Patents by Inventor Yukiko Hirabayashi

Yukiko Hirabayashi 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: 20180287146
    Abstract: A lithium powder includes: a core of metallic lithium; and a coating layer coating a surface of at least a part of the core. The coating layer contains lithium carbonate including a surface in at least a part of which lithium oxide is present. The coating layer may include a first coating film layer present in at least a part of the core, and a second coating film layer present in a surface of the first coating film layer. The first coating film layer may contain lithium carbide. The second coating film layer may contain lithium carbonate.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 4, 2018
    Applicant: TDK CORPORATION
    Inventors: Hisashi SUZUKI, Yuji YAMAMOTO, Naoki KUBOTA, Yukiko HIRABAYASHI
  • Patent number: 9704699
    Abstract: In order to provide an ion source that can be easily switched with high sensitivity and in a short time, the ion source includes an ionization probe for spraying a sample, a heating chamber for heating and vaporizing a sample; and driving portions and for changing the distance between an outlet end (i.e., an end on the spray side) of the ionization probe and an inlet end (i.e., an end on the ionization probe side) of the heating chamber. The positions of the ionization probe and the heating chamber are controlled by the driving portions so that an ionization region that uses the ionization probe or an ionization region that uses the heating chamber is positioned near the ion inlet port of the mass spectrometer.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: July 11, 2017
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Hiroyuki Satake, Hideki Hasegawa, Yukiko Hirabayashi, Yuichiro Hashimoto
  • Patent number: 9620777
    Abstract: A lithium ion secondary battery with a high electrode density and an excellent rate discharge characteristic. The positive electrode includes a positive electrode active material of a compound represented by Lia(NixCoyAl1-x-y)O2 (0.95?a?1.05, 0.5?x?0.9, 0.05?y?0.2), and carbon adhered to the surface of the material, in the Raman spectrum using a laser of 532 nm, the positive electrode includes a peak PA (D band) at 1200˜1450 cm?1, a peak PB (G band) at 1450˜1700 cm?1 and a peak PC at 400˜600 cm?1, and when the intensities are normalized by regarding the maximum intensity as 1 and the minimum intensity as 0 in the wavenumber domain of 200˜1800 cm?1, Raman intensity of the minimum (V band) between the two peaks of said peak PA and said peak PB is 0.6 or less, and Raman intensity of said peak PC is 0.1 or more and 0.5 or less.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: April 11, 2017
    Assignee: TDK CORPORATION
    Inventors: Hiroyuki Miyabara, Hiroki Kitamura, Yukiko Hirabayashi, Masaki Sobu, Tetsuo Takaishi
  • Publication number: 20160196965
    Abstract: In order to provide an ion source that can be easily switched with high sensitivity and in a short time, the ion source includes an ionization probe for spraying a sample, a heating chamber for heating and vaporizing a sample; and driving portions and for changing the distance between an outlet end (i.e., an end on the spray side) of the ionization probe and an inlet end (i.e., an end on the ionization probe side) of the heating chamber. The positions of the ionization probe and the heating chamber are controlled by the driving portions so that an ionization region that uses the ionization probe or an ionization region that uses the heating chamber is positioned near the ion inlet port of the mass spectrometer.
