Patents by Inventor Shinya Kubo

Shinya Kubo 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: 11916204
    Abstract: (A) An electrolyte solution containing lithium bis(oxalato)borate and vinylene carbonate is injected into a lithium-ion battery. (B) Initial charging is performed. (C) Aging is performed. During the aging, lithium bis(oxalato)borate and vinylene carbonate contained in the electrolyte solution are degraded. After the aging, in the electrolyte solution, a mass fraction of lithium bis(oxalato)borate is less than 0.10% and a mass fraction of vinylene carbonate is less than 0.10%.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: February 27, 2024
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventors: Makoto Kubo, Kazunori Donoue, Shinya Miyazaki
  • Patent number: 7794826
    Abstract: A carbon-fiber-reinforced SiC composite having a high tensile strength is produced by impregnating a carbon-fiber-reinforced carbon composite with melted metal Si. The carbon-fiber-reinforced carbon composite includes carbon fibers that are pitch-based short carbon fibers. The pitch-based short carbon fibers are oriented in two-dimensional random directions. The carbon-fiber-reinforced carbon composite has a bulk density of 1.2 to 1.7 g/cm3, a porosity of 15 to 40 vol %, and a carbon fiber volume content of 20 to 50 vol %.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: September 14, 2010
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Toshihiro Fukagawa, Shinya Kubo
  • Publication number: 20090029163
    Abstract: A carbon-fiber-reinforced SiC composite having a high tensile strength is produced by impregnating a carbon-fiber-reinforced carbon composite with melted metal Si. The carbon-fiber-reinforced carbon composite includes carbon fibers that are pitch-based short carbon fibers. The pitch-based short carbon fibers are oriented in two-dimensional random directions. The carbon-fiber-reinforced carbon composite has a bulk density of 1.2 to 1.7 g/cm3, a porosity of 15 to 40 vol %, and a carbon fiber volume content of 20 to vol %.
    Type: Application
    Filed: June 28, 2006
    Publication date: January 29, 2009
    Applicant: Mitsubishi Chemical Functional Products, Inc.
    Inventors: Toshihiro Fukagawa, Shinya Kubo
  • Patent number: 7342687
    Abstract: A scanner has an imaging device which is constituted by a cold-cathode tube, includes a light source for irradiating light to a reflection surface of a reference white plate and a plurality of pixels arranged in one line, and detects light reflected on the reflection surface by the respective pixels, and has a light source stability determination unit which determines whether or not light amounts obtained by the one line of pixels from the light source are approximately uniform. Only in a case where the light source stability determination unit determines that the light amounts obtained by the one line of pixels from the light source are approximately uniform, the scanner reads the reference white plate to calculate correction values for the respective pixels and reads a manuscript.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: March 11, 2008
    Assignee: NEC Corporation
    Inventor: Shinya Kubo
  • Patent number: 7262064
    Abstract: In a magnetoresistive effect element using a ferromagnetic tunnel junction having a tunnel barrier layer sandwiched between at least a pair of ferromagnetic layers, a magnetization free layer comprising one of the ferromagnetic layers is composed of a single layer of a material having an amorphous or microcrystal structure or a material layer the main portion of which has an amorphous or microcrystal structure. The magnetoresistive effect element can produce excellent magnetic-resistance characteristics, and a magnetic memory element and a magnetic memory device using the magnetoresistive effect element as a memory element thereof can improve both of write and read characteristics at the same time.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: August 28, 2007
    Assignee: Sony Corporation
    Inventors: Kazuhiro Ohba, Kazuhiko Hayashi, Hiroshi Kano, Kazuhiro Bessho, Tetsuya Mizuguchi, Yutaka Higo, Masanori Hosomi, Tetsuya Yamamoto, Hiroaki Narisawa, Takeyuki Sone, Keitaro Endo, Shinya Kubo
  • Patent number: 6980335
    Abstract: The color image processing apparatus of the present invention selects, on the basis of a moving average number n of pixels calculated by a predetermined numerical formula with respect to any notable pixel i, n number of reference pixels j located before and after the notable pixel i, and calculates an absolute value of a difference between an output of respective of the selected reference pixels j and that of the notable pixel i. Then, a moving average processing is executed by using only some reference pixels j of which the absolute value of the difference between each of their output levels and the output level of the notable pixel i is smaller than a threshold value.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: December 27, 2005
    Assignee: NEC Corporation
    Inventor: Shinya Kubo
  • Publication number: 20040257719
    Abstract: In a magnetoresistive effect element using a ferromagnetic tunnel junction having a tunnel barrier layer sandwiched between at least a pair of ferromagnetic layers, a magnetization free layer comprising one of the ferromagnetic layers is composed of a single layer of a material having an amorphous or microcrystal structure or a material layer the main portion of which has an amorphous or microcrystal structure. The magnetoresistive effect element can produce excellent magnetic-resistance characteristics, and a magnetic memory element and a magnetic memory device using the magnetoresistive effect element as a memory element thereof can improve both of write and read characteristics at the same time.
