Patents by Inventor Masatoshi Takahashi

Masatoshi Takahashi 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: 20100233287
    Abstract: A preventing or treating agent for glaucoma is provided. This drug has a strong action of reducing intraocular pressure such that the intraocular pressure can be reduced even from the normal intraocular pressure. More specifically, a prophylactic or therapeutic agent for glaucoma, a preventing or treating agent for ocular hypertension, and eye drops containing (S)-(?)-1-(4-fluoro-5-isoquinolinesulfonyl)-2-methyl homopiperazine or its salt and phosphoric acid or its salt are provided.
    Type: Application
    Filed: May 24, 2010
    Publication date: September 16, 2010
    Applicant: Kowa Co., Ltd.
    Inventors: Shin Sugimoto, Ken Mizuno, Masatoshi Takahashi, Makoto Kanebako
  • Publication number: 20100209767
    Abstract: The invention provides a method for evaluating the safety of a battery under an internal short-circuit condition. The battery includes: an electrode group including a positive electrode, a negative electrode, and an insulating layer for electrically insulating the electrodes, which are wound or laminated; an electrolyte; a housing for housing the electrode group and the electrolyte; and a current-collecting terminal for electrically connecting the electrode group and the housing. The method of the invention includes: placing a foreign object at a location inside the electrode group of the battery where the positive electrode and the negative electrode face each other; and pressing the location by the pressure applied by a pressing tool to locally crush the insulating layer between the positive and negative electrodes, thereby causing an internal short-circuit.
    Type: Application
    Filed: April 22, 2008
    Publication date: August 19, 2010
    Inventors: Shinji Kasamatsu, Mikinari Shimada, Masayuki Nagamine, Yasuo Fukase, Masatoshi Takahashi, Masato Iwanaga
  • Patent number: 7767877
    Abstract: A liquid-absorbing core which is for use in suction type drug volatilizers which comprises hydrophilic fibers and/or water-absorbing fibers. The hydrophilic fibers have an affinity for water, and are rayon, cotton, etc. Especially preferred is rayon because it has a high affinity for water. Examples of the water-absorbing fibers include water-absorbing synthetic fibers made of a polymer such as polyvinyl alcohol or polysodium acrylate and other synthetic fibers treated by, e.g., adding and adhering polyvinyl alcohol or polysodium acrylate thereto or coating them with the polymer. In the liquid-absorbing core, the hydrophilic fibers and/or water-absorbing fibers may be disposed so as to have a porosity of 10 to 80%.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: August 3, 2010
    Assignee: S.T. Chemical Co., Ltd.
    Inventors: Masatoshi Takahashi, Kanji Mizunaka
  • Publication number: 20100173447
    Abstract: A solar cell (100) comprising a semiconductor solar cell substrate (66) having a light receiving surface formed on the first major surface and generating photovoltaic power based on the light impinging on the light receiving surface, wherein the light receiving surface of the semiconductor solar cell substrate (66) is coated with a light receiving surface side insulating film (61) composed of an inorganic insulating material where the cationic component principally comprising silicon, and the light receiving surface side insulating film (61) is a low hydrogen content inorganic insulating film containing less than 10 atm % of hydrogen. A solar cell having an insulating film exhibiting excellent passivation effect insusceptible to aging can thereby be provided.
