Patents by Inventor Tomohiro Yamamoto

Tomohiro 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).

  • Patent number: 7550290
    Abstract: In order to realize a sensor that is capable of promptly and accurately supplying a small amount of a liquid sample to a filtration part even if the sensor is not held substantially horizontally, this invention provides a sensor having means for supplying a liquid sample to the filtration part by capillary action.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: June 23, 2009
    Assignee: Panasonic Corporation
    Inventor: Tomohiro Yamamoto
  • Publication number: 20090129510
    Abstract: A frequency shift keying digital signal receiving apparatus includes a detecting portion detecting a new signal on the basis of a signal, from which a correlated ambient noise is filtered out by an adaptive filter, a holding portion holding a first electric power for the signal received before a new signal is detected, a calculating portion calculating a second electric power for the signal received after the new signal is detected, a comparing portion comparing levels of the first and second electric powers, a selector selecting the signal, from which the correlated ambient noise is filtered out, when the first electric power is higher than the second electric power and selecting the signal bypassing the adaptive filter when the first electric power is lower than the second electric power, and a demodulating portion demodulating a desired signal on the basis of the signal selected by the selecting portion.
    Type: Application
    Filed: November 13, 2008
    Publication date: May 21, 2009
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Tomohiro Yamamoto, Akira Furuhashi, Takahiro Horie, Yuichi Murakami, Kazunori Ono, Frederic Coutant, Tarik Aouine
  • Publication number: 20090129520
    Abstract: A digital signal receiving apparatus includes: detection-judging portion judging a possible presence of a desired signal when a signal level of a smoothed signal is greater than a reference level; wherein said first smoothed signal and said second smoothed signal are compared in order to generate a detection signal representing a judgment of a possible presence of a desired signal, said second smoothed signal having a convergence speed slower than that of the first smoothing filter, a filter controlling portion switching an adaptive filter from an adaptive mode to a non-adaptive mode when the detection-judging portion judges the possible presence of the desired signal and switching from the non-adaptive mode to the adaptive mode when the detection-judging portion judges the absence of the desired signal; a limiting portion limiting a signal level of an auto-correlation signal to the signal level of the smoothed signal; and a demodulating portion demodulating the auto-correlation signal having the signal level
    Type: Application
    Filed: November 13, 2008
    Publication date: May 21, 2009
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Tomohiro YAMAMOTO, Akira Furuhashi, Takahiro Horie, Yuichi Murakami, Kazunori Ono, Frederic Coutant, Tarik Aouine
  • Publication number: 20090129523
    Abstract: A digital signal receiving apparatus includes a detection-judging portion having a first smoothing filter generating a first smoothed signal by smoothing an auto-correlation signal and judging a possible presence of a desired signal when a signal level of the first smoothed signal is greater than a reference level and an absence of the desired signal when being smaller than the reference level. The smoothing filter includes a limiting portion limiting a fluctuation width of the first smoothed signal; and an adjusting portion configured to adjust the fluctuation width of the first smoothed signal limited by the limiting portion to be reduced while an elapsing time after the detection-judging means judges the possible presence of the desired signal is increasing.
    Type: Application
    Filed: November 13, 2008
    Publication date: May 21, 2009
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Tomohiro Yamamoto, Akira Furuhashi, Takahiro Horie, Yuichi Murakami, Kazunori Ono, Frederic Coutant, Tarik Aouine
  • Publication number: 20090087345
    Abstract: A disk for liquid sample analysis that has means for detecting any chemical reaction between liquid sample and reagent, and that among others, enhances the accuracy of detecting of components of the liquid sample through “rapidly and homogeneously” dissolving of a solid reagent in the liquid sample. In particular, there is provided a disk for liquid sample analysis comprising one or two or more chambers created in a disk-shaped member and a flow channel for inter-chamber connection, wherein a porous body is disposed in at least one of the chambers, and wherein the porous body bears a reagent capable of reacting with a specified component of the liquid sample. On this disk for liquid sample analysis, the liquid sample can be moved by centrifugal force by rotation and capillary force occurring in the chambers and flow channel.
