Patents by Inventor Takuji Oyama

Takuji Oyama 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: 20210132273
    Abstract: An optical member includes a transparent substrate containing at least one substance selected from glass, a glass ceramic, silicon, and sapphire, and having an infrared high-transmittance region in which an optical transmittance is 78% or more in a wavelength band of 700 nm to 1800 nm; and an optical interference film disposed on a main surface of the transparent substrate corresponding to the infrared high-transmittance region, wherein a transmittance of light, of the optical member, of at least one wavelength ?3 in the wavelength band of 700 nm to 1800 nm in a region of the optical member corresponding to the infrared high-transmittance region of the transparent substrate has a minimum value of 86.5% or more and has a difference between the minimum value and a maximum value of 9% or less in a range where an incidence angle is from 0 degrees to 60 degrees.
    Type: Application
    Filed: January 11, 2021
    Publication date: May 6, 2021
    Applicant: AGC Inc.
    Inventors: Hiroyuki YAMAMOTO, Takahiro MASHIMO, Takuji OYAMA, Shinya TAHARA, Tatsuo NAGASHIMA
  • Publication number: 20190049809
    Abstract: An electrochromic element which suppresses ripples in a color-reduction state and with which good visible light transmittance can be obtained is provided. An electrochromic element 100 includes: a transparent electrolyte layer 110; a pair of solid electrochromic layers which sandwiches the transparent electrolyte layer and is constituted by a pair of a reduction coloring-type solid electrochromic layer 120 and an oxidation coloring-type solid electrochromic layer 130 opposing each other, and a pair of transparent conductive films 140, where in the thickness and refractive indexe with respect to light at a wavelength of 550 nm about the transparent electrolyte layer 140, the reduction coloring-type solid electrochromic layer 120 and the oxidation coloring-type solid electrochromic layer 130, those values are provided so as to satisfy predetermined relations to suppress the ripples.
    Type: Application
    Filed: October 17, 2018
    Publication date: February 14, 2019
    Applicant: AGC Inc.
    Inventors: Takuji OYAMA, Teppei KONISHI, Shinya TAHARA, Hiroshi KUMAI
  • Patent number: 10088730
    Abstract: There is provided an optical element which is an apodized filter capable of externally controlling an optical characteristic and stable over a long period. An optical element 100 is an optical element including: a transparent electrolyte layer 110; a pair of solid electrochromic layers which sandwiches the transparent electrolyte layer 110; and further a pair of transparent conductive films 140 which sandwiches a pair of the solid electrochromic layer, wherein a pair of the solid electrochromic layers is constituted by a reduction coloring-type solid electrochromic layer 120 and an oxidation coloring-type solid electrochromic layer 130 opposing each other, the optical element including: an apodized characteristic in which transmittance increases gradually from an outer periphery toward a center in a plane orthogonal to a thickness direction of the transparent electrolyte layer 110.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: October 2, 2018
    Assignee: AGC Inc.
    Inventors: Hiroshi Kumai, Shinya Tahara, Teppei Konishi, Koichi Nakagawa, Takuji Oyama, Satoshi Umeda
  • Publication number: 20170219901
    Abstract: There is provided an optical element which is an apodized filter capable of externally controlling an optical characteristic and stable over a long period. An optical element 100 is an optical element including: a transparent electrolyte layer 110; a pair of solid electrochromic layers which sandwiches the transparent electrolyte layer 110; and further a pair of transparent conductive films 140 which sandwiches a pair of the solid electrochromic layer, wherein a pair of the solid electrochromic layers is constituted by a reduction coloring-type solid electrochromic layer 120 and an oxidation coloring-type solid electrochromic layer 130 opposing each other, the optical element including: an apodized characteristic in which transmittance increases gradually from an outer periphery toward a center in a plane orthogonal to a thickness direction of the transparent electrolyte layer 110.
