Patents by Inventor Yoko Yamamoto

Yoko Yamamoto 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: 20240150649
    Abstract: A light-emitting element includes an anode electrode, a QD layer containing QDs, and a cathode electrode, in which the QDs are Cd-free quantum dots having a core-shell structure including a core containing at least Ag, Ga, and at least one of S and Se, and a shell containing at least Zn, and exhibit fluorescence characteristics with a fluorescence full-width at half-maximum of 40 nm or less and a fluorescence quantum yield percentage of 70% or more.
    Type: Application
    Filed: March 31, 2021
    Publication date: May 9, 2024
    Inventors: Kazuki GOTO, Yusuke SAKAKIBARA, Masaki YAMAMOTO, Tatsuya RYOHWA, Akio MISHIMA, Soichiro NIKATA, Vit KALOUSEK, Yuko OGURA, Yoko MICHIWAKI
  • Publication number: 20240107792
    Abstract: A light-emitting element includes an anode electrode, a cathode electrode, and a QD layer provided between the anode electrode and the cathode electrode, the QD layer containing the QDs. The QDs are AgInxGa1-xSySe1-y-based or ZnAgInxGa1-xSySe1-y-based Cd-free QDs (0?x<1, 0?y?1) and exhibit fluorescence characteristics having a fluorescent half width of 45 nm or less and a fluorescence quantum yield of 35% or more in a green wavelength region to a red wavelength region.
    Type: Application
    Filed: February 18, 2021
    Publication date: March 28, 2024
    Inventors: Kazuki GOTO, YUSUKE SAKAKIBARA, Yuma YAGUCHI, Keisuke KITANO, Masaki YAMAMOTO, Soichiro NIKATA, Yoko MICHIWAKI, Yuko OGURA, Vit KALOUSEK, Akio MISHIMA
  • Publication number: 20230091217
    Abstract: A semiconductor device of embodiments includes: a die pad including a first region and a second region surrounding the first region and thinner than the first region; a semiconductor chip including an upper electrode, a lower electrode, and a silicon carbide layer between the upper electrode and the lower electrode and provided on an inner side rather than the second region on a surface of the die pad; and a connection layer for connecting the lower electrode to the surface.
    Type: Application
    Filed: February 17, 2022
    Publication date: March 23, 2023
    Inventor: Yoko YAMAMOTO
  • Patent number: 11489174
    Abstract: A fuel battery cell includes: a first separator, a first gas diffusion layer, a first catalyst layer, a polymer electrolyte membrane, a second catalyst layer, a second gas diffusion layer, and a second separator that are sequentially laminated along a laminating direction; a first gas flow path part that is provided between the first separator and the first gas diffusion layer; and a second gas flow path part that is provided between the first separator and the first gas diffusion layer and adjacent to the first gas flow path part in a direction intersecting the laminating direction, and has a flow path area larger than that of the first gas flow path part in a plan view seen along the laminating direction. The first gas diffusion layer includes a first low-elasticity part facing the first gas flow path part, and a first high-elasticity part facing the second gas flow path part and having a higher compressive modulus of elasticity than that of the first low-elasticity part in the laminating direction.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: November 1, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoko Yamamoto, Tsutomu Kawashima
  • Publication number: 20210391583
    Abstract: A gas diffusion layer includes: a conductive particle; and a fluororesin, and the fluororesin includes a first fiber having a first average fiber diameter and a second fiber having a second average fiber diameter different from the first average fiber diameter.
    Type: Application
    Filed: June 10, 2021
    Publication date: December 16, 2021
    Inventors: Tsutomu KAWASHIMA, Yoko YAMAMOTO, Miyuki YOSHIMOTO, Koji OGAWA
  • Publication number: 20210359313
    Abstract: A fuel battery cell includes: a first separator, a first gas diffusion layer, a first catalyst layer, a polymer electrolyte membrane, a second catalyst layer, a second gas diffusion layer, and a second separator that are sequentially laminated along a laminating direction; a first gas flow path part that is provided between the first separator and the first gas diffusion layer; and a second gas flow path part that is provided between the first separator and the first gas diffusion layer and adjacent to the first gas flow path part in a direction intersecting the laminating direction, and has a flow path area larger than that of the first gas flow path part in a plan view seen along the laminating direction. The first gas diffusion layer includes a first low-elasticity part facing the first gas flow path part, and a first high-elasticity part facing the second gas flow path part and having a higher compressive modulus of elasticity than that of the first low-elasticity part in the laminating direction.