    Type: Application
    Filed: March 14, 2007
    Publication date: April 2, 2009
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventor: Tomohiro Yamamoto
  • Publication number: 20080227217
    Abstract: A reaction of a sample mixture liquid is detected accurately, by allowing a solid reagent to be dissolved and reacted in a liquid sample quickly and accurately. A disc main body, and at least one sample mixing unit provided at the disc main body are provided, and the sample mixing unit is provided with: a liquid sample reserve unit; a reagent chamber capable of disposing a plurality of the solid reagents; and a measurement chamber to which a sample mixture liquid containing a liquid sample and a solid reagent mixed in the reagent chamber is supplied. The reagent chamber has a form which allows a plurality of the solid reagents to be disposed in the direction substantially parallel to the radial direction of the disc in which centrifugal force is generated, or in the direction substantially perpendicular to the radial direction of the disc.
    Type: Application
    Filed: May 1, 2008
    Publication date: September 18, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Tomohiro YAMAMOTO, Toshihiko YOSHIOKA, Nobuhiko OZAKI
  • Patent number: 7402198
    Abstract: An adsorption-desorption material having a high carbon dioxide adsorption-desorption capability, a low pressure loss, a high thermal diffusion efficiency, and high resistance to repeated stresses, e.g., expansion and shrinkage, as well as an adsorption-desorption apparatus including the adsorption-desorption material, is provided. The adsorbent is composed of a three-dimensional network skeleton structure or a structure having three-dimensional network voids, the structure constructed by a compound having a carbon dioxide adsorption-desorption capability. The carbon dioxide adsorption-desorption apparatus is provided with this adsorbent.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: July 22, 2008
    Assignee: Bridgestone Corporation
    Inventors: Hisashi Mori, Tomohiro Yamamoto, Yasushige Shigyo, Tadashi Kuwahara
  • Patent number: 7327813
    Abstract: A digital receiving device includes a detecting means for detecting a specific code under a signal receiving state capable of successively receiving a desired signal, a setting means for setting a period for detecting the specific code as a non-communication state period, an adaptive filter having an adaptive mode and a non-adaptive mode, the adaptive mode by which a filter coefficient is sequentially updated so as to remove an ambient noise during the non-communication state period, and the non-adaptive mode by which the filter coefficient is stopped from being updated during a period except for the non-communication state period under the signal receiving state and a filter controlling means for controlling an operation for switching the adaptive mode and the non-adaptive mode of the adaptive filter.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: February 5, 2008
    Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuichi Murakami, Tomohiro Yamamoto, Akira Furuhashi, Kazunori Ono, Hiroki Okada
  • Patent number: 7300078
    Abstract: A pipe joint clamp for connecting piping members includes a circular holding portion in which flange portions of the piping members are clamped, and multiple flexion-shaped hinge portions, which protrude from the holding portion toward a diametrically outer side thereof. The hinge portions are resiliently deformable to accommodate a variation of outer diameters of the flange portions. Thus, a protrusion amount of the each hinge portion can be reduced. Accordingly, the space occupied by the clamp at the joint part of the piping members is decreased.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: November 27, 2007
    Assignee: DENSO Corporation
    Inventors: Tomohiro Yamamoto, Koji Hisaka
  • Patent number: 7267750
    Abstract: A biosensor comprising: an electrically insulating base plate; an electrode system comprising a working electrode and a counter electrode formed on the base plate; a cover member which is joined to the base plate to form a sample solution supply pathway for supplying a sample solution to the electrode system between the cover member and the base plate; and a reagent system comprising at least an oxidoreductase and an electron mediator disposed in the sample solution supply pathway, wherein the electron mediator is provided on the base plate and the oxidoreductase is provided on the cover member such that the electron mediator and the oxidoreductase are not in contact with each other.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: September 11, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Motokazu Watanabe, Tomohiro Yamamoto, Miwa Hasegawa, Shin Ikeda, Shiro Nankai
  • Patent number: 7056425
    Abstract: To provide an improved biosensor which allows easy addition of whole blood to the sensor and rapid supply of the added whole blood to a filter even in the case of collecting blood by fingertip centesis for measurement, a second air aperture is provided in a sample solution supply pathway including an electrode system and a reaction layer and communicating with a first air aperture on the terminal end side.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: June 6, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Miwa Hasegawa, Tomohiro Yamamoto, Shin Ikeda, Toshihiko Yoshioka
  • Publication number: 20060099107
    Abstract: In order to realize a sensor that is capable of promptly and accurately supplying a small amount of a liquid sample to a filtration part even if the sensor is not held substantially horizontally, this invention provides a sensor having means for supplying a liquid sample to the filtration part by capillary action.
