizing with an immobilizer, on an electrode 11 comprised of, e.g., carbon, an enzyme responsible for decomposing a polysaccharide into monosaccharides, an enzyme responsible for decomposing the monosaccharide formed, a coenzyme (e.g., NAD+ or NADP+) which forms a reductant due to the oxidation reaction in the monosaccharide decomposition process, a coenzyme oxidase (e.g., diaphorase) for oxidizing the reductant of the coenzyme (e.g., NADH or NADPH), and an electron mediator (e.g., ACNQ or vitamin K3) for receiving electrons generated due to the oxidation of the coenzyme from the coenzyme oxidase and delivering the electrons to the electrode 11. The fuel cell comprises the fuel electrode 1 and the air electrode 5 that sandwich an electrolyte layer 3.
    Type: Application
    Filed: June 7, 2005
    Publication date: September 20, 2007
    Inventors: Hideki Sakai, Takashi Tomita, Atsushi Sato, Yuichi Tokita
  • Publication number: 20070196722
    Abstract: A fuel cell and an electronic device equipped therewith are disclosed. The fuel cell is of the type having a cathode and an anode facing each other with a proton conductor interposed therebetween, with at least either of the cathode or anode having an enzyme as a catalyst immobilized thereon, wherein at least a first cathode, a first proton conductor, an anode, a second proton conductor, and a second cathode are sequentially placed thereon, and in fuel is held in contact with at least part of the anode.
    Type: Application
    Filed: January 15, 2007
    Publication date: August 23, 2007
    Applicant: SONY CORPORATION
    Inventors: Takashi Tomita, Hideki Sakai, Takaaki Nakagawa, Mamoru Hatakeyama
  • Publication number: 20070196899
    Abstract: A mutant protein having diaphorase activity is provided. A mutant protein includes an amino acid sequence obtained by deletion, replacement, addition, or insertion of at least one amino acid residue of a native-form amino acid sequence of SEQ. ID. No. 1, wherein the mutant protein has diaphorase activity with an enzyme activity of 245 or more.
    Type: Application
    Filed: November 28, 2006
    Publication date: August 23, 2007
    Applicant: SONY CORPORATION
    Inventors: Yoshio Goto, Taiki Sugiyama, Yuichi Tokita, Hideyuki Kumita, Jusuke Shimura, Hideki Sakai, Takashi Tomita
  • Publication number: 20070189958
    Abstract: An anatase-type titanium oxide powder having a ratio of rutile to anatase of 10% or less and a BET specific surface area of 20 to 80 m2/g. Since the titanium oxide powder has a large specific surface area and a low ratio of rutile to anatase in comparison with a conventional titanium oxide powder and excels in dispersibility, the titanium oxide powder is suitable for various applications.
    Type: Application
    Filed: March 10, 2005
    Publication date: August 16, 2007
    Applicant: TOHO TITANIUM CO., LTD.
    Inventor: Hideki Sakai
  • Patent number: 7249807
    Abstract: A vehicle braking force control device for executing a follow-up (or servo) control of braking force for individual wheels is improved for canceling the difference of braking force between left and right wheels especially during transient condition of braking force variation due to the difference of input-output response characteristics in braking force generating apparatuses and components associated therewith in a braking system. In the inventive control device, a relation between actual values of braking force on left and right wheels, such as the difference between braking force or pressure values on the left and right wheels, is fed back to these braking force generating apparatuses through the modification of target barking force or pressure values. The modification amounts of the target values may be determined so as to keep appropriate braking force distribution among front and rear wheels.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: July 31, 2007
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hideki Sakai
  • Publication number: 20070081938
    Abstract: A titanium dioxide powder which has a rutile content of 80% or more and a BET surface area of 30 m2/g or more; and a method for producing the titanium dioxide powder wherein a titanium tetrachloride gas, an oxygen gas, a hydrogen gas, and steam are reacted in a gas phase, which comprises supplying the steam in the chemically equivalent amount necessary for oxidizing all of the titanium tetrachloride gas or more. The titanium dioxide powder is suitably used as a coating material for a glass substrate and a filler. The method can be employed for arbitrarily producing a titanium dioxide powder which is composed of fine particles having a great specific surface area and also has a very high rutile content or an anatase type titanium dioxide powder having a high specific surface area.
    Type: Application
    Filed: September 28, 2004
    Publication date: April 12, 2007
    Applicant: TOHO TITANIUM CO., LTD
    Inventor: Hideki Sakai
  • Publication number: 20070062821
    Abstract: A porous electroconductive material is provided. The electroconductive material enables efficient enzymatic metabolic reactions on electrodes and yields electrodes having immobilized enzymes thereon which remain stable in any working environment. The porous electroconductive material, which has a three-dimensional network structure, is formed from a skeleton of porous material and a carbonaceous material covering the surface of the skeleton. The porous material constituting the skeleton is foamed metal or alloy. This porous electroconductive material is made into an electrode, and enzymes are immobilized on this electrode. The resulting electrode with immobilized enzymes thereon is used as the anode of a bio-fuel cell.
