Patents by Inventor Tetsuya Takeuchi

Tetsuya Takeuchi 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: 8653501
    Abstract: Provided is an emitting device which is capable of improving the luminous efficiency of an emitting layer formed using a group IV semiconductor material and obtaining an emission spectrum having a narrow band, and a manufacturing method therefor. The emitting device comprises: an emitting layer having a potential confinement structure, comprising: a well region comprising a group IV semiconductor material; and a barrier region being adjacent to the well region and comprising a group IV semiconductor material which is different from the group IV semiconductor material in the well region, wherein: a continuous region from the well region over an interface between the well region and the barrier region to a part of the barrier region comprises fine crystals; and a region in the barrier region, which is other than the continuous region comprising the fine crystals, is amorphous or polycrystalline region.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: February 18, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Takeuchi, Tatsuro Uchida, Mitsuhiro Ikuta
  • Publication number: 20130277859
    Abstract: A method of fabricating a semiconductor device includes forming a first insulation film over a semiconductor substrate, the semiconductor substrate including an outer region and an inner region located at an inner side of the outer region, forming a first wiring over the first insulation film in the inner region, forming a second insulation film over the first wiring and over the first insulation film, decreasing a film thickness of the second insulation film in the inner region with regard to a film thickness of the second insulation film in the outer region, and polishing the second insulation film after the decreasing of the film thickness of the second insulation film.
    Type: Application
    Filed: January 8, 2013
    Publication date: October 24, 2013
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Tomiyasu Saito, Tatsuya Mise, Hiromichi Ichikawa, Tetsuya Takeuchi, Genshi Okuda
  • Patent number: 8545648
    Abstract: Disclosed is a method for producing a heat insulating laminate structure having an excellent solar radiation shielding capability as well as an excellent radio wave transparency. The method includes placing a transparent laminate film between two transparent substrates, the transparent laminate film having on at least one side of a transparent polymer film a laminated layer structure in which a metal oxide layer containing an organic component and a metal layer are laminated and grooves having widths of 30 ?m or less are formed with dividing the metal layer; bonding the two substrates to each other through the transparent laminate film under application of a pressure; and promoting division of the metal layer in the transparent laminate film by the applied pressure to increase an overall surface resistance.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: October 1, 2013
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Hiroki Inagaki, Tetsuya Takeuchi, Tetsuji Narasaki, Masataka Inuzuka, Osamu Goto
  • Publication number: 20130248091
    Abstract: A transparent laminate film which has visible light transmittance, sunlight blocking properties, radio wave transmittance and good appearance is provided. A transparent laminate film includes a laminate structure formed on at least one side of a transparent polymer film, in which a metal oxide layer and a metal layer are laminated, the metal oxide layer containing an organic component, wherein grooves having a width of 30 ?m or less are formed in the laminate structure, and an overall surface resistance is 150?/? or more. Preferably, the grooves are numerous cracks, or are formed by laser processing. Further, preferably, the transparent polymer film has an easy adhesion layer formed on at least one side thereof, and the laminate structure is formed on top of the easy adhesion layer. Furthermore, preferably, the metal oxide layer containing the organic component is formed by a sol-gel method using optical energy during sol-gel curing.
    Type: Application
    Filed: May 13, 2013
    Publication date: September 26, 2013
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Masataka INUDUKA, Tetsuya TAKEUCHI, Hiroki INAGAKI, Tetsuji NARASAKI, Taiji NISHITANI
  • Patent number: 8455086
    Abstract: A transparent laminate film which has visible light transmittance, sunlight blocking properties, radio wave transmittance and good appearance is provided. A transparent laminate film includes a laminate structure formed on at least one side of a transparent polymer film, in which a metal oxide layer and a metal layer are laminated, the metal oxide layer containing an organic component, wherein grooves having a width of 30 ?m or less are formed in the laminate structure, and an overall surface resistance is 150 ?/? or more. Preferably, the grooves are numerous cracks, or are formed by laser processing. Further, preferably, the transparent polymer film has an easy adhesion layer formed on at least one side thereof, and the laminate structure is formed on top of the easy adhesion layer. Furthermore, preferably, the metal oxide layer containing the organic component is formed by a sol-gel method using optical energy during sol-gel curing.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: June 4, 2013
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Masataka Inuduka, Tetsuya Takeuchi, Hiroki Inagaki, Tetsuji Narasaki, Taiji Nishitani
  • Patent number: 8416824
    Abstract: A surface emitting laser is provided which can control a beam shape and can provide higher efficiency and higher power. The surface emitting laser includes a gain region that is provided between a first semiconductor multilayer film reflection mirror and a second semiconductor multilayer film reflection mirror, which are arranged so as to oppose to each other, and that has a first active layer and a second active layer. The surface emitting laser has a current constriction layer for constricting an electric current which is injected into the first active layer and the second active layer. The first active layer and the second active layer have different active layer structures from each other.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: April 9, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Takeuchi, Yoshinobu Sekiguchi
  • Publication number: 20130004727
    Abstract: Disclosed is a method for producing a heat insulating laminate structure having an excellent solar radiation shielding capability as well as an excellent radio wave transparency. The method includes placing a transparent laminate film between two transparent substrates, the transparent laminate film having on at least one side of a transparent polymer film a laminated layer structure in which a metal oxide layer containing an organic component and a metal layer are laminated and grooves having widths of 30 ?m or less are formed with dividing the metal layer; bonding the two substrates to each other through the transparent laminate film under application of a pressure; and promoting division of the metal layer in the transparent laminate film by the applied pressure to increase an overall surface resistance.