    Type: Application
    Filed: January 27, 2010
    Publication date: July 8, 2010
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Masatoshi Takahashi, Hiroyuki Ohtsuka, Hideki Matsumura, Atsushi Masuda, Akira Izumi
  • Patent number: 7738463
    Abstract: OLT is provided with a field for storing the number of effective bits for searching ONU serial numbers, a field for storing a search start serial number and a field for storing a search end serial number, and ONU serial numbers are searched from the search start serial number to the search end serial number within the number of effective bits to automatically perform acquisition of the ONU serial number and ONU connection. An ONU automatic connection method for an ATM-PON system is provided by which an ONU serial number is searched efficiently without registering the ONU serial number from OpS to OLT.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: June 15, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Toshiyuki Saito, Takahiro Yoshida, Yasunari Shinohara, Masatoshi Takahashi
  • Patent number: 7615391
    Abstract: A method of fabricating a solar cell forms a large number of grooves on a first main surface of a p-type silicon single crystal substrate sliced out from a silicon single crystal ingot as described below. First an edge portion of a groove-carving blade is projected out from a flat substrate feeding surface of a working table by a predetermined height. The p-type silicon single crystal substrate is moved along the substrate feeding surface towards the rotating groove-carving blade while keeping a close contact of the first main surface thereof with the substrate feeding surface. Electrodes are then formed on the inner side face of thus-carved grooves only on one side in the width-wise direction thereof.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: November 10, 2009
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Satoyuki Ojima, Hiroyuki Ohtsuka, Masatoshi Takahashi, Takenori Watabe
  • Patent number: 7604901
    Abstract: A non-aqueous electrolyte secondary cell that has excellent high-temperature cycle characteristics and that is highly safe enough to prevent overcharge is provided. The non-aqueous electrolyte secondary cell has a positive electrode for reversibly intercalating-deintercalating lithium ions, a negative electrode for reversibly intercalating-deintercalating lithium ions, and a non-aqueous electrolyte having a non-aqueous solvent and an electrolyte salt. The non-aqueous solvent includes a cycloalkylbenzene derivative and an alkylbenzene derivative having a quaternary carbon directly bonded to a benzene ring and not having a cycloalkyl group directly bonded to the benzene ring.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: October 20, 2009
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kazuyasu Fujiwara, Masatoshi Takahashi, Masato Iwanaga
  • Publication number: 20090213649
    Abstract: A semiconductor processing device according to the invention includes a first non-volatile memory (21) for erasing stored information on a first data length unit, a second non-volatile memory (22) for erasing stored information on a second data length unit, and a central processing unit (2), and capable of inputting/outputting encrypted data from/to an outside. The first non-volatile memory is used for storing an encryption key to be utilized for encrypting the data. The second non-volatile memory is used for storing a program to be processed by the central processing unit. The non-volatile memories to be utilized for storing the program and for storing the encryption key are separated from each other, and the data lengths of the erase units of information to be stored in the non-volatile memories are defined separately.
    Type: Application
    Filed: August 29, 2002
    Publication date: August 27, 2009
    Inventors: Masatoshi Takahashi, Takanori Yamazoe, Kozo Katayama, Toshihiro Tanaka, Yutaka Shinagawa, Hiroshi Watase, Takeo Kanai, Nobutaka Nagasaki
  • Publication number: 20090087686
    Abstract: An aspect of the present invention relates to a magnetic recording medium comprising a coating layer on a nonmagnetic support, wherein the coating layer comprises a nonmagnetic layer comprising a nonmagnetic powder and a binder and a magnetic layer comprising a ferromagnetic powder and a binder in this order, the nonmagnetic support comprises a main component in the form of a resin obtained by mixing and/or copolymerizing a polyester and a polymer having compatibility with the polyester, has a glass transition temperature of equal to or higher than 80° C. but less than 125° C., and has a heat absorption peak, based on enthalpy relaxation, ranging from 0.5 to 2.0 J/g. Another aspect of the present invention relates to a method of manufacturing a magnetic recording medium.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 2, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Katsuhiko MEGURO, Masatoshi Takahashi
  • Publication number: 20090020158
    Abstract: The present invention is a method for manufacturing a solar cell by forming a p-n junction in a semiconductor substrate having a first conductivity type, wherein, at least: a first coating material containing a dopant and an agent for preventing a dopant from scattering, and a second coating material containing a dopant, are coated on the semiconductor substrate having the first conductivity type so that the second coating material may be brought into contact with at least the first coating material; and, a first diffusion layer formed by coating the first coating material, and a second diffusion layer formed by coating the second coating material the second diffusion layer having a conductivity is lower than that of the first diffusion layer are simultaneously formed by a diffusion heat treatment; a solar cell manufactured by the method; and a method for manufacturing a semiconductor device.
