Patents by Inventor Tomoya Shimizu

Tomoya Shimizu 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: 8722780
    Abstract: The present invention provides a perfluoroelastomer composition comprising: a perfluoroelastomer having a nitrogen-containing curing site; and a catalyst mixture comprising: a tertiary amine; and an organic dicarboxylic acid represented by general formula (1) or (2) in an amount of 0.4 to 2 mol per mol of the tertiary amine: HOOC—COOH??(1) HOOC-A-COOH??(2) wherein A in formula (2) is an alkyl group having 1 to 10 carbon atoms or a phenyl group, which may be partially or fully fluorinated. Also disclosed is a perfluoroelastomer molded article obtained from the composition.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: May 13, 2014
    Assignee: Nichias Corporation
    Inventors: Tomoya Shimizu, Naoya Kuzawa, Takeshi Kuboyama, Hideyuki Shishitani
  • Patent number: 8653958
    Abstract: A collision detector includes a chamber, a pressure sensor, and a bumper absorber. The chamber defines a hollow space, and the pressure sensor detects a pressure in the hollow space. The bumper absorber absorbs impact caused by a collision of an object with a vehicle, and covers an outer periphery of the chamber. The chamber and the bumper absorber are interposed with a gap in an entire width of the vehicle. In case of collision, the chamber is not bound by the bumper absorber deformed by the impact of the collision, thereby enabling an accurate detection of the collision of the vehicle with the object.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: February 18, 2014
    Assignee: Denso Corporation
    Inventors: Takatoshi Tanabe, Tomoya Shimizu
  • Publication number: 20130240729
    Abstract: A sample is analyzed efficiently with combining a structural defect detection and a physical information measurement so as to determine whether a structural defect is the defect that degrades the device performance or not, not only by detecting the structural defect exists in the sample, but also by measuring a physical information that occurs due to the structural defect. It comprises a structural defect detection device 2 that detect a structural defect KK of a sample W, a structural defect setting device that sets up the structural defect KK for which a physical information is to be measured based on the defect information among the structural defect KK detected by the structural defect detection device 2, and a physical information measurement device 3 that measures the physical information of the defect region KR including the structural defect set up by the structural defect setting device.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 19, 2013
    Applicant: HORIBA, LTD.
    Inventor: Tomoya Shimizu
  • Patent number: 8181487
    Abstract: An optical fiber preform manufacturing method includes: supporting a drilling jig in a radial direction of a preform that is cylinder-shaped; moving the drilling jig in a longitudinal direction of the preform; and forming a plurality of slits each extending in the longitudinal direction and each directed from an outer side of the preform toward a center the preform, and a plurality of holes each extending in the longitudinal direction and each connecting with an end of one of the plurality of slits in a depth direction of the one of the plurality of slits.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: May 22, 2012
    Assignees: Furukawa Electric Co., Ltd., Nippon Telegraph and Telephone Corporation
    Inventors: Ryuichi Sugizaki, Naomi Kumano, Iwao Shimotakahara, Harumi Inaba, Takeshi Yagi, Tomoya Shimizu, Toshio Kurashima, Kazuhide Nakajima
  • Publication number: 20120042696
    Abstract: A measuring method of a longitudinal distribution of bending loss of an optical fiber includes calculating an arithmetical mean value I(x) from two backscattering light intensities of two backscattering light at a position x obtained by bidirectional OTDR measurement of the optical fiber; and obtaining a bending loss value at the position x from a mode field diameter 2W(x) and a relative refractive index difference ?(x) at the position x calculated from the arithmetical mean value.
    Type: Application
    Filed: August 19, 2011
    Publication date: February 23, 2012
    Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, FUJIKURA LTD.
    Inventors: Shoji TANIGAWA, Itaru ISHIDA, Shoichiro MATSUO, Toshio KURASHIMA, Kazuhide NAKAJIMA, Tomoya SHIMIZU, Takashi MATSUI, Yukihiro GOTO
  • Publication number: 20120044482
    Abstract: A measuring method of a hole diameter of a holey optical fiber includes calculating an arithmetical mean value I(x) from two backscattering light intensities at a position x of two backscattering light waveforms of the holey optical fiber, in which the two backscattering light waveforms are obtained by OTDR measurement; and obtaining the hole diameter at the position x, based on a correlation between an arithmetical mean value I(x) and an hole diameter of the holey optical fiber that is obtained in advance.
    Type: Application
    Filed: August 19, 2011
    Publication date: February 23, 2012
    Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, FUJIKURA LTD.
    Inventors: Itaru ISHIDA, Shoji TANIGAWA, Shoichiro MATSUO, Toshio KURASHIMA, Kazuhide NAKAJIMA, Tomoya SHIMIZU, Takashi MATSUI, Yukihiro GOTO
  • Publication number: 20120033923
    Abstract: Provided is a holey single-mode optical fiber including a core not having holes, and a clad having holes extending in a longitudinal direction, in which a refraction index of the core is larger than that of a portion of the clad other than the holes, a radius r1 of the core is within a range of 2.2 to 3.2 ?m, a relative refraction index difference ? of the core to the clad is within a range of 0.3 to 0.56%, a distance Rin between a center of the core and an inner edge of the holes is 2.0 to 3.5 times the radius r1 of the core, an air-filling fraction F is within a range of 30 to 50%, a cable cut-off wavelength is 1.0 ?m or less, a zero-dispersion wavelength is within a range of 1260 to 1460 nm, and a bending loss characteristic at a bending radius of 10 mm is 10 dB/m or less.