    Type: Application
    Filed: July 9, 2014
    Publication date: July 7, 2016
    Inventors: Hiroyuki SATAKE, Hideki HASEGAWA, Yukiko HIRABAYASHI, Yuichiro HASHIMOTO
  • Publication number: 20150093633
    Abstract: A lithium ion secondary battery with a high electrode density and an excellent rate discharge characteristic. The positive electrode includes a positive electrode active material of a compound represented by Lia(NixCoyAl1?x?y)O2 (0.95:?a?1.05, 0.5?x?0.9, 0.05?y?0.2), and carbon adhered to the surface of the material, in the Raman spectrum using a laser of 532 nm, the positive electrode includes a peak PA (D band) at 1200˜1450 cm?1, a peak PB (G band) at 1450˜1700 cm?1 and a peak PC at 400˜600 cm?1, and when the intensities are normalized by regarding the maximum intensity as 1 and the minimum intensity as 0 in the wavenumber domain of 200˜1800 cm?1, Raman intensity of the minimum (V band) between the two peaks of said peak PA and said peak PB is 0.6 or less, and Raman intensity of said peak PC is 0.1 or more and 0.5 or less.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 2, 2015
    Inventors: Hiroyuki MIYABARA, Hiroki KITAMURA, Yukiko HIRABAYASHI, Masaki SOBU, Tetsuo TAKAISHI
  • Patent number: 8364227
    Abstract: A probe which allows optical fiber fixing tools to be distributed substantially uniformly and symmetrically longitudinally or laterally and is easily fitted, even when a head part size of a subject changes is provided. A plurality of optical fiber fixing tools which fix incident optical fibers and detection optical fibers are arranged on a fixing part in a substantially straight line shape, a plurality of the fixing parts are included, the fixing parts are arranged so that its straight line direction is oriented in a substantially parietal direction, the optical fiber fixing tool on the fixing part and the optical fiber fixing tool on the adjacent different fixing part are connected by a connecting member, and the connecting member is made rotatable around the optical fiber fixing tool, whereby the probe can be fitted so that the optical fibers are arranged substantially symmetrically and uniformly longitudinally or laterally.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: January 29, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Yukiko Hirabayashi, Atsushi Ninomiya, Yoshimi Kasai
  • Patent number: 8244326
    Abstract: A probe device for optically measuring a condition of an object includes a light emitter for emitting a light to proceed into the object through a surface of the object, a light sensor for measuring an optical condition of the light proceeding from the surface through the object and subsequently emitted from the surface to reach the light sensor, and a body holding thereon at least one of the light emitter and the light sensor. The body includes at least one main protrusion protruding so as to face to the surface, and at least two sub-protrusions arranged around the at least one main protrusion and protruding so as to face to the surface.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: August 14, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Atsushi Ninomiya, Yoshimi Kasai, Yukiko Hirabayashi
  • Patent number: 7974671
    Abstract: A living body information signal processing system (100) combining organically a living body optical measurement apparatus and a brain wave measurement apparatus, the living body optical measurement apparatus (300) in which inspection light of from visible to near infrared is irradiated on a head portion of a subject (140) and the penetration light is received and which measures an optical characteristic variation induced by a brain activity inside the head portion as a living body optical signal and the brain wave measurement apparatus (400) which measures an electrical characteristic variation induced by a brain activity inside the head portion of the subject as a brain wave signal, is provided with a probe device (50) used for both apparatus; and a living body information signal processing and displaying device (200) which displays the living body optical signal corresponding to respective measurement positions from the living body optical measurement apparatus and the brain wave signal corresponding to re
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: July 5, 2011
    Assignees: Hitachi Medical Corporation, Hitachi, Ltd.
    Inventors: Michiyuki Fujiwara, Tsuneaki Kawaguchi, Fumio Kawaguchi, Shingo Kawasaki, Atsushi Maki, Yukiko Hirabayashi, Yukari Yamamoto, Masashi Kiguchi, Hiroki Sato, Tsuyoshi Yamamoto, Takushige Katsura, Hideo Kawaguchi
  • Publication number: 20090209837
    Abstract: A probe which allows optical fiber fixing tools to be distributed substantially uniformly and symmetrically longitudinally or laterally and is easily fitted, even when a head part size of a subject changes is provided. A plurality of optical fiber fixing tools which fix incident optical fibers and detection optical fibers are arranged on a fixing part in a substantially straight line shape, a plurality of the fixing parts are included, the fixing parts are arranged so that its straight line direction is oriented in a substantially parietal direction, the optical fiber fixing tool on the fixing part and the optical fiber fixing tool on the adjacent different fixing part are connected by a connecting member, and the connecting member is made rotatable around the optical fiber fixing tool, whereby the probe can be fitted so that the optical fibers are arranged substantially symmetrically and uniformly longitudinally or laterally.