    Type: Application
    Filed: July 20, 2006
    Publication date: March 22, 2007
    Applicant: SONY CORPORATION
    Inventors: Atsushi Sato, Hideki Sakai, Mamoru Hatakeyama, Takaaki Nakagawa
  • Publication number: 20060077906
    Abstract: The present invention provides a path setting method for automatically setting network paths.
    Type: Application
    Filed: September 22, 2004
    Publication date: April 13, 2006
    Applicant: THE KANSAI ELECTRIC POWER CO., INC. MATSUSHITA ELECTRIC WORKS, LTD
    Inventors: Koji Maegawa, Hideki Sakai, Shinji Yamamoto
  • Patent number: 6991873
    Abstract: A non-aqueous electrolyte cell having high discharge capacity, an improved capacity upkeep ratio and optimum cyclic characteristics. The non-aqueous electrolyte cell has a cell device including a strip-shaped cathode material and a strip-shaped anode material, layered and together via a separator and coiled a plural number of times, a non-aqueous electrolyte solution, and a cell can for accommodating cell device and the non-aqueous electrolyte solution. The cathode employs a cathode active material containing a compound of the olivinic structure represented by the general formula LixFe1-yMyPO4, where M is at least one selected from the group consisting of Mn, Cr, Co, Cu, Ni, V, Mo, Ti, Zn, Al, Ga, Mg, B and Nb, with 0.05?x?1.2 and 0?y?0.8, with the compound being used either singly or in combination with other materials. The ratio of an inner diameter d to an outer diameter D of cell device is selected so that 0.05<d/D<0.5.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: January 31, 2006
    Assignee: Sony Corporation
    Inventors: Hideki Sakai, Yuzuru Fukushima, Junji Kuyama, Mamoru Hosoya
  • Publication number: 20050289215
    Abstract: Even when a CPU gains higher performance and a distributed computing environment is being put in place, it is not easy to follow the speed of hardware image processing implemented by dedicated hardware. Hence, jobs of filter processing having a heavy operation load and low distributability are selectively and intensively input to a small number of resources having performance as high as possible. On the other hand, since the color conversion processing and gamma processing have high distributability, even when jobs are input to many resources having low performance, an improvement of the processing speed can be expected. Therefor, color conversion processing and gamma processing distribute jobs to many resources.
    Type: Application
    Filed: June 9, 2005
    Publication date: December 29, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takeshi Namikata, Yushi Matsukubo, Yukihiko Shimizu, Masataka Yasuda, Noriyuki Kobayashi, Shinichiro Maekawa, Hideki Sakai, Hirohiko Tashiro, Atsushi Matsumoto, Masamichi Akashi
  • Publication number: 20050275882
    Abstract: When a target device of distributed processing has shifted to a power save mode, if the target device is resumed to the normal operation to attain the distributed processing, resources of the target device which are not required for the distributed processing waste electric power. Therefore, when a print job to be processed by grid processing is received, resources required for the grid processing from resources in a waiting state, and the grid processing is executed to process the received print job.
    Type: Application
    Filed: June 9, 2005
    Publication date: December 15, 2005
    Applicant: Canon Kabushiki Kaisha
    Inventors: Masataka Yasuda, Yushi Matsukubo, Yukihiko Shimizu, Noriyuki Kobayashi, Shinichiro Maekawa, Takeshi Namikata, Hideki Sakai, Hirohiko Tashiro, Atsushi Matsumoto, Masamichi Akashi
  • Publication number: 20050275862
    Abstract: In a network print system in which a printer and at least one client are connected to each other through a network, and at least a part of a job for the printer can be subjected to load distributed processing by grid computing, wherein when a printer driver of the printer is installed on any one of the at least one client, the system is adapted to build a grid computing network. In this arrangement, it is easily to build the grid computing network in which the printer job is subjected to load distributed processing.
    Type: Application
    Filed: June 9, 2005
    Publication date: December 15, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Atsushi Matsumoto, Yushi Matsukubo, Yukihiko Shimizu, Masataka Yasuda, Noriyuki Kobayashi, Shinichiro Maekawa, Takeshi Namikata, Hideki Sakai, Hirohiko Tashiro, Masamichi Akashi
  • Publication number: 20050275883
    Abstract: A mechanism that attains high-speed processing by distributing a great deal of processing to a plurality of devices upon processing does not perform processing distribution which considers hardware resources of devices used in distributed processing. When rendering processing of a print job is executed by distributed processing using devices connected to a computer network, it is determined whether hardware or software rendering processing is executed (S1102, S1103). Image processing devices which can implement hardware or software rendering processing are sought from devices connected to the computer network (S1104, S1106). Based on the determination and seek results, devices to which jobs divided from the print job are transmitted are notified (S1108).
    Type: Application
    Filed: June 9, 2005
    Publication date: December 15, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Noriyuki Kobayashi, Yushi Matsukubo, Yukihiko Shimizu, Masataka Yasuda, Shinichiro Maekawa, Takeshi Namikata, Hideki Sakai, Hirohiko Tashiro, Atsushi Matsumoto, Masamichi Akashi