    Type: Application
    Filed: August 29, 2012
    Publication date: January 3, 2013
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Hiroki INAGAKI, Tetsuya TAKEUCHI, Tetsuji NARASAKI, Masataka INUZUKA, Osamu GOTO
  • Patent number: 8249125
    Abstract: Provided are an optical device including a multilayer reflector having a layer whose optical thickness is not ?/4, and a vertical cavity surface emitting laser using the optical device. A resonance frequency shift or a reduction in reflectivity which is caused by a deviation from an optical thickness of ?/4 can be suppressed to improve characteristics and yield. The optical device for generating light of a wavelength ? includes a reflector and an active layer. The reflector is a semiconductor multilayer reflector including a first layer and a second layer which are alternatively laminated and have different refractive indices. The first layer has an optical thickness smaller than ?/4. The second layer has an optical thickness larger than ?/4. The interface between the first layer and the second layer is located at neither a node nor an antinode of an optical intensity distribution within the reflector.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: August 21, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tetsuya Takeuchi
  • Patent number: 8228965
    Abstract: A surface emitting laser which is configured by laminating on a substrate a lower reflection mirror, an active layer, and an upper reflection mirror, which includes, in a light emitting section of the upper reflection mirror, a structure for controlling reflectance that is configured by a low reflectance region and a concave high reflectance region formed in the central portion of the low reflectance region, and which oscillates at a wavelength of ?, wherein the upper reflection mirror is configured by a multilayer film reflection mirror based on a laminated structure formed by laminating a plurality of layers, the multilayer film reflection mirror includes a phase adjusting layer which has an optical thickness in the range of ?/8 to 3?/8 inclusive in a light emitting peripheral portion on the multilayer film reflection mirror, and an absorption layer causing band-to-band absorption is provided in the phase adjusting layer.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: July 24, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tetsuya Takeuchi
  • Patent number: 8164104
    Abstract: A light emitting element array including an active layer commonly used for light emitting element regions, carrier injection layers which are electrically isolated from each other and which are provided in the respective light emitting element regions, and a resistive layer which has a resistance higher than that of the carrier injection layers and which is provided between the active layer and the carrier injection layers.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: April 24, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tetsuya Takeuchi
  • Publication number: 20120076163
    Abstract: A surface emitting laser is provided which can control a beam shape and can provide higher efficiency and higher power. The surface emitting laser includes a gain region that is provided between a first semiconductor multilayer film reflection mirror and a second semiconductor multilayer film reflection mirror, which are arranged so as to oppose to each other, and that has a first active layer and a second active layer. The surface emitting laser has a current constriction layer for constricting an electric current which is injected into the first active layer and the second active layer. The first active layer and the second active layer have different active layer structures from each other.
    Type: Application
    Filed: July 2, 2010
    Publication date: March 29, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuya Takeuchi, Yoshinobu Sekiguchi
  • Publication number: 20120076986
    Abstract: A transparent laminate film which has visible light transmittance, sunlight blocking properties, radio wave transmittance and good appearance is provided. A transparent laminate film includes a laminate structure formed on at least one side of a transparent polymer film, in which a metal oxide layer and a metal layer are laminated, the metal oxide layer containing an organic component, wherein grooves having a width of 30 ?m or less are formed in the laminate structure, and an overall surface resistance is 150 ?/? or more. Preferably, the grooves are numerous cracks, or are formed by laser processing. Further, preferably, the transparent polymer film has an easy adhesion layer formed on at least one side thereof, and the laminate structure is formed on top of the easy adhesion layer. Furthermore, preferably, the metal oxide layer containing the organic component is formed by a sol-gel method using optical energy during sol-gel curing.
