Patents by Inventor Kazuaki Okada

Kazuaki Okada 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: 20210095930
    Abstract: The vapor chamber includes a container having a hollow cavity and formed of one plate-shaped member and another plate-shaped member facing the one plate-shaped member that are layered on each other, a working fluid enclosed in the cavity, and a wick structure provided in the cavity. The wick structure includes a first wick part extending from a heat receiving part to a heat discharge part and having a first wick member using a linear member, and a second wick part provided to the heat receiving part and having a second wick member using a linear member. An average diameter the linear member of the second wick member is smaller than an average diameter of the linear member of the first wick member or an aperture dimension of the second wick member is smaller than an aperture dimension of the first wick member.
    Type: Application
    Filed: November 24, 2020
    Publication date: April 1, 2021
    Applicant: Furukawa Electric Co., Ltd.
    Inventors: Yoshikatsu Inagaki, Hirofumi Aoki, Daiki Takemura, Hiroshi Okada, Kazuaki Aotani
  • Patent number: 10889870
    Abstract: In this steel component, the concentration of C in a surface layer is 0.85 mass % or more to 1.2 mass % or less, which is higher than the concentration of C in a starting material steel, the surface layer has a volume ratio of a retained-austenite structure higher than 0% and lower than 10%, the remainder of the surface layer is a martensitic structure, the area fraction of grain boundary carbides in the surface layer is lower than 2%, a layer inside the surface layer is higher than the surface layer in a volume ratio of a retained-austenite structure, and in the layer inside the surface layer, the remainder is a martensitic structure.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: January 12, 2021
    Assignees: AISIN AW CO., LTD., NIPPON STEEL CORPORATION
    Inventors: Koji Obayashi, Kazuaki Okada, Keisuke Matsuzaka, Masashi Sakakibara, Manabu Kubota, Kei Miyanishi, Tatsuya Koyama
  • Publication number: 20200216478
    Abstract: To provide an electrochromic compound, represented by the following general formula (I): where X1, X2, X3, X4, X5, X6, X7 and X8 are each independently a hydrogen atom or a monovalent substituent; R1 and R2 are each independently a monovalent substituent; A? and B? are each independently a monovalent anion; and Y is represented by the following general formula (II) or (III): where X9, X10, X11, X12, X13, X14, X15, X16, X17, and X18 are each independently a hydrogen atom or a monovalent substituent.
    Type: Application
    Filed: March 16, 2020
    Publication date: July 9, 2020
    Inventors: Toshiya SAGISAKA, Hiroyuki TAKAHASHI, Takashi OKADA, Shigenobu HIRANO, Tohru YASHIRO, Koh FUJIMURA, Yoshihisa NAIJO, Yoshinori OKADA, Kazuaki TSUJI, Sukchan KIM, Keiichiroh YUTANI, Tamotsu HORIUCHI, Mamiko INOUE
  • Patent number: 10626133
    Abstract: To provide an electrochromic compound, represented by the following general formula where X1, X2, X3, X4, X5, X6, X7 and X8 are each independently a hydrogen atom or a monovalent substituent; R1 and R2 are each independently a monovalent substituent; A? and B? are each independently a monovalent anion; and Y is represented by the following general formula (II) or (III): where X9, X10, X11, X12, X13, X14, X15, X16, X17, and X18 are each independently a hydrogen atom or a monovalent substituent.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: April 21, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshiya Sagisaka, Hiroyuki Takahashi, Takashi Okada, Shigenobu Hirano, Tohru Yashiro, Koh Fujimura, Yoshihisa Naijo, Yoshinori Okada, Kazuaki Tsuji, Sukchan Kim, Keiichiroh Yutani, Tamotsu Horiuchi, Mamiko Inoue
  • Publication number: 20200103718
    Abstract: Provided is an electrochromic display device including a pair of supporting substrates facing each other, a pair of electrodes each disposed on the supporting substrate and facing each other, an electrochromic display layer disposed in contact with at least one of the pair of the electrodes, and an electrolyte layer disposed between the pair of the electrode, wherein the electrochromic display layer includes a plurality of electrochromic layers exhibiting mutually different coloring colors, and the plurality of the electrochromic layers are laminated on the electrode at least in a partial area of the electrode.
