Patents by Inventor Naoki Ota

Naoki Ota 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: 20130273407
    Abstract: A non-aqueous electrochemical cell is disclosed having a heat-resistant coating on at least one of a negative electrode, a positive electrode, and a separator, if provided. The heat-resistant coating may consume heat in the cell to stabilize the cell, act as an electrical insulator to prevent the cell from short circuiting, and increase the mechanical strength and compression resistance of the coated component. In certain embodiments, the heat-resistant coating serves as a solid state electrolyte to produce a solid state electrochemical cell.
    Type: Application
    Filed: May 17, 2013
    Publication date: October 17, 2013
    Inventors: Kostyantyn KYLYVNYK, Naoki OTA, Hiroyuki YUMOTO
  • Publication number: 20130065122
    Abstract: An electrochemical cell includes an anode, a semi-solid cathode, and a separator disposed therebetween. The semi-solid cathode includes a porous current collector and a suspension of an active material and a conductive material disposed in a non-aqueous liquid electrolyte. The porous current collector is at least partially disposed within the suspension such that the suspension substantially encapsulates the porous current collector.
    Type: Application
    Filed: September 7, 2012
    Publication date: March 14, 2013
    Applicant: 24M Technologies, Inc.
    Inventors: Yet-Ming Chiang, William Craig Carter, James C. Cross, III, Ricardo Bazzarella, Naoki Ota
  • Publication number: 20120277469
    Abstract: There are provided a method for producing N-alkyl-?-valienamine analogs represented by formula (I): (where R1 is a C1-12 alkyl group), and useful novel intermediates for the production method.
    Type: Application
    Filed: December 24, 2010
    Publication date: November 1, 2012
    Inventor: Naoki Ota
  • Publication number: 20110214930
    Abstract: Systems and methods for controlling a temperature of a plurality of batteries of a vehicle are described. The systems and methods may transfer heat from a fuel cell system to the plurality of batteries of the vehicle. The heat produced by the fuel cell system may be transferred to the plurality of batteries through at least one heat transfer system.
    Type: Application
    Filed: March 8, 2011
    Publication date: September 8, 2011
    Applicant: ENERFUEL, INC.
    Inventors: Daniel Carrington Betts, Thomas J. Pavlik, Timothy C. Scalzo, Matthew Graham, Naoki Ota
  • Patent number: 7573686
    Abstract: An MR element comprises: a tunnel barrier layer having two surfaces facing toward opposite directions; a free layer disposed adjacent to one of the surfaces of the tunnel barrier layer and having a direction of magnetization that changes in response to a signal magnetic field; and a pinned layer disposed adjacent to the other of the surfaces of the tunnel barrier layer and having a fixed direction of magnetization. The tunnel barrier layer is made of a material containing an oxide semiconductor such as ZnO. The MR element has a resistance-area product that falls within a range of 0.3 to 2.0 ?-?m2 inclusive.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: August 11, 2009
    Assignee: TDK Corporation
    Inventors: Kei Hirata, Satoshi Miura, Naoki Ota
  • Patent number: 7410512
    Abstract: A sealed electronics package comprising a tubular case wall including first and second conductive portions electrically separated by an insulative partition, a hermetic seal between the insulative partition and the first conductive portion, a hermetic seal between the insulative partition and the second conductive portion, end caps, and a hermetic seal between the end caps to the tubular case wall.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: August 12, 2008
    Assignee: Quallion LLC
    Inventors: Hisashi Tsukamoto, Clay Kishiyama, Naoki Ota
  • Patent number: 7341802
    Abstract: A feedthrough is insulated and hermetically sealed by brazing a ceramic disk to a case cover and by brazing the top surface of the ceramic disk to the bottom surface of a feedthrough pinhead. Using this technique instead of forming a compression seal, the surface area for bonding is increased, increasing bond strength. The ceramic disk electrically insulates the feedthrough pin from the cover, and provides a large surface area for mechanically sealing the cell with the braze. Considering the small size of many cells, this increased surface area is important for getting a good seal and increasing bond strength. This design also creates a longer fluid path, providing greater hermeticity. Furthermore, a greater range of component material combinations is available because CTE compatibility limitations of the feedthrough pin, cover, and insulator are minimized. This feedthrough is applicable to broad array of applications and numerous material combinations.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: March 11, 2008
    Assignee: Quallion LLC
    Inventors: Naoki Ota, Hiroshi Nakahara, David L. DeMuth, M. Elizabeth Bush
  • Publication number: 20070297099
    Abstract: An MR element comprises: a tunnel barrier layer having two surfaces facing toward opposite directions; a free layer disposed adjacent to one of the surfaces of the tunnel barrier layer and having a direction of magnetization that changes in response to a signal magnetic field; and a pinned layer disposed adjacent to the other of the surfaces of the tunnel barrier layer and having a fixed direction of magnetization. The tunnel barrier layer is made of a material containing an oxide semiconductor such as ZnO. The MR element has a resistance-area product that falls within a range of 0.3 to 2.0 ?-?m2 inclusive.