    Type: Application
    Filed: December 1, 2011
    Publication date: March 29, 2012
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Masataka INUDUKA, Tetsuya TAKEUCHI, Hiroki INAGAKI, Tetsuji NARASAKI, Taiji NISHITANI
  • Patent number: 8116344
    Abstract: A red surface emitting laser element includes a first reflector, a second reflector including a p-type semiconductor multilayer film, an active layer between the first reflector and the second reflector, and a p-type semiconductor spacer layer between the active layer and the second reflector, the p-type semiconductor spacer layer having a thickness of 100 nm or more and 350 nm or less.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: February 14, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Takeuchi, Mamoru Uchida, Tomoyuki Miyamoto, Fumio Koyama
  • Patent number: 8116345
    Abstract: A surface emitting laser includes first mirror, a second mirror, and an active layer formed between the first mirror and the second mirror. A third mirror is formed between the first mirror and the active layer. A first cavity is constituted by the first mirror and the second mirror, and a second cavity is constituted by the first mirror and the third mirror.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: February 14, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tetsuya Takeuchi
  • Publication number: 20120032143
    Abstract: Provided is an emitting device which is capable of improving the luminous efficiency of an emitting layer formed using a group IV semiconductor material and obtaining an emission spectrum having a narrow band, and a manufacturing method therefor. The emitting device comprises: an emitting layer having a potential confinement structure, comprising: a well region comprising a group IV semiconductor material; and a barrier region being adjacent to the well region and comprising a group IV semiconductor material which is different from the group IV semiconductor material in the well region, wherein: a continuous region from the well region over an interface between the well region and the barrier region to a part of the barrier region comprises fine crystals; and a region in the barrier region, which is other than the continuous region comprising the fine crystals, is amorphous or polycrystalline region.
    Type: Application
    Filed: October 13, 2011
    Publication date: February 9, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsuya Takeuchi, Tatsuro Uchida, Mitsuhiro Ikuta
  • Patent number: 8073035
    Abstract: A surface emitting laser configured by laminating on a substrate a lower reflection mirror, an active layer and an upper reflection mirror includes, in a light emitting section of the upper reflection mirror, a structure for controlling reflectance that is configured by a low reflectance region and a convex high reflectance region formed in the central portion of the low reflectance region, and which oscillates at a wavelength of ?, wherein the upper reflection mirror is configured by a multilayer film reflection mirror based on a laminated structure formed by laminating a plurality of layers, and an absorption layer causing band-to-band absorption is provided in the laminated structure.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: December 6, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tetsuya Takeuchi
  • Publication number: 20110293331
    Abstract: This invention provides a surface-emitting laser that can prevent delamination at the interface of a selective oxidation layer and a spacer layer, while suppressing any rise of voltage, to improve the reliability of operation.
    Type: Application
    Filed: May 19, 2011
    Publication date: December 1, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yasuhisa Inao, Mitsuhiro Ikuta, Tetsuya Takeuchi
  • Publication number: 20110262742
    Abstract: A transparent laminated film is provided with which it is possible to inhibit peeling of thin film layers, even with long-term exposure to sunlight during use and exposure to UV rays during quality evaluation. The film has a thin film layer obtained by lamination of multiple thin films on at least one side of a transparent polymer film. This thin film layer has metal oxide thin films formed by a sol-gel process using light energy during sol-gel hardening and post-oxidation thin films formed by post-oxidation of at least one thin film selected from metal thin film, alloy thin film, and partially oxidized metal oxide thin film.
    Type: Application
    Filed: December 22, 2009
    Publication date: October 27, 2011
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Tetsuya Takeuchi, Yoshihiro Tokunaga, Tetsuji Narasaki, Hiroki Inagaki, Masataka Inuzuka
  • Patent number: 8031753
    Abstract: A red surface emitting laser element includes a first reflector, a second reflector including a p-type semiconductor multilayer film, an active layer between the first reflector and the second reflector, and a p-type semiconductor spacer layer between the active layer and the second reflector, the p-type semiconductor spacer layer having a thickness of 100 nm or more and 350 nm or less.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: October 4, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Takeuchi, Mamoru Uchida, Tomoyuki Miyamoto, Fumio Koyama
  • Patent number: 7967654
    Abstract: An organic electroluminescence element has a layered structure on a surface of a transparent substrate. The layered structure comprises an organic material layer including a light-emitting organic material layer, an opaque electrode layer, an insulating layer, a metal layer and a resin film in order. The organic electroluminescence element is improved in durability because moisture is prevented from permeating into a light-emitting element.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: June 28, 2011
    Assignees: Tokai Rubber Industries, Ltd.
    Inventors: Yoshio Taniguchi, Masato Sugiyama, Shingo Hibino, Tetsuya Takeuchi, Ryo Minoshima