    Type: Application
    Filed: February 13, 2018
    Publication date: April 2, 2020
    Inventors: Yoshinori OKADA, Keigo TAKAUJI, Satoshi YAMAMOTO, Daisuke GOTO, Toshiya SAGISAKA, Masato SHINODA, Kazuaki TSUJI, Fuminari KANEKO, Tohru YASHIRO, Mamiko INOUE, Yuto MATSUOKA, Naoki URA
  • Patent number: 10557386
    Abstract: A joint includes a rotation transmitting portion and a stopper portion. The rotation transmitting portion abuts on a relative rotating portion in a circumferential direction. The stopper portion is capable of abutting on the relative rotating portion to restrict an axial position of the relative rotating portion. The stopper portion of the joint which rotates at the same speed as the relative rotating portion restricts an axial position of the relative rotating portion, whereby a sliding movement does not occur between the relative rotating portion and the stopper portion. It can be restricted that a power transmission efficiency is decreased and an abrasive wear is generated.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: February 11, 2020
    Assignee: DENSO CORPORATION
    Inventors: Kazuaki Nemoto, Hiroshi Okada
  • Publication number: 20200023618
    Abstract: A method for manufacturing a glass plate according to one aspect of the present invention includes a first step of preparing a glass plate, a second step of preparing an antifog film that includes a film substrate having a thickness of no greater than 100 ?m, an antifog layer having antifog properties and layered on one surface of the film substrate, and an adhesive layer layered on another surface of the film substrate, and a third step of attaching the antifog film to the glass plate via the adhesive layer.
    Type: Application
    Filed: December 25, 2017
    Publication date: January 23, 2020
    Applicants: Nippon Sheet Glass Company, Limited, TOPPAN INFOMEDIA CO., LTD.
    Inventors: Toyoyuki TERANISHI, Kazuaki OYA, Itaru UTSUGI, Tomoyuki OKADA
  • Publication number: 20190078171
    Abstract: In this steel component, the concentration of C in a surface layer is 0.85 mass % or more to 1.2 mass % or less, which is higher than the concentration of C in a starting material steel, the surface layer has a volume ratio of a retained-austenite structure higher than 0% and lower than 10%, the remainder of the surface layer is a martensitic structure, the area fraction of grain boundary carbides in the surface layer is lower than 2%, a layer inside the surface layer is higher than the surface layer in a volume ratio of a retained-austenite structure, and in the layer inside the surface layer, the remainder is a martensitic structure.
    Type: Application
    Filed: March 8, 2017
    Publication date: March 14, 2019
    Applicants: AISIN AW CO., LTD., NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Koji OBAYASHI, Kazuaki OKADA, Keisuke MATSUZAKA, Masashi SAKAKIBARA, Manabu KUBOTA, Kei MIYANISHI, Tatsuya KOYAMA
  • Patent number: 10042790
    Abstract: A computer, on which operating systems run, the computer comprising a virtualization function module configured to manage virtual computers. A operating system is configured to run on each of the virtual computers. The virtualization function module includes an interrupt controller. The interrupt controller is configured to hold vector information for managing host-side interrupt vectors, and interrupt vector allocation information for managing allocation of the host-side interrupt vectors to the guest-side interrupt vectors that are set by the operating systems. The virtualization function module is configured to analyze a state of allocation of the host-side interrupt vectors to the guest-side interrupt vectors, and change the allocation of the host-side interrupt vectors to the guest-side interrupt vectors based on a result of the analysis.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: August 7, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Kazuaki Okada, Takao Totsuka
  • Publication number: 20160364349
    Abstract: A computer, on which operating systems run, the computer comprising a virtualization function module configured to manage virtual computers. A operating system is configured to run on each of the virtual computers. The virtualization function module includes an interrupt controller. The interrupt controller is configured to hold vector information for managing host-side interrupt vectors, and interrupt vector allocation information for managing allocation of the host-side interrupt vectors to the guest-side interrupt vectors that are set by the operating systems. The virtualization function module is configured to analyze a state of allocation of the host-side interrupt vectors to the guest-side interrupt vectors, and change the allocation of the host-side interrupt vectors to the guest-side interrupt vectors based on a result of the analysis.
