Patents by Inventor Takashi Takahashi

Takashi Takahashi 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: 20120082986
    Abstract: The present inventors revealed a TTF-1-specific oncogenic process by elucidating the molecular mechanism regulated by the master regulatory factor TTF-1. The present inventors focused on the elucidation of the essence of the lineage-specific survival signal which is a novel canceration signal. Thus, the present inventors found that the expression of ROR1, which is a receptor tyrosine kinase, is induced by the master regulatory factor TTF-1, and demonstrated the presence of a characteristic canceration signal transduction system.
    Type: Application
    Filed: July 17, 2009
    Publication date: April 5, 2012
    Applicant: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
    Inventors: Takashi Takahashi, Tomoya Yamaguchi, Shuta Tomida
  • Publication number: 20120040515
    Abstract: A semiconductor light-emitting device has a semiconductor layer containing Al between a substrate and an active layer containing nitrogen, wherein Al and oxygen are removed from a growth chamber before growing said active layer and a concentration of oxygen incorporated into said active layer together with Al is set to a level such that said semiconductor light-emitting device can perform a continuous laser oscillation at room temperature.
    Type: Application
    Filed: June 21, 2011
    Publication date: February 16, 2012
    Inventors: Takashi Takahashi, Morimasa Kaminishi, Shunichi Sato, Akihiro Itoh, Naoto Jikutani
  • Publication number: 20110293618
    Abstract: The present invention provides novel antibodies that recognize the extracellular domain of a human CLCP1 antigen; nucleic acids encoding the antibodies; vectors carrying the nucleic acids in an expressible manner; transformed cells containing the vectors; methods for producing the antibodies; diagnostic methods for cancer or prognosis of cancer, immunohistological or immunocytological assay methods, and kits for determining the expression level of CLCP1 in cells or tissues, all of which use the antibodies; pharmaceutical compositions comprising the antibodies; agents for treating or preventing CLCP1-expressing cancer; agents for inhibiting growth, migration, invasion, or metastasis of CLCP1-expressing cancer cells; immunostaining agents for staining CLCP1-expressing cancer cells; and agents for treating or preventing CLCP1-expressing tumor.
    Type: Application
    Filed: July 16, 2009
    Publication date: December 1, 2011
    Applicants: Medical and Biological Laboratories Co., Ltd., Oncomics Co., Ltd.
    Inventors: Ken-ichiro Ono, Takashi Takahashi
  • Publication number: 20110294850
    Abstract: The present invention provides a novel indoline derivative or a pharmacologically acceptable salt thereof or a solvate of the derivative or a salt thereof represented by the following formula (1) that has an excellent butyrylcholinesterase inhibitory activity. In the formula, R1 represents an alkyl group, a cycloalkyl group, a heterocycloalkyl group, an aryl group, a heteroaryl group, an arylalkyl group, a heteroarylalkyl group, a cycloalkylalkyl group, a heterocycloalkylalkyl group, a dihydrofurylalkyl group, an alkenyl group, a tetrahydronaphthyl group, or an indanyl group; R2 represents a hydrogen atom, an alkyl group, an arylalkyl group, a cycloalkylalkyl group, a heteroarylalkyl group, a heterocycloalkylalkyl group, an aryl group, or an acyl group; R3 each independently represents a hydrogen atom, an alkyl group, or a dialkylaminocarbonyl group; R4 each independently represents a hydrogen atom or an alkyl group; and R5 represents a hydrogen atom or an alkyl group.
    Type: Application
    Filed: February 3, 2010
    Publication date: December 1, 2011
    Applicants: TOKYO INSTITUTE OF TECHNOLOGY, KYOTO UNIVERSITY
    Inventors: Hachiro Sugimoto, Jun Takahashi, Takashi Takahashi, Ichiro Hijikuro
  • Patent number: 8009714
    Abstract: A laser diode includes a substrate having a lattice constant of GaAs or between GaAs and GaP, a first cladding layer of AlGaInP formed on the substrate, an active layer of GaInAsP formed on the first cladding layer, an etching stopper layer of GaInP formed on the active layer, a pair of current-blocking regions of AlGaInP formed on the etching stopper layer so as to define a strip region therebetween, an optical waveguide layer of AlGaInP formed on the pair of current-blocking regions so as to cover the etching stopper layer in the stripe region, and a second cladding layer of AlGaInP formed on the optical waveguide layer, wherein the current-blocking regions having an Al content substantially identical with an Al content of the second cladding layer.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: August 30, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Naoto Jikutani, Takashi Takahashi, Shunichi Sato
  • Patent number: 7968362
    Abstract: A semiconductor light-emitting device has a semiconductor layer containing Al between a substrate and an active layer containing nitrogen, wherein Al and oxygen are removed from a growth chamber before growing said active layer and a concentration of oxygen incorporated into said active layer together with Al is set to a level such that said semiconductor light-emitting device can perform a continuous laser oscillation at room temperature.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: June 28, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Takashi Takahashi, Morimasa Kaminishi, Shunichi Sato, Akihiro Itoh, Naoto Jikutani
  • Publication number: 20110111689
    Abstract: A total heat exchanger unit includes a controller for, upon receipt of a stop signal for stopping optional ventilation operation, terminating the optional ventilation operation and starting forced ventilation operation, and upon receipt of a start signal for starting the optional ventilation operation, terminating the forced ventilation operation and starting the optional ventilation operation. The controller allows intermittent operation of an air supply fan and an exhaust fan during the forced ventilation operation.