    Type: Application
    Filed: April 20, 2021
    Publication date: November 18, 2021
    Inventors: YOKO YAMAMOTO, TSUTOMU KAWASHIMA
  • Patent number: 9793555
    Abstract: In order to provide a membrane electrode assembly that can further improve power generation performances of a fuel cell, the present invention allows a rib portion (22) that separates mutually adjacent gas flow passages (21) from each other to have a porosity lower than the porosity of a lower area (23) of the rib portion. Thus, it is possible to suppress the deformation of the rib portion and excessive permeation of a reaction gas, and consequently to further improve the power generation performances.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: October 17, 2017
    Assignee: PANASONIC CORPORATION
    Inventors: Masaki Yamauchi, Yoichiro Tsuji, Naotsugu Koashi, Hideo Kasahara, Takashi Nakagawa, Yoko Yamamoto
  • Patent number: 9490497
    Abstract: Provided is a solid polymer electrolyte type fuel cell having high durability. The fuel cell comprises a stack of single cell modules, each including an electrolyte membrane-electrode-frame assembly and a pair of separators. The electrolyte membrane-electrode-frame assembly includes a catalyst layer-attached electrolyte membrane having a polymer electrolyte membrane, an anode catalyst, and a cathode catalyst, a frame that is disposed at a peripheral portion of the catalyst layer-attached electrolyte membrane and has a rectangular inner periphery, and a pair of gas diffusion layers that are disposed on both surfaces of the catalyst layer-attached electrolyte membrane. The gas diffusion layers were disposed to cover an inner peripheral portion of the frame, respectively. A thickness of at least a part of a corner portion of the inner peripheral portion is smaller than a thickness of a linear side portion of the inner peripheral portion of the frame.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: November 8, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoko Yamamoto, Mitsuo Yoshimura
  • Publication number: 20150288020
    Abstract: A fuel-cell stack includes a cell stack having first and second flow channels, all of which extend in a direction of stack of single cells so as to open on an end surface in the direction of stack, and also includes a manifold piping structure connected to openings of the first and second flow channels. The manifold piping structure includes first and second connecting pipes respectively connected to the openings of the first and second flow channels, and a plate-like member disposed on an end surface of the cell stack to connect the first and second connecting pipes. A groove or an opening is formed in a first or second surface of the plate-like member at a location between a seal contact surface around one of the first connecting pipe and a seal contact surface around the second connecting pipe.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 8, 2015
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoko Yamamoto, Mitsuo Yoshimura, Yoshifumi Taguchi
  • Patent number: 9005840
    Abstract: A fuel cell separator pair has first and second separators having front and back surfaces, a corrugated plate portion shaped in a wave form at the central portion, and a flat plate portion formed in the peripheral portion and surrounding the corrugated plate portion, wherein the corrugated plate portion of the front surface constitutes a reaction gas channel and the corrugated plate portion of the back surface constitutes a coolant channel. The back surfaces of the first and second separators are facing each other. The flat plate portions of the first and second separators are arranged on top of each other so as to be in contact with each other. The flat plate portion of the second separator protrudes toward the outside beyond the flat plate portion of the first separator.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: April 14, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takashi Morimoto, Toshihiro Matsumoto, Atusi Murata, Mitsuo Yoshimura, Yoko Yamamoto
  • Patent number: 8962212
    Abstract: A polymer electrolyte fuel cell-use gasket, included in a polymer electrolyte fuel cell including a fuel cell stack is provided. In the fuel cell stack, a plurality of unit cell modules is stacked, and each of the unit cell modules includes sealing members disposed at circumference portions of respective front and back surfaces of a membrane electrode assembly, and paired separators sandwiching the membrane electrode assembly and the sealing members. The sealing members are integrally molded with the circumference portions of the respective front and back surfaces of the membrane electrode assembly. In each sealing member of the gasket, two rows of sealing lips are continuously provided in parallel to each other in an in-plane manner, and at least an outer one of the two rows of sealing lips is integrally formed, having a top side bell-shaped portion overlaid on a bottom side bell-shaped portion.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: February 24, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoko Yamamoto, Toshihiro Matsumoto, Takashi Morimoto, Mitsuo Yoshimura
  • Publication number: 20140377679
    Abstract: Provided is a solid polymer electrolyte type fuel cell having high durability. The fuel cell comprises a stack of single cell modules, each including an electrolyte membrane-electrode-frame assembly and a pair of separators. The electrolyte membrane-electrode-frame assembly includes a catalyst layer-attached electrolyte membrane having a polymer electrolyte membrane, an anode catalyst, and a cathode catalyst, a frame that is disposed at a peripheral portion of the catalyst layer-attached electrolyte membrane and has a rectangular inner periphery, and a pair of gas diffusion layers that are disposed on both surfaces of the catalyst layer-attached electrolyte membrane. The gas diffusion layers were disposed to cover an inner peripheral portion of the frame, respectively. A thickness of at least a part of a corner portion of the inner peripheral portion is smaller than a thickness of a linear side portion of the inner peripheral portion of the frame.