    Type: Application
    Filed: October 14, 2011
    Publication date: February 9, 2012
    Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, FUJIKURA LTD.
    Inventors: Katsuhiro TAKENAGA, Shoji TANIGAWA, Kazuhide NAKAJIMA, Tomoya SHIMIZU, Chisato FUKAI
  • Publication number: 20100326139
    Abstract: An optical fiber preform manufacturing method includes: supporting a drilling jig in a radial direction of a preform that is cylinder-shaped; moving the drilling jig in a longitudinal direction of the preform; and forming a plurality of slits each extending in the longitudinal direction and each directed from an outer side of the preform toward a center the preform, and a plurality of holes each extending in the longitudinal direction and each connecting with an end of one of the plurality of slits in a depth direction of the one of the plurality of slits.
    Type: Application
    Filed: September 3, 2010
    Publication date: December 30, 2010
    Applicants: FURUKAWA ELECTRIC CO., LTD., NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Ryuichi SUGIZAKI, Naomi Kumano, Iwao Shimotakahara, Harumi Inaba, Takeshi Yagi, Tomoya Shimizu, Toshio Kurashima, Kazuhide Nakajima
  • Patent number: 7666948
    Abstract: The present invention provides an elastomer composition comprising a mixture of (A) a perfluoroelastomer and (B) at least one elastomer selected from fluorine rubbers, silicone rubbers and ethylene-propylene based rubbers, in a mixing ratio (A/B) of from 0.5/99.5 to 80/20 in terms of weight ratio.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: February 23, 2010
    Assignee: Nichias Corporation
    Inventors: Seiji Aizawa, Tomoya Shimizu, Naoya Kuzawa, Hiroshi Saito
  • Publication number: 20090221758
    Abstract: The present invention provides a perfluoroelastomer composition comprising: a perfluoroelastomer having a nitrogen-containing curing site; and a catalyst mixture comprising: a tertiary amine; and an organic dicarboxylic acid represented by general formula (1) or (2) in an amount of 0.4 to 2 mol per mol of the tertiary amine: HOOC—COOH??(1) HOOC-A-COOH??(2) wherein A in formula (2) is an alkyl group having 1 to 10 carbon atoms or a phenyl group, which may be partially or fully fluorinated. Also disclosed is a perfluoroelastomer molded article obtained from the composition.
    Type: Application
    Filed: February 26, 2009
    Publication date: September 3, 2009
    Inventors: Tomoya Shimizu, Naoya Kuzawa, Takeshi Kuboyama, Hideyuki Shishitani
  • Publication number: 20090027181
    Abstract: A collision detector includes a chamber, a pressure sensor, and a bumper absorber. The chamber defines a hollow space, and the pressure sensor detects a pressure in the hollow space. The bumper absorber absorbs impact caused by a collision of an object with a vehicle, and covers an outer periphery of the chamber. The chamber and the bumper absorber are interposed with a gap in an entire width of the vehicle. In case of collision, the chamber is not bound by the bumper absorber deformed by the impact of the collision, thereby enabling an accurate detection of the collision of the vehicle with the object.
    Type: Application
    Filed: July 21, 2008
    Publication date: January 29, 2009
    Applicant: DENSO CORPORATION
    Inventors: Takatoshi Tanabe, Tomoya Shimizu
  • Publication number: 20060148991
    Abstract: The present invention provides an elastomer composition comprising a mixture of (A) a perfluoroelastomer and (B) at least one elastomer selected from fluorine rubbers, silicone rubbers and ethylene-propylene based rubbers, in a mixing ratio (A/B) of from 0.5/99.5 to 80/20 in terms of weight ratio.
    Type: Application
    Filed: December 27, 2005
    Publication date: July 6, 2006
    Applicant: NICHIAS CORPORATION
    Inventors: Seiji Aizawa, Tomoya Shimizu, Naoya Kuzawa, Hiroshi Saito
  • Publication number: 20060047075
    Abstract: In order to provide a fluoro-rubber composite which hardly reduces a clean degree of a manufacturing environment and in which any of cracks is hardly generated, a rubber material using the same, and a method of manufacturing a fluoro-rubber molded product, a fluoro rubber is mixed with a tetrafluoroethylene/propylene system copolymer or a tetrafluoroethylene/propylene/vinylidenefluoride system copolymer, and a fluorine thermoplastic resin, and the resulting mixture is compounded with a peroxide cross-linking agent, and a co-cross-linking agent, and if necessary, any other suitable filler or the like, thereby obtaining a fluoro-rubber composite, and cross-linking is performed for the resulting fluoro-rubber composite, thereby obtaining a fluoro-rubber molded product.
    Type: Application
    Filed: August 29, 2005
    Publication date: March 2, 2006
    Applicant: NICHIAS CORPORATION
    Inventors: Tomoya Shimizu, Takeshi Kuboyama, Naoya Kuzawa, Hiroshi Saito
  • Patent number: 6571138
    Abstract: A location programming apparatus and method according to the present invention generates operation control information consisting of a locating control parameter and a locating program for a controller for controlling a motor for operating a subject which must be controlled, the location programming apparatus including: locating control type setting means (control S/W) for setting locating control type for controlling the operation of the subject which must be controlled; graphical data generating means (control S/W) for graphically generating graph data of the locating program on a work memory in accordance with the set locating control type; and operation control information generating means (control S/W) for generating operation control information on a parameter memory and a locating program memory in accordance with graph data stored in the work memory.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: May 27, 2003
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Misako Okada, Hidehiko Matsumoto, Nobuyasu Takaki, Yuuko Tomita, Tomoya Shimizu, Tatsuzo Hayashi