    Type: Application
    Filed: May 11, 2004
    Publication date: May 11, 2006
    Inventor: Tomohiro Yamamoto
  • Publication number: 20060037478
    Abstract: An adsorption-desorption material having a high carbon dioxide adsorption-desorption capability, a low pressure loss, a high thermal diffusion efficiency, and high resistance to repeated stresses, e.g., expansion and shrinkage, as well as an adsorption-desorption apparatus including the adsorption-desorption material, is provided. The adsorbent is composed of a three-dimensional network skeleton structure or a structure having three-dimensional network voids, the structure constructed by a compound having a carbon dioxide adsorption-desorption capability. The carbon dioxide adsorption-desorption apparatus is provided with this adsorbent.
    Type: Application
    Filed: October 13, 2005
    Publication date: February 23, 2006
    Inventors: Hisashi Mori, Tomohiro Yamamoto, Yasushige Shigyo, Tadashi Kuwahara
  • Publication number: 20060022467
    Abstract: A pipe joint clamp for connecting piping members includes a circular holding portion in which flange portions of the piping members are clamped, and multiple flexion-shaped hinge portions, which protrude from the holding portion toward a diametrically outer side thereof. The hinge portions are resiliently deformable to accommodate a variation of outer diameters of the flange portions. Thus, a protrusion amount of the each hinge portion can be reduced. Accordingly, the space occupied by the clamp at the joint part of the piping members is decreased.
    Type: Application
    Filed: July 26, 2005
    Publication date: February 2, 2006
    Applicant: DENSO Corporation
    Inventors: Tomohiro Yamamoto, Koji Hisaka
  • Patent number: 6977032
    Abstract: A biosensor including an insulating base plate, an electrode system, a cover for covering the insulating base plate, at least one reaction layer, a sample solution supply pathway communicating with an air aperture at a terminal end side, a sample solution supply part and a filter provided between the sample solution supply pathway and the sample solution supply part to filter hemocytes, an end face and a top face of a primary portion of the filter are exposed and the sample solution supply part is provided adjacently to the primary side portion so as to provide an improved biosensor which allows easy addition of whole blood to the sensor and rapid supply of the added whole blood to a filter even in the case of collecting blood by fingertip centesis for measurement.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: December 20, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Miwa Hasegawa, Tomohiro Yamamoto, Shin Ikeda, Toshihiko Yoshioka
  • Patent number: 6966977
    Abstract: A sensor including an insulating base plate; an electrode system, provided on the base plate, having a measuring electrode and a counter electrode; a reaction layer including at least an oxidoreductase and an electron mediator; a sample solution supply pathway including the electrode system and the reaction layer; and a sample supply unit, wherein the sensor is so structured that, between the sample supply unit and the sample solution supply pathway, there is provided a filter having a function to filter out hemocytes and having a cross-sectional area larger than an opening of the sample solution supply pathway, and that plasma of a blood with hemocytes thereof having been filtered out is sucked into the inside of the sample solution supply pathway owing to capillary phenomena.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: November 22, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Miwa Hasegawa, Tomohiro Yamamoto, Motokazu Watanabe, Shin Ikeda, Shiro Nankai
  • Publication number: 20050072670