    Type: Application
    Filed: April 9, 2013
    Publication date: December 25, 2014
    Applicant: Panasonic Corporation
    Inventors: Yoko Yamamoto, Mitsuo Yoshimura
  • Patent number: 8871405
    Abstract: When assembly is carried out by clamping a stacked product made up of a plurality of unit cell modules, paired end plates respectively disposed on both the sides thereof and the like by a plurality of fastening members, first coupling portions of one end portion of each of such plurality of fastening members and second coupling portions of the other end portions are combined to each other, and coupled with one pin member. Thus, a plurality of such fastening members are coupled.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: October 28, 2014
    Assignee: Panasonic Corporation
    Inventor: Yoko Yamamoto
  • Patent number: 8649580
    Abstract: An image processing method includes obtaining a first spectral characteristic value in a sample point on a stained sample based on a value of a pixel of a stained-sample image obtained by imaging the stained sample, the sample point corresponding to the pixel, the stained sample being stained with a predetermined staining dye and to be observed; and obtaining gradual second spectral characteristic values on the staining dye. The method also includes estimating an amount of the staining dye in the sample point on the staining sample by using the second dye spectral characteristic values on the staining dye based on the first spectral characteristic value.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: February 11, 2014
    Assignee: Olympus Corporation
    Inventor: Yoko Yamamoto
  • Patent number: 8497104
    Abstract: An organic acid is produced by allowing a bacterium belonging to the family Enterobacteriaceae, which has an ability to produce an organic acid and has been modified so that the phosphoenolpyruvate carboxykinase activity is enhanced, and the glucose phosphotransferase activity is decreased, which is selected from Escherichia, Enterobacter, Pantoea, Erwinia, Klebsiella and Raoultella bacteria, or a product obtained by processing the bacterium, to act on an organic raw material in a reaction mixture containing carbonate ions, bicarbonate ions, or carbon dioxide gas to produce the organic acid.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: July 30, 2013
    Assignee: Ajinomoto Co., Inc.
    Inventors: Yoshinori Tajima, Yoko Yamamoto
  • Publication number: 20120327211
    Abstract: A diagnostic information distribution device is configured to be communicable with multiple pathology diagnosis devices and to distribute diagnostic information to the pathology diagnosis devices, and includes: an image acquiring unit that acquires a specimen image by imaging a diagnosis target specimen; a diagnostic area extracting unit that extracts a diagnostic area from the specimen image; a providing information creating unit that modifies the image data of at least the diagnostic area into an image of an image type corresponding to an observation procedure correlated with a request pathologist who is requested to make a diagnosis so as to create providing information; and a providing information distributing unit that distributes diagnostic information including the providing information to the pathology diagnosis device of the request pathologist.
    Type: Application
    Filed: August 31, 2012
    Publication date: December 27, 2012
    Applicant: OLYMPUS CORPORATION
    Inventor: Yoko YAMAMOTO
  • Publication number: 20120251918
    Abstract: A fuel cell separator pair has first and second separators having front and back surfaces, a corrugated plate portion shaped in a wave form at the central portion, and a flat plate portion formed in the peripheral portion and surrounding the corrugated plate portion, wherein the corrugated plate portion of the front surface constitutes a reaction gas channel and the corrugated plate portion of the back surface constitutes a coolant channel. The back surfaces of the first and second separators are facing each other. The flat plate portions of the first and second separators are arranged on top of each other so as to be in contact with each other. The flat plate portion of the second separator protrudes toward the outside beyond the flat plate portion of the first separator.
    Type: Application
    Filed: July 14, 2010
    Publication date: October 4, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Takashi Morimoto, Toshihiro Matsumoto, Atusi Murata, Mitsuo Yoshimura, Yoko Yamamoto
  • Publication number: 20120129233
    Abstract: An organic acid is produced by allowing a bacterium belonging to the family Enterobacteriaceae, which has an ability to produce an organic acid and has been modified so that the phosphoenolpyruvate carboxykinase activity is enhanced, and the glucose phosphotransferase activity is decreased, which is selected from Escherichia, Enterobacter, Pantoea, Erwinia, Klebsiella and Raoultella bacteria, or a product obtained by processing the bacterium, to act on an organic raw material in a reaction mixture containing carbonate ions, bicarbonate ions, or carbon dioxide gas to produce the organic acid.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 24, 2012
    Inventors: Yoshinori Tajima, Yoko Yamamoto
  • Patent number: 8129990
    Abstract: An image processing apparatus includes a recognition unit that recognizes each cell area corresponding to a living cell from a series of observation images captured at observation time points; a measurement unit that measures cell characteristic amounts of each cell; a tracking unit that determines whether a cell area captured at a processing target time point and a cell area captured earlier than the processing target time point has an identity with each other, and associates the cell areas which have an identity with each other; and a cell division detection processing unit that measures relative position information between a target cell area to be processed and a peripheral cell area positioned around the target cell area, determines whether cell division has occurred in a living cell based on at least the relative position information, and detects a target cell area on which cell division has occurred.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: March 6, 2012
    Assignee: Olympus Corporation
    Inventor: Yoko Yamamoto
  • Publication number: 20120021329
    Abstract: In order to provide a membrane electrode assembly that can further improve power generation performances of a fuel cell, the present invention allows a rib portion (22) that separates mutually adjacent gas flow passages (21) from each other to have a porosity lower than the porosity of a lower area (23) of the rib portion. Thus, it is possible to suppress the deformation of the rib portion and excessive permeation of a reaction gas, and consequently to further improve the power generation performances.
    Type: Application
    Filed: August 31, 2010
    Publication date: January 26, 2012
    Inventors: Masaki Yamauchi, Yoichiro Tsuji, Naotsugu Koashi, Hideo Kasahara, Takashi Nakagawa, Yoko Yamamoto