    Type: Application
    Filed: June 26, 2006
    Publication date: December 27, 2007
    Applicant: TDK CORPORATION
    Inventors: Kei Hirata, Satoshi Miura, Naoki Ota
  • Publication number: 20060156538
    Abstract: A sealed electronics package comprising a tubular case wall including first and second conductive portions electrically separated by an insulative partition, a hermetic seal between the insulative partition and the first conductive portion, a hermetic seal between the insulative partition and the second conductive portion, end caps, and a hermetic seal between the end caps to the tubular case wall.
    Type: Application
    Filed: March 15, 2006
    Publication date: July 20, 2006
    Inventors: Hisashi Tsukamoto, Clay Kishiyama, Naoki Ota
  • Patent number: 7041413
    Abstract: A sealed electronics package comprising a tubular case wall including first and second conductive portions electrically separated by an insulative partition, a hermetic seal between the insulative partition and the first conductive portion, a hermetic seal between the insulative partition and the second conductive portion, end caps; and a hermetic seal between the end caps to the tubular case wall.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: May 9, 2006
    Assignee: Quallion LLC
    Inventors: Hisashi Tsukamoto, Clay Kishiyama, Naoki Ota
  • Publication number: 20040101746
    Abstract: A feedthrough assembly and method for a battery includes a corrosion-prone pin coupled to a corrosion-resistant current collector and protected from the battery electrolyte by a protective covering. The current collector is connected to the battery electrode without danger of exposing the pin to the electrolyte.
    Type: Application
    Filed: November 27, 2002
    Publication date: May 27, 2004
    Applicant: Quallion LLC
    Inventors: Naoki Ota, David DeMuth, Hiroshi Nakahara
  • Patent number: 6716554
    Abstract: A method and apparatus for providing a hermetically sealed electrical feedthrough for use with a metal battery case. The apparatus includes a ceramic-metal feedthrough subassembly, a metal case of low melt point material, and a clad metal case cover comprising a first layer of high melt point material and a second layer of low melt point material. The first layer is hermetically sealed to the case and the second layer is hermetically sealed to a collar on the feedthrough subassembly. In another embodiment, the case body, clad cover, and feedthrough pin are made of metals that can withstand the temperatures required for hermetically sealing the ceramic cylinder directly to the cover. The cover comprises a first material suitable for installing the feedthrough subassembly and a second material matched to the case body for forming a reliable weld thereto.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: April 6, 2004
    Assignee: Quallion LLC
    Inventors: Hisashi Tsukamoto, Naoki Ota, Hiroshi Nakahara
  • Publication number: 20030027038
    Abstract: A method and apparatus for providing a hermetically sealed electrical feedthrough for use with a metal battery case. The apparatus includes a ceramic-metal feedthrough subassembly, a metal case of low melt point material, and a clad metal case cover comprising a first layer of high melt point material and a second layer of low melt point material. The first layer is hermetically sealed to the case and the second layer is hermetically sealed to a collar on the feedthrough subassembly. In another embodiment, the case body, clad cover, and feedthrough pin are made of metals that can withstand the temperatures required for hermetically sealing the ceramic cylinder directly to the cover. The cover comprises a first material suitable for installing the feedthrough subassembly and a second material matched to the case body for forming a reliable weld thereto.
    Type: Application
    Filed: September 26, 2002
    Publication date: February 6, 2003
    Applicant: Quallion LLC
    Inventors: Hisashi Tsukamoto, Naoki Ota, Hiroshi Nakahara
  • Publication number: 20030003356
    Abstract: A sealed electronics package comprising a tubular case wall including first and second conductive portions electrically separated by an insulative partition, a hermetic seal between the insulative partition and the first conductive portion, a hermetic seal between the insulative partition and the second conductive portion, wherein the first conductive portion is an anode and said second conductive portion is a cathode, end caps; and a hermetic seal between the end caps to the tubular case wall.