    Abstract: In order to provide a biosensor with high accuracy and excellent response where plasma obtained by filtration of blood rapidly arrives at an electrode system, in a biosensor comprising: an insulating base plate; an electrode system having a working electrode and a counter electrode which are provided on the base plate; a reaction layer including at least oxidoreductase and an electron mediator; a sample solution supply pathway which includes the electrode system and the reaction layer and has an inlet and an air aperture; a sample solution supply part for introducing a sample solution, which is in position apart from the sample solution supply pathway; and a first filter which is disposed between the sample solution supply pathway and the sample solution supply part for filtering the sample solution, where the filtrate filtered with the first filter is supplied into the sample solution supply pathway due to capillary action, the direction in which the sample solution passes through the first filter and the di
    Type: Application
    Filed: December 27, 2002
    Publication date: April 7, 2005
    Inventors: Miwa Hasegawa, Tomohiro Yamamoto, Motokazu Watanabe, Takahiro Nakaminami, Shin Ikeda, Toshihiko Yoshioka, Shiro Nankai
  • Publication number: 20050058232
    Abstract: A digital receiving device includes a detecting means for detecting a specific code under a signal receiving state capable of successively receiving a desired signal, a setting means for setting a period for detecting the specific code as a non-communication state period, an adaptive filter having an adaptive mode and a non-adaptive mode, the adaptive mode by which a filter coefficient is sequentially updated so as to remove an ambient noise during the non-communication state period, and the non-adaptive mode by which the filter coefficient is stopped from being updated during a period except for the non-communication state period under the signal receiving state and a filter controlling means for controlling an operation for switching the adaptive mode and the non-adaptive mode of the adaptive filter.
    Type: Application
    Filed: September 10, 2004
    Publication date: March 17, 2005
    Applicants: AISIN SEIKI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuichi Murakami, Tomohiro Yamamoto, Akira Furuhashi, Kazunori Ono, Hiroki Okada
  • Patent number: 6821410
    Abstract: Disclosed is a highly responsive biosensor comprising a cholesterol-oxidizing enzyme and cholesterol esterase. The biosensor comprises: an electrically insulating base plate; an electrode system including a working electrode and a counter electrode formed on the base plate; a cover member joined with the base plate to define a sample supply pathway through which a sample solution is introduced from a sample supply port to the electrode system, the sample supply pathway being formed between the cover member and the base plate; and a reagent layer formed in the sample supply pathway, wherein the reagent layer contains a cholesterol-oxidizing enzyme, cholesterol esterase, an electron mediator, and a buffer having a buffering capacity in an acidic pH range.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: November 23, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Motokazu Watanabe, Miwa Hasegawa, Tomohiro Yamamoto, Toshihiko Yoshioka, Shiro Nankai
  • Patent number: RE39390
    Abstract: There is provided a cholesterol sensor with high-accuracy and excellent response, whose object to be measured is whole blood, where plasma with which is obtained by filtering out hemocytes therein filtered in blood can rapidly reach an electrode system. In a biosensor where plasma with which is obtained by filtering out hemocytes therein filtered with by a filter is sucked into a sample solution supply pathway due to capillarity, there are formed: a first pressing part for holding a primary side portion of the filter from the bottom; a second pressing part for holding a secondary side portion of the filter from the top and the bottom; a third pressing part for holding the central portion of the filter from the top; and a void for surrounding the filter between the second pressing part and third pressing part.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: November 14, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Miwa Hasegawa, Tomohiro Yamamoto, Motokazu Watanabe, Takahiro Nakaminami, Shin Ikeda, Toshihiko Yoshioka, Shiro Nankai