Patents by Inventor Taku Sawaki

Taku Sawaki 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: 9033623
    Abstract: At a contact step in a tool radius adjusting method, a reference portion of a movable body provided radially movably on a housing of a boring tool and a position adjusting reference member fixed on a machine tool are brought into contact by sliding the movable body relative to the housing so that the position of a cutting blade comes to a predetermined position in a direction to go away from a rotational axis. Then, at an adjusting step, the position of the cutting blade relative to the rotational axis is adjusted by changing the relative position between a tool spindle holding the boring tool and the position adjusting reference member in a direction to come close to each other by drive mechanisms of the machine tool used for positioning a spindle head with the tool spindle relative to a workpiece in machining the workpiece with the cutting blade.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: May 19, 2015
    Assignee: JTEKT CORPORATION
    Inventors: Eiji Nakamura, Akihiko Kadota, Takashi Yokoyama, Yasuhiro Komai, Harumi Sawaki, Shun Sawaki, Aya Sawaki, Taku Sawaki
  • Publication number: 20150047703
    Abstract: Inorganic phosphor-containing polymer particles that include an inorganic phosphor and a transparent material. The transparent material is preferably a vinyl resin that is a polymer of a vinyl compound. It is preferable that the vinyl compound includes 10% by mass or more of a vinyl compound having a viscosity (at 25° C.) of from 5 mPa·s to 30 mPa·s, or includes at least one of a compound having a structure represented by the following Formula (I-1) or the following Formula (I-2). In Formulae (I-1) and (1-2), each of R1 and R2 independently represents a hydrogen atom or an alkyl group. R1 and R2 may be linked to each other to form a ring. The inorganic phosphor is preferably surface-modified with a surface treatment agent, more preferably surface-modified with a coupling agent, still more preferably surface-modified with a silicone oligomer having a reactive substituent.
    Type: Application
    Filed: March 8, 2013
    Publication date: February 19, 2015
    Applicant: Hitachi Chemical Company, Ltd.
    Inventors: Taku Sawaki, Kaoru Okaniwa, Takeshi Yamashita
  • Patent number: 8860165
    Abstract: The present invention provides a wavelength conversion-type photovoltaic cell sealing material, the sealing material including at least one light emitting layer containing a group of spherical phosphors, the group of spherical phosphors having a ratio of a median value D50 of the group of spherical phosphors to a total thickness t of the light emitting layer of from 0.1 to 1.0, where the median value D50 is a median value of a volume particle size distribution of the group of spherical phosphors, and an integrated value N of a number particle size distribution from D25 to D75 of the group of spherical phosphors being 5% or more, when D25 is a particle size value at 25% of an integrated value of the volume particle size distribution of the group of spherical phosphors and D75 is a particle size value at 75% of the integrated value of the volume particle size distribution of the group of spherical phosphors; and a photovoltaic cell module including the sealing material.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: October 14, 2014
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Kaoru Okaniwa, Taku Sawaki, Takeshi Yamashita
  • Publication number: 20130328149
    Abstract: The present invention provides a wavelength conversion-type photovoltaic cell sealing material, the sealing material including at least one light emitting layer containing a group of spherical phosphors, the group of spherical phosphors having a ratio of a median value D50 of the group of spherical phosphors to a total thickness t of the light emitting layer of from 0.1 to 1.0, where the median value D50 is a median value of a volume particle size distribution of the group of spherical phosphors, and an integrated value N of a number particle size distribution from D25 to D75 of the group of spherical phosphors being 5% or more, when D25 is a particle size value at 25% of an integrated value of the volume particle size distribution of the group of spherical phosphors and D75 is a particle size value at 75% of the integrated value of the volume particle size distribution of the group of spherical phosphors; and a photovoltaic cell module including the sealing material.
    Type: Application
    Filed: December 19, 2011
    Publication date: December 12, 2013
    Inventors: Kaoru Okaniwa, Taku Sawaki, Takeshi Yamashita
  • Publication number: 20130255778
    Abstract: A spherical phosphor includes a fluorescent substance having a maximum excitation wavelength of 400 nm or longer; and a transparent material containing the fluorescent substance, in which, in an excitation spectrum, an excitation spectral intensity in a wavelength region of from 340 nm to 380 nm is 50% or higher of an excitation spectral intensity at a maximum excitation wavelength. A wavelength conversion-type photovoltaic cell sealing material includes a light-permeable resin composition layer that contains the spherical phosphor and a sealing resin.
    Type: Application
    Filed: November 18, 2011
    Publication date: October 3, 2013
    Inventors: Kaoru Okaniwa, Takeshi Yamashita, Taku Sawaki
  • Publication number: 20130125985
    Abstract: A wavelength conversion type photovoltaic cell sealing material according to the present invention includes a first sealing layer that contains no fluorescent substance and a second sealing layer that contains a fluorescent substance. This wavelength conversion type photovoltaic cell sealing material is used as one of the light transmissive layers of a photovoltaic cell module and is disposed at a light receiving surface side of a solar cell.