    Type: Application
    Filed: June 18, 2009
    Publication date: May 12, 2011
    Inventors: Nobumasa Takeuchi, Takashi Takahashi, Yoshitaka Matsugi
  • Patent number: 7940827
    Abstract: A vertical-cavity, surface-emission-type laser diode includes an optical cavity formed of an active region sandwiched by upper and lower reflectors, wherein the lower reflector is formed of a distributed Bragg reflector and a non-optical recombination elimination layer is provided between an active layer in the active region and the lower reflector.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: May 10, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Shunichi Sato, Takashi Takahashi, Naoto Jikutani, Morimasa Kaminishi, Akihiro Itoh
  • Publication number: 20110096214
    Abstract: According to one embodiment, a solid-state imaging device includes a photoelectric conversion element, a light blocking section, and a protective layer. The protective layer protects the photoelectric conversion element and the light blocking section. A step section is formed on a surface of the protective layer. The step section is formed having a difference in height in a direction perpendicular to an irradiation surface of the photoelectric conversion element. The step section is provided in the light receiving area.
    Type: Application
    Filed: September 14, 2010
    Publication date: April 28, 2011
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takeshi FUSHIMI, Takashi Takahashi, Junichi Ide, Yasushi Itabashi, Koji Yoshikawa
  • Publication number: 20110081652
    Abstract: The present invention provides a method of confirming the gene expression, useful in the decision of a five year survival rate of a patient with lung cancer and the use of a DNA probe kit in the method. A method useful in the decision of a survival rate of a patient with non-small cell lung cancer comprising confirming the expression strength of at least one gene in lung cancer tissues isolated from the patient.
    Type: Application
    Filed: November 9, 2010
    Publication date: April 7, 2011
    Applicants: Aichi Preferecture, FUJIFILM Corporation
    Inventors: Takashi TAKAHASHI, Shuta Tomita, Tetsuya Mitsudomi, Yasushi Yatabe, Nobuhiko Ogura, Masato Some
  • Publication number: 20110082295
    Abstract: To develop a highly safe measure to treat Alzheimer's disease using a secretase-inhibiting substance, there is provided a compound represented by the following general formula (I) or a salt thereof: wherein A represents a phenyl group or the like, R1 represents a chlorine atom, a bromine atom, or a nitro group or the like, R2, R3, R4, and R5 each represent a hydrogen atom or the like, and L represents CH2—CH2 or CH?CH.
    Type: Application
    Filed: May 27, 2009
    Publication date: April 7, 2011
    Applicants: Tokyo Institute of Technology, Kyoto University
    Inventors: Hachiro Sugimoto, Takashi Takahashi, Ichiro Hijikuro, Michiaki Okuda
  • Publication number: 20110026108
    Abstract: An integrated semiconductor optical-emitting device includes a surface-emission laser diode and an EA-type semiconductor optical modulator integrated commonly on a GaAs substrate in a direction perpendicular to the GaAs substrate.
    Type: Application
    Filed: September 15, 2010
    Publication date: February 3, 2011
    Inventors: Takashi Takahashi, Shunichi Sato
  • Patent number: 7881357
    Abstract: In a vertical cavity surface-emitting semiconductor laser device, first and second resonance wavelengths which are different are provided while a first resonator and a second resonator are coupled optically, and a gain of an active layer at the first resonance wavelength on the side of short wavelength is higher than that at the second resonance wavelength on the side of long wavelength. An absorption coefficient of an optical absorption layer when no electric field is applied is small for the first and second resonance wavelengths, and when an electric field is applied, an absorption coefficient of the optical absorption layer for the first resonance wavelength on the side of short wavelength is larger than that for the second resonance wavelength on the side of long wavelength.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: February 1, 2011
    Assignee: Ricoh Company, Ltd.