    Type: Application
    Filed: April 20, 2017
    Publication date: August 3, 2017
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Hiroshi KUMAI, Shinya TAHARA, Teppei KONISHI, Koichi NAKAGAWA, Takuji OYAMA, Satoshi UMEDA
  • Patent number: 8942619
    Abstract: A relay device includes a receiver, an information obtaining unit, a parameter storage unit, and a parameter setting unit, and relays a packet which is transmitted from a first network to a second network. The receiver receives the packet from the first network. The information obtaining unit obtains data type information for identifying a type of data which is transmitted and received by the packet. The parameter storage unit stores a control parameter which is used for controlling communication quality in the second network, so as to be associated with a type of transfer data indicating data transferred to the second network. The parameter setting unit sets to the packet the control parameter which is associated with transfer data of a same type as data identified by the data type information, and outputs the packet to which the control parameter is set to the second network.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: January 27, 2015
    Assignee: Fujitsu Limited
    Inventors: Kiyomi Hasesaka, Takuji Oyama, Keiichiro Yamakawa
  • Patent number: 8493944
    Abstract: Access points are grouped into access point groups. An access point group table that stores correlation between the access point groups and the access points and a terminal position table that manages the correlation between the access point groups and a terminal are provided for a position managing server that manages the position of the terminal. An access point notifies the position managing server of the identifier of the access point itself and the identifier of the terminal being connected to the access point. In the position managing server, an access point group to which the access point belongs is found by searching the access point group table. The terminal is registered in the column of “access point group” of the terminal position table.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: July 23, 2013
    Assignee: Fujitsu Limited
    Inventors: Hidehiko Suzuki, Tatsuhiro Ando, Takuji Oyama
  • Publication number: 20130059527
    Abstract: A relay device includes a receiver, an information obtaining unit, a parameter storage unit, and a parameter setting unit, and relays a packet which is transmitted from a first network to a second network. The receiver receives the packet from the first network. The information obtaining unit obtains data type information for identifying a type of data which is transmitted and received by the packet. The parameter storage unit stores a control parameter which is used for controlling communication quality in the second network, so as to be associated with a type of transfer data indicating data transferred to the second network. The parameter setting unit sets to the packet the control parameter which is associated with transfer data of a same type as data identified by the data type information, and outputs the packet to which the control parameter is set to the second network.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 7, 2013
    Applicant: FUJITSU LIMITED
    Inventors: Kiyomi HASESAKA, Takuji OYAMA, Keiichiro YAMAKAWA
  • Patent number: 8048531
    Abstract: A protective plate for a plasma display comprises conductive substrate for protecting a plasma display and an electrode in electrical contact with the conductive substrate.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: November 1, 2011
    Assignee: Asahi Glass Company Ltd.
    Inventors: Nobuyoshi Sakurada, Toshihiro Ajikata, Kouichi Osada, Ken Moriwaki, Katsuaki Aikawa, Kazuyoshi Noda, Takuji Oyama
  • Patent number: 8010125
    Abstract: Provided is a technology by which a relay node relaying communications of a terminal detects a movement of the terminal and updates, as triggered by this movement of the terminal, information of a call processing device, thereby shortening a (period of) status in which a location of the terminal remains not to be coincident with location information registered in the call processing device. A system of the invention has a call control device performing call control between terminals on the basis of location information of the terminals, a location management device managing information about locations of the terminals and a relay node relaying communications of the terminals, wherein the relay node detects a connecting status with the terminal, and, when the connecting status with the terminal is changed, notifies the call control device of an update of the location information through the location management device.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: August 30, 2011
    Assignee: Fujitsu Limited
    Inventor: Takuji Oyama
  • Publication number: 20110132442
    Abstract: To provide a transparent conductive film substrate, which is less likely to lead to a leak of an electric current by the concentration of an electric field, and which is less likely to lead to deterioration of the photoelectric conversion performance, when applied to a photoelectric conversion device such as a solar cell, and which further has a high light transmittance, and a solar cell using this substrate.