    Type: Application
    Filed: March 7, 2014
    Publication date: December 15, 2016
    Inventors: Kazuaki OKADA, Takao TOTSUKA
  • Patent number: 8430974
    Abstract: A steel component formed by carburizing and then induction-hardening of a steel consisting essentially of, by mass, C: minimum 0.08% and less than 0.3%; Si: maximum 2.0%; Mn: from 0.2% to 3.0%; P: maximum 0.03%; S: from 0.005% to 0.05%; Ni: maximum 1.5%; Cr: maximum 3.0%; Mo: maximum 1.0%; O: maximum 0.0025%; and N: from 0.005% to 0.03%; and further including either or both of, by mass, Al: from 0.005% to 0.05%, and Ti: from 0.005% to 0.05%; and still further including either or both of, by mass, V: maximum 0.3%, and Nb: maximum 0.3%; and a balance including Fe and unavoidable impurities. The hardness of the surface layer is at least 55 HRC and the hardness of the core portion is from 20 to 50 HRC. The core portion does not include a martensite structure.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: April 30, 2013
    Assignees: Aisin AW Co., Ltd., Nippon Steel Corporation Muroran Works
    Inventors: Takao Taniguchi, Hisao Shirai, Kouji Ohbayashi, Kazuaki Okada, Hideo Kanisawa, Shuji Kozawa
  • Patent number: 8034201
    Abstract: The present invention provides a method for induction hardening of a steel member having an outer ring portion and, more specifically, for induction hardening of an outer circumferential surface of the outer ring portion. The method uses two pressing members, each of which includes a flat basal surface and a projecting portion projecting therefrom. Each of the projecting portions has a cross-section in the shape of a perfect circle. Also, the projecting portions have, on the outer circumferences thereof, respective pressing surfaces. While gaps are maintained between axial end faces of the outer ring portion and the basal surfaces of the pressing members, the pressing members are pressed against the outer ring portion so that the pressing surfaces each abut against the inner circumference side of the outer ring portion. While a biasing force is applied to the pressing members, the induction hardening process is applied to the outer circumferential surface.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: October 11, 2011
    Assignee: AISIN AW Co., Ltd.
    Inventors: Kouji Ohbayashi, Kazuaki Okada
  • Patent number: 7998282
    Abstract: A method of heat-treating a steel member including carburizing a steel member in a carburizing gas under a reduced pressure. The steel member is then cooled in a cooling gas having a pressure lower than atmospheric pressure. A desired portion of the cooled steel member is then heated using high-density energy. The steel member is then quenched.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: August 16, 2011
    Assignee: AISIN AW Co., Ltd.
    Inventors: Takao Taniguchi, Hisao Shirai, Koji Ohbayashi, Kazuaki Okada, Hideo Kanisawa, Shuji Kozawa
  • Patent number: 7988796
    Abstract: A method of manufacturing a sheave member for a belt-type continuously variable transmission includes a forming step wherein an intermediate product having a sheave surface is formed by forging a steel material; a carburization step wherein the intermediate product is heated in a carburization gas; a gradual cooling step wherein the cooling speed is equal to or less than 20° C./sec, at least until the temperature of the intermediate product has passed through the transformation point; a high-frequency electrical heating step wherein a selected portion(s) of the intermediate product is heated; a water quenching step wherein the selected portion is quenched by contact with water; and a finishing step wherein a grinding process is applied to the intermediate product to attain the final shape. In the cooling step, preferably, the intermediate product is contacted with a cooling gas at a pressure lower than atmospheric pressure.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: August 2, 2011
    Assignee: Aisin AW Co., Ltd.
    Inventors: Kouji Ohbayashi, Kazuaki Okada, Taro Matsukawa, Yutaka Eto, Koki Mizuno, Kazumichi Tsukuda
  • Publication number: 20090328084
    Abstract: A pickup device (5) is provided with a pickup body (51) as a case; a heat source (61) thermally connected to the pickup body; and an optical component (13), which is fixed to the pickup body by a plurality of fixing sections including at least two fixing sections (131, 132) which are at different distances from the heat source and belong to the pickup body. The pickup body is provided with at least one of slits (100, 101) having prescribed widths, in a direction of reducing a binding force (F) which is a factor of preventing at last one fixing section (132) of the two fixing sections from being displaced due to thermal expansion in accordance with the distance from the heat source.
    Type: Application
    Filed: September 4, 2006
    Publication date: December 31, 2009
    Applicant: PIONEER CORPORATION
    Inventor: Kazuaki Okada
  • Publication number: 20090301608
    Abstract: A steel component formed by carburizing and then induction-hardening of a steel consisting essentially of, by mass, C: minimum 0.08% and less than 0.3%; Si: maximum 2.0%; Mn: from 0.2% to 3.0%; P: maximum 0.03%; S: from 0.005% to 0.05%; Ni: maximum 1.5%; Cr: maximum 3.0%; Mo: maximum 1.0%; O: maximum 0.0025%; and N: from 0.005% to 0.03%; and further including either or both of, by mass, Al: from 0.005% to 0.05%, and Ti: from 0.005% to 0.05%; and still further including either or both of, by mass, V: maximum 0.3%, and Nb: maximum 0.3%; and a balance including Fe and unavoidable impurities. The hardness of the surface layer is at least 55 HRC and the hardness of the core portion is from 20 to 50 HRC. The core portion does not include a martensite structure.