    Type: Application
    Filed: April 9, 2004
    Publication date: December 23, 2004
    Inventors: Kazuhiro Ohba, Kazuhiko Hayashi, Hiroshi Kano, Kazuhiro Bessho, Tetsuya Mizuguchi, Yutaka Higo, Masanori Hosomi, Tetsuya Yamamoto, Hiroaki Narisawa, Takeyuki Sone, Keitaro Endo, Shinya Kubo
  • Patent number: 6713744
    Abstract: The scanner includes the switch 10 that is closed when a document is read, the boosted-voltage conversion circuit 12 that boosts a DC voltage of 12 volts (V) supplied from a power source (not shown) and then converts it into a high-frequency signal b of 50 KHz, the temperature detection circuit 20 formed of the thermistor 15 for ambient temperature detection and correction circuit 16, and the dimmer control circuit 13 that varies the high-frequency signal b from the boosted-voltage conversion circuit 12 according to a temperature detected by the thermistor 15 and produces a drive signal c to vary the luminance of the cold-cathode-tube light source 2.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: March 30, 2004
    Assignee: NEC Corporation
    Inventors: Shinya Kubo, Tetsuichiro Yamamoto
  • Patent number: 6671814
    Abstract: A USB device comprises a USB connector 1 for connecting it to a USB or HUB of a host and a serial interface engine (SIE) 2 serving as an interface. The USB connector 1 and the SIE 2 are interconnected by four signal lines defined in a USB. Of these signal lines, a 5-V power supply line for supplying 5-V power to the SIE 2 is provided with a switch 3 for electrically on-off switching it. The user can readily control the power supply from the host to the USB switch by operating the switch. Thus, when the USB device is not used, the power supply from the host can be stopped to reduce power consumption of the host.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: December 30, 2003
    Assignee: NEC Corporation
    Inventors: Shinya Kubo, Kazuyuki Sumida
  • Publication number: 20030193700
    Abstract: A scanner has an imaging device which is constituted by a cold-cathode tube, includes a light source for irradiating light to a reflection surface of a reference white plate and a plurality of pixels arranged in one line, and detects light reflected on the reflection surface by the respective pixels, and has a light source stability determination unit which determines whether or not light amounts obtained by the one line of pixels from the light source are approximately uniform. Only in a case where the light source stability determination unit determines that the light amounts obtained by the one line of pixels from the light source are approximately uniform, the scanner reads the reference white plate to calculate correction values for the respective pixels and reads a manuscript.