    Type: Application
    Filed: February 3, 2011
    Publication date: June 9, 2011
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Seiji HIGASHI, Takuji Oyama
  • Patent number: 7749622
    Abstract: A multilayer film-coated substrate having the stress of the film relaxed by depositing a multilayer film comprising a metal oxide film and a silicon oxide film on a substrate at a high speed by a sputtering method using a conductive sputtering material, and a process for producing a multilayer film-coated substrate having such a low stress, are presented. A multilayer film-coated substrate comprising a substrate and at least a metal oxide film and a silicon oxide film laminated thereon repeatedly at least once, wherein at least one layer of said metal oxide film is a metal oxide film deposited by sputtering by using, as the target material, a metal oxide MOX which is deficient in oxygen than the stoichiometric composition, to have the oxygen deficiency resolved, and the stress of the multilayer film is from ?100 MPa to +100 MPa.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: July 6, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Tomohiro Yamada, Eiji Shidoji, Akira Mitsui, Takuji Oyama, Toshihisa Kamiyama
  • Patent number: 7693507
    Abstract: A wireless LAN control device includes a wireless LAN control unit having a transmitting/receiving unit performing communications with a plurality of wireless LAN access points belonging to different user groups and a wireless LAN connection control unit. The wireless connection control unit executes control of transferring a user authentication request received by the transmitting/receiving unit via one of the plurality of wireless LAN access points and given from a wireless LAN terminal belonging to one of the user groups toward an authentication server that should execute an authentication process in response to the user authentication request, and transmitting an authentication result given from the authentication server in response to the user authentication request to the wireless LAN terminal via one of the plurality of wireless LAN access points.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: April 6, 2010
    Assignee: Fujitsu Limited
    Inventors: Hidehiko Suzuki, Yoshihiro Kubota, Tatsuhiro Ando, Takuji Oyama
  • Patent number: 7545743
    Abstract: A router particularly providing a P2P traffic supporting router which discriminates and effectively controls P2P (Peer to Peer) traffic transmitted in a network. The router comprises a router part to execute a router function, a discrimination part to discriminate P2P traffic from input traffic, an assignment part to assign discrimination information to the P2P traffic discriminated in the traffic discrimination part, a notification part to create notification information to notify the discrimination information to other routers, and a controller to control the discriminated P2P traffic, wherein the router part outputs the notification information according to directions from the notification part and outputs P2P traffic containing the discrimination information according to directions from the controller.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: June 9, 2009
    Assignee: Fujitsu Limited
    Inventors: Takuji Oyama, Masatoshi Kumagai
  • Publication number: 20080118762
    Abstract: To provide an electromagnetic wave shielding film for a PDP having a low luminous reflectance even without providing a protective film, and a protective plate for a PDP having a low luminous reflectance using the electromagnetic wave shielding film for a PDP. An electromagnetic wave shielding film 10, which comprises a substrate 11 and an electroconductive film 12, wherein the electroconductive film 12 has a multilayer structure in which (n+1) (wherein n is an integer of from 3 to 5) inorganic layers 12a having a refractive index of from 1.55 to 2.5 and n metal layers 12b are alternately laminated from the substrate 11 side; each inorganic layer 12a is a layer containing at least one member selected from a metal oxide, a metal nitride and a metal oxynitride; each metal layer 12b is a layer made of pure silver or a silver alloy; and the second to n-th metal layers from the substrate are thicker than the first metal layer from the substrate, is used.
    Type: Application
    Filed: January 7, 2008
    Publication date: May 22, 2008
    Applicant: Asahi Glass Company, Limited
    Inventors: Tamotsu Morimoto, Masaaki Konishi, Masato Kawasaki, Takuji Oyama
  • Publication number: 20080017502
    Abstract: A Ti oxide film is produced by a process comprising sputtering a Ti oxide film on a substrate in an atmosphere of at least one gas selected from the group consisting of a rare gas, a nitrogen-containing gas and an oxygen-containing gas within a chamber by means of a sputtering target composed of TiOx (1<x<2), wherein the total content of titanium and oxygen is at least 99.0 mass %, and firing the Ti oxide film in the presence of oxygen at a temperature ranging from 400 to 750° C. for a time ranging from 1 to 28 minutes.