    Type: Application
    Filed: November 13, 2008
    Publication date: August 20, 2009
    Inventors: Yukiko HIRABAYASHI, Atsushi Ninomiya, Yoshimi Kasai
  • Publication number: 20080183055
    Abstract: A probe device for optically measuring a condition of an object includes a light emitter for emitting a light to proceed into the object through a surface of the object, a light sensor for measuring an optical condition of the light proceeding from the surface through the object and subsequently emitted from the surface to reach the light sensor, and a body holding thereon at least one of the light emitter and the light sensor. The body includes at least one main protrusion protruding so as to face to the surface, and at least two sub-protrusions arranged around the at least one main protrusion and protruding so as to face to the surface.
    Type: Application
    Filed: November 15, 2007
    Publication date: July 31, 2008
    Inventors: Atsushi Ninomiya, Yoshimi Kasai, Yukiko Hirabayashi
  • Patent number: 7231241
    Abstract: Disclosed is a probe for biomeasurement by use of light capable of adjusting positions of incident points and detection points without changing the distance between the incident point and the detection point in accordance with the size of a subject's head, and an optical bioinstrumentation for living body using the probe. The distances between the incident points and the detection points are approximately the same. A gap is formed by removing part of connecting members, rotatable about the incident point and the detection point, around the subject head top portion. The size of the probe is changed by changing the distance between the incident points or the detection points around the gap.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: June 12, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Yukiko Hirabayashi, Kenko Uchida
  • Publication number: 20060122477
    Abstract: Disclosed is a probe for biomeasurement by use of light capable of adjusting positions of incident points and detection points without changing the distance between the incident point and the detection point in accordance with the size of a subject's head, and an optical bioinstrumentation for living body using the probe. The distances between the incident points and the detection points are approximately the same. A gap is formed by removing part of connecting members, rotatable about the incident point and the detection point, around the subject head top portion. The size of the probe is changed by changing the distance between the incident points or the detection points around the gap.
    Type: Application
    Filed: March 3, 2005
    Publication date: June 8, 2006
    Inventors: Yukiko Hirabayashi, Kenko Uchida
  • Patent number: 6904302
    Abstract: Irradiated points and light receiving points are arranged such that sampling points are arranged over an entire spherical head with no vacant space. The sampling points are arranged to cover the entire spherical head by combining a plurality of rhombic shells and inverting the respective positions of irradiated points and light receiving points in the adjacent shells. As a result, a whole brain probe capable of covering the entire head is provided to allow an image of the whole brain to be viewed as a single image.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: June 7, 2005
    Assignees: Hitachi, Ltd., Hitachi Medical Corporation
    Inventors: Yukiko Hirabayashi, Tsuyoshi Yamamoto
  • Publication number: 20040191747
    Abstract: The training of a trainee is performed in response to an instruction from a training task presentation (110) and the trainee responds by using a trainee's response collection unit (111). At the same time, a brain activity measurement unit (101) and a signal converter (103) using a cable (102) for transmitting signals of brain activity measure the brain activity of the trainee. Through a comparison between a response from the trainee and the result of brain activity measurement, a training effect is evaluated and a next training task to be performed is determined. For optimum training, the training is evaluated based on both of a training effect which can be evaluated from the outer appearance and brain activity corresponding thereto.