    Type: Application
    Filed: April 11, 2003
    Publication date: October 16, 2003
    Applicant: NEC CORPORATION
    Inventor: Shinya Kubo
  • Patent number: 6572917
    Abstract: A manufacturing method of a magnetic memory device, wherein the inventive method does not require any special technique for forming pattern, but bilaterally ensures precision for processing a tunnel magneto-resistive effect element (called TMR element) and self-matching formation of connecting elements. The manufacturing method of a magnetic memory device comprises a processing step of forming a tunnel magneto-resistive effect film sandwiching a tunnel barrier layer between a magnetic pinned layer and a memory layer into a predetermined elementary configuration by applying a mask layer, wherein the mask layer is formed by applying a plating process.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: June 3, 2003
    Assignee: Sony Corporation
    Inventors: Hiroaki Narisawa, Keitaro Endo, Shinya Kubo
  • Publication number: 20030026894
    Abstract: A manufacturing method of a magnetic memory device, wherein the inventive method does not require any special technique for forming pattern, but bilaterally ensures precision for processing a tunnel magneto-resistive effect element (called TMR element) and self-matching formation of connecting elements. The manufacturing method of a magnetic memory device comprises a processing step of forming a tunnel magneto-resistive effect film sandwiching a tunnel barrier layer between a magnetic pinned layer and a memory layer into a predetermined elementary configuration by applying a mask layer, wherein the mask layer is formed by applying a plating process.
    Type: Application
    Filed: July 3, 2002
    Publication date: February 6, 2003
    Inventors: Hiroaki Narisawa, Keitaro Endo, Shinya Kubo
  • Patent number: 6396648
    Abstract: An image reader including a light source irradiating light to a reading object, a reading device reading an image on the reading object based on the radiated light; and a lens focusing the image onto the reading device and having a characteristic by which a distortion rate is increased from the central part to the end part. The distortion rate of the end part is set to a value in which there is no need to complement the read image.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: May 28, 2002
    Assignee: NEC Corporation
    Inventors: Tetsuichiro Yamamoto, Shinya Kubo
  • Publication number: 20020054395
    Abstract: The color image processing apparatus of the present invention selects, on the basis of a moving average number n of pixels calculated by a predetermined numerical formula with respect to any notable pixel i, n number of reference pixels j located before and after the notable pixel i, and calculates an absolute value of a difference between an output of respective of the selected reference pixels j and that of the notable pixel i. Then, a moving average processing is executed by using only some reference pixels j of which the absolute value of the difference between each of their output levels and the output level of the notable pixel i is smaller than a threshold value.
    Type: Application
    Filed: August 8, 2001
    Publication date: May 9, 2002
    Inventor: Shinya Kubo
  • Patent number: 6279053
    Abstract: The present invention provides a video data reading method comprising steps of: inputting a video data from a video input device; inputting a key-in data from a key switch; adding said key-in data to a packet of said video data; and transmitting said video data and said key-in data in the same packet via a USB interface to a host computer.
    Type: Grant
    Filed: October 29, 1998
    Date of Patent: August 21, 2001
    Assignee: NEC Corporation
    Inventor: Shinya Kubo
  • Patent number: 5963343
    Abstract: When the scanner moves over the subject copy, the first reading elements of a close contact type image sensor (1) read the copy. As the movement causes a platen roller (5) to rotate, an encoder ring (4), having a prescribed distinguishing pattern (10) printed within, rotates. Second reading elements configured outside the copy reading range of the close contact type image sensor (1) read the distinguishing pattern, which moves over the reading face as the encoder ring (4) rotates. The second reading elements which read the distinguishing pattern are driven independently of the first reading elements for reading the subject copy, and their reading period is shorter than that of the first reading elements. This configuration enables the moving speed to be accurately detected even when the scanner moves faster than the copy reading speed.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: October 5, 1999
    Assignee: NEC Corporation
    Inventors: Shinya Kubo, Tetsuichiro Yamamoto
  • Patent number: 5852686
    Abstract: An image reading device, particularly a hand scanner, capable of setting a reading position in the main scanning direction accurately at all times. A stage glass is affixed to the reading surface of the hand scanner. A reference line is printed on the stage glass outside of the valid reading range of a CCD (Charge Coupled Device) image scanner. For the adjustment of the valid reading range, the image sensor and a lens are roughly adjusted such that data representative of the reference line appears at the edge of the valid reading range. Subsequently, the valid reading range is electrically shifted in the main scanning direction such that the reference line disappears.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: December 22, 1998
    Assignee: NEC Corporation
    Inventors: Shinya Kubo, Tetsuichiro Yamamoto, Yasushi Matsumoto