    Type: Application
    Filed: August 15, 2002
    Publication date: January 2, 2003
    Applicant: Quallion LLC
    Inventors: Hisashi Tsukamoto, Clay Kishiyama, Naoki Ota
  • Patent number: 6479294
    Abstract: A method and apparatus suitable for use in high volume production for determining leakage from a nominally sealed product container, e.g., a battery case. The method and apparatus first functions to analytically test for leakage of a particular component of interest, e.g., a liquid electrolyte comprising a mixture of ethylene carbonate (EC) and methyl-ethyl carbonate (MEC) in a lithium-ion battery. A second gas leakage test can then be performed.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: November 12, 2002
    Assignee: Quallion LLC
    Inventors: Wendy Fong, Naoki Ota, Hisashi Tsukamoto
  • Patent number: 5733498
    Abstract: A silicon nitride reaction-sintered body having a high mechanical strength without surface working can be produced by (1) forming a silicon powder mixture of at least two types of silicon powders having substantially independent particle size distribution ranges into a green body, the silicon powder mixture having an average particle size ranging from 5 .mu.m to 300 .mu.m; (2) heating the green body in a nitrogen-containing atmosphere for nitrogenation; and (3) sintering the nitrogenated green body at a temperature of 1900.degree. C. or higher.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: March 31, 1998
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yasunobu Kawakami, Kazumi Miyake, Hitoshi Toyoda, Naoki Ota, Kagehisa Hamazaki
  • Patent number: 4998626
    Abstract: A mail processing machine for sorting mail according to whether the characters of the destination address are printed or handwritten. The mail processing machine reads information of the surface of the mail and distinguishes the area of the destination address from the area of the sender address. The machine has a recognizer to determine printed or handwritten address according to the dispersion (i.e. the statistical variation) of a characteristic of the letters such as the height of letters, the space between letters or lines etc. In this operation, the recognizer calculates the dispersion using the signals corresponding to only the bottom two lines of the address area, which contain important information.
    Type: Grant
    Filed: July 8, 1988
    Date of Patent: March 12, 1991
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Naoki Ota
  • Patent number: 4783825
    Abstract: A postal material reading apparatus is provided with a mechanism for obtaining an image signal which represents a visual image of the surface of postal material. A detector is provided responsive to that image signal for identifying an area of that image which contains an edge mark that may interfere with orientation analysis of the image. A detector is also provided responsive to the identification of that area for analyzing the image signal for only that portion of the image signal which represents the image outside the area in which the edge mark was detected, to determine the orientation of the postal material. In the preferred embodiment, a histogram is used to identify the area of the image which contains the potentially interfering edge mark.
    Type: Grant
    Filed: April 22, 1986
    Date of Patent: November 8, 1988
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobuyuki Hirose, Naoki Ota
  • Patent number: 4736441
    Abstract: A postal materal reading apparatus is provided with a mechanism for obtaining an image signal which represents a visual image of the surface of postal material. A detector is provided responsive to that image signal for identifying an area of that image which contains an edge mark that may interfere with orientation analysis of the image. A detector is also provided responsive to the identification of that area for analyzing the image signal for only that portion of the image signal which represents the image outside the area in which the edge mark was detected, to determine the orientation of the postal material. In the preferred embodiment, a histogram is used to identify the area of the image which contains the potentially interfering edge mark.
    Type: Grant
    Filed: September 9, 1986
    Date of Patent: April 5, 1988
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobuyuki Hirose, Naoki Ota
  • Patent number: 4481665
    Abstract: This invention relates to a character segmentation method for use with an optical character reader for sequentially reading postal code, state name and city name postal information, and for generating signals which represent character masks of each character. The system then calculates the gap between each mask and determines if it is greater than an average gap value calculated for all the masks. A determination is also made if a substantially smaller mask (representing a punctuation mark) exists between the two masks. These determinations are used to identify and separate the blocks of information. Once the blocks are identified, the block containing the postal code is classified since it necessarily contains five characters and the two remaining blocks (i.e., state and city) are classified since they, having been scanned in sequence, follow the postal code.
    Type: Grant
    Filed: December 16, 1981
    Date of Patent: November 6, 1984
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventor: Naoki Ota