    Inventor: Takashi Takahashi
  • Patent number: 7872270
    Abstract: A semiconductor light emitter includes a quantum well active layer which includes nitrogen and at least one other Group-V element, and barrier layers which are provided alongside the quantum well active layer, wherein the quantum well active layer and the barrier layers together constitute an active layer, wherein the barrier layers are formed of a Group-III-V mixed-crystal semiconductor that includes nitrogen and at least one other Group-V element, a nitrogen composition thereof being smaller than that of the quantum well active layer.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: January 18, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Takashi Takahashi, Shunichi Sato, Morimasa Kaminishi
  • Patent number: 7856318
    Abstract: The present invention provides a method of confirming the gene expression, useful in the decision of a five year survival rate of a patient with lung cancer and the use of a DNA probe kit in the method. A method useful in the decision of a survival rate of a patient with non-small cell lung cancer comprising confirming the expression strength of at least one gene selected from the group consisting of in lung cancer tissues isolated from the patient.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: December 21, 2010
    Assignees: Aichi Prefecture, FUJIFILM Corporation
    Inventors: Takashi Takahashi, Shuta Tomita, Tetsuya Mitsudomi, Yasushi Yatabe, Nobuhiko Ogura, Masato Some
  • Patent number: 7848377
    Abstract: A vertical-cavity, surface-emission-type laser diode includes an optical cavity formed of an active region sandwiched by upper and lower reflectors, wherein the lower reflector is formed of a distributed Bragg reflector and a non-optical recombination elimination layer is provided between an active layer in the active region and the lower reflector.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: December 7, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Shunichi Sato, Takashi Takahashi, Naoto Jikutani, Morimasa Kaminishi, Akihiro Itoh
  • Patent number: 7787511
    Abstract: A surface-emitting laser diode device that oscillates in a direction perpendicular to the substrate is provided. This surface-emitting laser diode device includes: an active layer; a resonator structure including a first distributed Bragg reflector and a second distributed Bragg reflector that face each other and sandwich the active layer; a hole passage that extends from a first electrode to the active layer; an electron passage that extends from a second electrode to the active layer; a hole restricting structure that is located in the hole passage and defines a region for confining holes to the active layer; and an optical mode control structure that includes a non-oxide region provided in the resonator structure and an oxide region surrounding the non-oxide region, each region containing Al as a constituent element. In this surface-emitting laser diode, the area of the non-oxide region is smaller than the area of the hole restricting structure.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: August 31, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Naoto Jikutani, Shunichi Sato, Takashi Takahashi
  • Publication number: 20100195691
    Abstract: A laser diode includes a substrate having a lattice constant of GaAs or between GaAs and GaP, a first cladding layer of AlGaInP formed on the substrate, an active layer of GaInAsP formed on the first cladding layer, an etching stopper layer of GaInP formed on the active layer, a pair of current-blocking regions of AlGaInP formed on the etching stopper layer so as to define a strip region therebetween, an optical waveguide layer of AlGaInP formed on the pair of current-blocking regions so as to cover the etching stopper layer in the stripe region, and a second cladding layer of AlGaInP formed on the optical waveguide layer, wherein the current-blocking regions having an Al content substantially identical with an Al content of the second cladding layer.
    Type: Application
    Filed: January 29, 2010
    Publication date: August 5, 2010
    Inventors: Naoto Jikutani, Takashi Takahashi, Shunichi Sato
  • Patent number: 7747127
    Abstract: A plurality of optical members (lenses) for use in ultraviolet region are mutually stuck. A fluorine-based organic compound (for example, fluorine-based oil) is provided between them. The periphery of the optical members is sealed with a sealant. As the sealant, an adhesive fluorine resin, for example, a soluble fluorine resin is used.
    Type: Grant
    Filed: February 6, 2006
    Date of Patent: June 29, 2010
    Assignee: Kabushiki Kaisha Topcon
    Inventor: Takashi Takahashi
  • Publication number: 20100158064
    Abstract: A semiconductor light emitter includes a quantum well active layer which includes nitrogen and at least one other Group-V element, and barrier layers which are provided alongside the quantum well active layer, wherein the quantum well active layer and the barrier layers together constitute an active layer, wherein the barrier layers are formed of a Group-III-V mixed-crystal semiconductor that includes nitrogen and at least one other Group-V element, a nitrogen composition thereof being smaller than that of the quantum well active layer.
    Type: Application
    Filed: March 1, 2010
    Publication date: June 24, 2010
    Inventors: Takashi Takahashi, Shunichi Sato, Morimasa Kaminishi