    Type: Application
    Filed: February 5, 2004
    Publication date: September 30, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Hirokazu Atsumori, Tsuyoshi Yamamoto, Yukiko Hirabayashi, Naoki Tanaka, Masashi Kiguchi, Hiroki Sato, Hideo Kawaguchi, Takusige Katura, Yukari Yamamoto
  • Patent number: 6787017
    Abstract: The capillary electrophoresis system includes a wafer-shaped part having passages filled with a buffer solution for introducing sample solutions; a body having a configuration suitable to removably hold and to move the wafer-shaped part. The body includes first and second electrodes for applying a voltage across both ends of passages of the wafer-shaped part to separate and remove the sample solution. The body also includes first and second buffer reservoirs conductive to passages of the wafer-shaped part at specific positions for filling buffer solution around the first and second electrodes. The system according to the present invention facilitates washing of electrophoresis passages and reduces the time and labor costs required for replacement of the fused-silica wafers and simplifies operation by allowing a plurality of sample solutions to be analyzed more quickly.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: September 7, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Atsumu Hirabayashi, Yukiko Hirabayashi, Akihiko Okumura, Hideaki Koizumi
  • Patent number: 6774359
    Abstract: In a sample-introduction tool in which an end of a passage is connected to a reservoir for storing a mobile phase solution, a sample-dropping orifice is provided at the passage and the mobile phase solution and a sample running off from the other end of the passage are introduced into a mass spectrometer by generating a high-speed gas stream around the other end of the passage. The mobile phase solution and the sample are nebulized by the high-speed gas stream, and the injected sample is ionized.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: August 10, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Yukiko Hirabayashi, Atsumu Hirabayashi, Akihiko Okumura, Hideaki Koizumi
  • Publication number: 20040077935
    Abstract: Irradiated points and light receiving points are arranged such that sampling points are arranged over an entire spherical head with no vacant space. The sampling points are arranged to cover the entire spherical head by combining a plurality of rhombic shells and inverting the respective positions of irradiated points and light receiving points in the adjacent shells. As a result, a whole brain probe capable of covering the entire head is provided to allow an image of the whole brain to be viewed as a single image.
    Type: Application
    Filed: August 13, 2003
    Publication date: April 22, 2004
    Applicants: Hitachi, Ltd., Hitachi Medical Corporation
    Inventors: Yukiko Hirabayashi, Tsuyoshi Yamamoto
  • Patent number: 6673547
    Abstract: A genome DNA analysis method and a genome DNA analysis system of the present invention generates multiply-charged ions with 5 or more electric charges by an ionization process using air atomization. Also, a mass spectrometric spectrum thereof is detected and compared with predicted mass spectrum patterns in the presence or absence of polymorphism to determine a base at a polymorphic point.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: January 6, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Atsumu Hirabayashi, Min Huang, Yukiko Hirabayashi, Akihiko Okumura
  • Patent number: 6478738
    Abstract: A living body fluid mass-analyzing method introducing a first solution whose osmotic pressure is close to that of a living body fluid into a microdialysis, extracting the living body fluid from the microdialysis, mixing the living body fluid from the microdialysis and an organic solution, and applying a gas around a capillary through which the mixed living fluid flows thereby spraying and ionizing the living body fluid by the gas. Further, the ionized ions are introduced into three dimensional mass-analyzer through an orifice, accumulating the ions in said three dimensional mass-analyzer and sending out the accumulated ions in order of mass to measure mass numbers of the ions.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: November 12, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Yukiko Hirabayashi, Atsumu Hirabayashi, Hideaki Koizumi
  • Patent number: 6465779
    Abstract: A mass spectrometer comprising an ionization means for ionizing sample compounds to be analyzed mass spectroscopically in an atmospheric pressure, a sample solution supply means for supplying a solution containing the sample compounds to the ionization means, means for feeding the ions formed by the ionization means through an aperture disposed in an electrode into a vacuum region, and an ion trap type mass spectroscopic means for mass spectroscopically analyzing ions entered through the aperture into the vacuum region, in which an ion decelerating electric field forming means is disposed between the electrode disposed with the aperture and an electrode disposed with an ion entrance opening for entering the ions into the ion trap type mass spectroscopic means for forming an electric field for decelerating the ions, and the ions injected to the ion trap mass spectroscopic means is lowered.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: October 15, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Yasuaki Takada, Minoru Sakairi, Takayuki Nabeshima, Yukiko Hirabayashi, Hideaki Koizumi