    Type: Application
    Filed: April 28, 2006
    Publication date: December 10, 2009
    Applicant: AISIN AW CO., LTD.
    Inventors: Takao Taniguchi, Hisao Shirai, Kouji Ohbayashi, Kazuaki Okada, Hideo Kanisawa, Shuji Kozawa
  • Publication number: 20090266449
    Abstract: A method of carburizing and quenching a steel member includes: a reduced pressure carburization step in which a steel member is contacted with carburization gas under reduced pressure, a slow cooling step in which the steel member is then slowly cooled in a cooling gas, and a quenching step of heating a selected portion of the cooled steel member using high-density energy and subsequently subjecting the selected portion to rapid cooling. The steel member subjected to the low-pressure carburization step includes a first portion in which a diffusion rate of carbon taken therein during carburization is high because of its shape and a second portion in which the diffusion rate of carbon is lower than that of the first portion. The reduced-pressure carburization step is controlled to give a carbon concentration at the surface of the first portion in a range of 0.65±0.1 weight % after diffusion.
    Type: Application
    Filed: April 22, 2009
    Publication date: October 29, 2009
    Applicant: AISIN AW CO., LTD.
    Inventors: Kouji OHBAYASHI, Kazuaki Okada
  • Publication number: 20090101246
    Abstract: The present invention provides a method for induction hardening of a steel member having an outer ring portion and, more specifically, for induction hardening of an outer circumferential surface of the outer ring portion. The method uses two pressing members, each of which includes a flat basal surface and a projecting portion projecting therefrom. Each of the projecting portions has a cross-section in the shape of a perfect circle. Also, the projecting portions have, on the outer circumferences thereof, respective pressing surfaces. While gaps are maintained between axial end faces of the outer ring portion and the basal surfaces of the pressing members, the pressing members are pressed against the outer ring portion so that the pressing surfaces each abut against the inner circumference side of the outer ring portion. While a biasing force is applied to the pressing members, the induction hardening process is applied to the outer circumferential surface.
    Type: Application
    Filed: October 21, 2005
    Publication date: April 23, 2009
    Applicant: AISIN AW CO., LTD.
    Inventors: Kouji Ohbayashi, Kazuaki Okada
  • Publication number: 20090084470
    Abstract: A reduced-pressure heat treatment jig is used for supporting a workpiece of iron when the workpiece is subjected to heat treatment in a reduced-pressure atmosphere in which pressure is reduced compared to atmospheric pressure. The jig is formed of an iron material and is formed with a film on at least a contact surface with the workpiece, the film being formed of a material which persists during the heat treatment. The film preferably includes a metal oxide having an evaporating temperature higher than the heat treatment temperature in the reduced-pressure atmosphere. The film preferably contains aluminum oxide.
    Type: Application
    Filed: September 25, 2008
    Publication date: April 2, 2009
    Applicant: AISIN AW CO., LTD.
    Inventors: Susumu KATO, Nozomu Shinkou, Moriyuki Tabata, Keita Taguchi, Kazuaki Okada
  • Publication number: 20080099107
    Abstract: A method of manufacturing a sheave member for a belt-type continuously variable transmission includes a forming step wherein an intermediate product having a sheave surface is formed by forging a steel material; a carburization step wherein the intermediate product is heated in a carburization gas; a gradual cooling step wherein the cooling speed is equal to or less than 20° C./sec, at least until the temperature of the intermediate product has passed through the transformation point; a high-frequency electrical heating step wherein a selected portion(s) of the intermediate product is heated; a water quenching step wherein the selected portion is quenched by contact with water; and a finishing step wherein a grinding process is applied to the intermediate product to attain the final shape. In the cooling step, preferably, the intermediate product is contacted with a cooling gas at a pressure lower than atmospheric pressure.
    Type: Application
    Filed: October 26, 2007
    Publication date: May 1, 2008
    Applicant: AISIN AW CO., LTD.
    Inventors: Kouji Ohbayashi, Kazuaki Okada, Taro Matsukawa, Yutaka Eto, Koki Mizuno, Kazumichi Tsukuda