    Type: Application
    Filed: August 17, 2007
    Publication date: January 24, 2008
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Makoto Fukawa, Hidefumi Odaka, Takuji Oyama, Akira Mitsui
  • Publication number: 20070268896
    Abstract: The present invention provides a communication system facilitating introduction into an existing network and improving a quality of service of communications. The communication system is configured by connecting a relay device performing wireless communications with a terminal, a management device managing the relay device and a server to each other via an IP network, the relay device has a packet generating unit generating an encapsulated packet containing, as a payload, and transferring unit transferring the encapsulated packet to the management device, and the management device has a receiving unit receiving the encapsulated packet transmitted from the relay device, and a transmitting unit transmitting a predetermined encapsulated packet in the encapsulated packets received by the receiving unit back to the relay device.
    Type: Application
    Filed: January 4, 2007
    Publication date: November 22, 2007
    Inventors: Takuji Oyama, Hidehiko Suzuki, Tatsuhiro Ando
  • Publication number: 20070228369
    Abstract: A process for producing a substratum with conductive film excellent in surface smoothness, is provided which does not require complicated steps after film-forming such as heating treatment, polishing of film surface or oxygen plasma treatment after film-forming. The present invention provides a substratum with conductive film comprising a substratum and a conductive film containing tin-doped indium oxide as the main component, wherein a foundation film containing zirconium oxide doped with yttrium oxide as the main component is formed on the substratum side of the conductive film, and wherein the content of yttrium oxide in the foundation film is preferably from 0.1 to 50 mol % based on the total amount of Y2O3 and ZrO2.
    Type: Application
    Filed: June 7, 2007
    Publication date: October 4, 2007
    Applicant: ASAHI GLASS CO., LTD.
    Inventors: Susumu Suzuki, Akira Mitsui, Kazuya Yaoita, Takuji Oyama
  • Publication number: 20070230422
    Abstract: Access points are grouped into access point groups. An access point group table that stores correlation between the access point groups and the access points and a terminal position table that manages the correlation between the access point groups and a terminal are provided for a position managing server that manages the position of the terminal. An access point notifies the position managing server of the identifier of the access point itself and the identifier of the terminal being connected to the access point. In the position managing server, an access point group to which the access point belongs is found by searching the access point group table. The terminal is registered in the column of “access point group” of the terminal position table.
    Type: Application
    Filed: January 3, 2007
    Publication date: October 4, 2007
    Inventors: Hidehiko Suzuki, Tatsuhiro Ando, Takuji Oyama
  • Publication number: 20070211664
    Abstract: A communication relay apparatus is provided that shortens the time of communication relay during handovers, while reducing the load on communication relay apparatuses so as to enable application to large-scale networks. The communication relay apparatus sets static tunnels only with communication relay apparatuses for which the frequency of handovers is high and with communication relay apparatuses for which the probability of occurrence of handovers is high, and sets dynamic tunnels with other communication relay apparatuses. For communication relay apparatuses with which static tunnels are set, data packets are transferred via the static tunnel; for communication relay apparatuses with which static tunnels are not set, a dynamic tunnel is set, and data packets are transferred via the dynamic tunnel.
    Type: Application
    Filed: August 16, 2006
    Publication date: September 13, 2007
    Inventors: Takuji Oyama, Hidehiko Suzuki, Tatsuhiro Ando
  • Patent number: 7264881
    Abstract: A protective plate for a plasma display comprises conductive substrate for protecting a plasma display and an electrode in electrical contact with the conductive substrate.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: September 4, 2007
    Assignee: Asahi Glass Company Ltd.
    Inventors: Nobuyoshi Sakurada, Toshihiro Ajikata, Kouichi Osada, Ken Moriwaki, Katsuaki Aikawa, Kazuyoshi Noda, Takuji Oyama