    Type: Application
    Filed: May 24, 2011
    Publication date: May 23, 2013
    Inventors: Taku Sawaki, Kaoru Okaniwa, Takeshi Yamashita
  • Publication number: 20130074928
    Abstract: A wavelength conversion type photovoltaic cell sealing sheet of the present invention includes a dispersion medium resin, and a fluorescent material having an absorption wavelength peak at from 300 to 450 nm, wherein a content of an ultraviolet absorber other than the fluorescent substance is 0.15 parts by mass or less with respect to 100 parts by mass of the dispersion medium resin. Furthermore, a photovoltaic cell module of the present invention has a photovoltaic cell and the wavelength conversion type photovoltaic cell sealing sheet.
    Type: Application
    Filed: March 28, 2011
    Publication date: March 28, 2013
    Inventors: Taku Sawaki, Kaoru Okaniwa, Takeshi Yamashita, Hiroaki Morikawa
  • Publication number: 20130080116
    Abstract: A wavelength-converting resin composition for a photovoltaic cell, comprising: a fluorescent substance having a maximum absorption wavelength in an absorbance spectrum of which being ?max (nm); resin particles; and a dispersion medium resin, wherein a value of A1 (?), which is represented by the following Equation 1, at the maximum absorption wavelength ?max (nm) is 3.0×10?4 (O.D.
    Type: Application
    Filed: April 8, 2011
    Publication date: March 28, 2013
    Applicant: Hitachi Chemical Company ,Ltd.
    Inventors: Kaoru Okaniwa, Takeshi Yamashita, Taku Sawaki
  • Publication number: 20130068299
    Abstract: A spherical phosphor is formed by including a fluorescent substance and a transparent material including the fluorescent substance. In addition, a wavelength conversion-type photovoltaic cell sealing material is formed by including a light transmissive resin composition layer including the spherical phosphor and a sealing resin.
    Type: Application
    Filed: April 8, 2011
    Publication date: March 21, 2013
    Applicant: Hitachi Chemical Company, Ltd.
    Inventors: Kaoru Okaniwa, Takeshi Yamashita, Taku Sawaki
  • Publication number: 20130064616
    Abstract: At a contact step in a tool radius adjusting method, a reference portion of a movable body provided radially movably on a housing of a boring tool and a position adjusting reference member fixed on a machine tool are brought into contact by sliding the movable body relative to the housing so that the position of a cutting blade comes to a predetermined position in a direction to go away from a rotational axis. Then, at an adjusting step, the position of the cutting blade relative to the rotational axis is adjusted by changing the relative position between a tool spindle holding the boring tool and the position adjusting reference member in a direction to come close to each other by drive mechanisms of the machine tool used for positioning a spindle head with the tool spindle relative to a workpiece in machining the workpiece with the cutting blade.
    Type: Application
    Filed: November 10, 2010
    Publication date: March 14, 2013
    Applicant: JTEKT Corporation
    Inventors: Eiji Nakamura, Akihiko Kadota, Takashi Yokoyama, Yasuhiro Komai, Harumi Sawaki, Shun Sawaki, Aya Sawaki, Taku Sawaki
  • Patent number: 8365576
    Abstract: Disclosed is a method for detecting a low concentration gas. In the method, a measurand gas containing the target gas in a concentration of 50 ppm or less is supplied to an oscillation element which contains a quartz crystal resonator and a zeolite including a metal complex (such as a zeolite including a cobalt phthalocyanine complex) present on or above the quartz crystal resonator. The target gas is then detected through a change in resonance frequency of the quartz crystal resonator, the change being caused by the adsorption of the target gas by the metal-complex-including zeolite.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: February 5, 2013
    Assignee: National University Corporation Nagoya Institute of Technology
    Inventors: Hideki Masuda, Tomohiko Inomata, Taku Sawaki
  • Publication number: 20100294020
    Abstract: Disclosed is a method for detecting a low concentration gas. In the method, a measurand gas containing the target gas in a concentration of 50 ppm or less is supplied to an oscillation element which contains a quartz crystal resonator and a zeolite including a metal complex (such as a zeolite including a cobalt phthalocyanine complex) present on or above the quartz crystal resonator. The target gas is then detected through a change in resonance frequency of the quartz crystal resonator, the change being caused by the adsorption of the target gas by the metal-complex-including zeolite.
    Type: Application
    Filed: November 24, 2009
    Publication date: November 25, 2010
    Applicant: NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Hideki Masuda, Tomohiko Inomata, Taku Sawaki