    Type: Application
    Filed: April 11, 2006
    Publication date: January 22, 2009
    Applicants: SHIN-ETSU HANDOTAI CO., LTD., NAOETSU ELECTRONICS CO., LTD., SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroyuki Ohtsuka, Masatoshi Takahashi, Naoki Ishikawa, Shigenori Saisu, Toyohiro Ueguri, Satoyuki Ojima, Takenori Watabe, Takeshi Akatsuka, Tsutomu Onishi
  • Publication number: 20090020156
    Abstract: The present invention is a method for manufacturing a solar cell by forming a pn junction in a semiconductor substrate having a first conductivity type to manufacture a solar cell, including at least: applying a first coating material containing a dopant onto the semiconductor substrate having the first conductivity type; and performing vapor-phase diffusion heat treatment to form a first diffusion layer in a region applied with the first coating material and a second diffusion layer, which is formed next to the first diffusion layer through vapor-phase diffusion, with a conductivity lower than a conductivity of the first diffusion layer at the same time, and provides a solar cell.
    Type: Application
    Filed: April 7, 2006
    Publication date: January 22, 2009
    Applicants: SHIN-ETSU HANDOTAI CO., LTD., SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroyuki Ohtsuka, Naoki Ishikawa, Masatoshi Takahashi
  • Patent number: 7452616
    Abstract: A leader tape where an non-magnetic under layer that contains a powder and a binder and a magnetic upper layer are sequentially laminated on at least one face of a support, in which F5 values of the support in a machine direction (MD) and in a transverse direction (TD) are from 80 to 120 MPa respectively, the F5 value in MD is larger than that in TD, and a difference between the F5 value in MD and that in TD is 15 MPa or less.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: November 18, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Masatoshi Takahashi, Mikio Ohno
  • Patent number: 7438983
    Abstract: A magnetic recording medium is composed of a nonmagnetic support provided with on one side of the support a magnetic layer containing a ferromagnetic powder and a binder, and a backing layer on the other side of the nonmagnetic support, wherein the nonmagnetic support is a polyester film having an intrinsic viscosity of from 0.40 to 0.60 dl/g, and contains fillers having filler diameters of from 10 to 500 nm at a filler density of from 1/100 to 50/100 ?m2.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: October 21, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Masatoshi Takahashi, Katsuhiko Meguro
  • Publication number: 20080206645
    Abstract: Provided is a non-aqueous electrolyte battery with excellent volume energy density and high safety. The battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. Between the positive and negative electrodes is interposed a microporous layer including insulating inorganic particles and a polyolefin. It is preferable that the microporous layer has a thickness of 1 to 10 ?m, the polyolefin is polyethylene having a weight-average molecular weight of 500000 or greater, and the insulating inorganic particles have an average particle size of 0.1 to 2 ?m.
    Type: Application
    Filed: February 27, 2008
    Publication date: August 28, 2008
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventor: Masatoshi TAKAHASHI
  • Patent number: 7381482
    Abstract: A hexagonal ferrite magnetic powder having an average tabular diameter of from 15 to 28 nm, a coercive force (Hc) of from 2,000 to 5,000 Oe (from 160 to 400 kA/m), a switching field distribution (SFD) of from 0.3 to 0.7 and a D70/D50 of from 1.05 to 1.25. This magnetic powder can be obtained by melting and quenching starting materials to obtain an amorphous product, and thermally treating the product, which comprises increasing a temperature at a rate of 300 to 500° C./hr in a temperature range of 550 to 600° C. in the thermal treatment before the temperature reaches the thermally treating temperature.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: June 3, 2008
    Assignees: Asahi Techno Glass Corporation, FUJIFILM Corporation
    Inventors: Nobuo Yamazaki, Masatoshi Takahashi, Akira Manabe, Hiroyuki Suzuki
  • Patent number: 7368203
    Abstract: The present invention provides a non-aqueous electrolyte secondary cell that has good high-temperature cycle characteristics and good high-temperature standing resistance, and that is highly safe enough to prevent overcharge. The non-aqueous electrolyte secondary cell of the invention utilizes a non-aqueous electrolyte that includes a vinylene carbonate derivative, a cyclic sulfite derivative, and both/either of a phenylcycloalkane derivative and/or an alkylbenzene derivative having a quaternary carbon directly bonded to a benzene ring.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: May 6, 2008
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Masato Iwanaga, Kazuyasu Fujiwara, Ryuji Ohshita, Masayuki Terasaka, Masatoshi Takahashi
  • Patent number: 7368188
    Abstract: A magnetic recording medium including a polymer support having thereon at least one magnetic layer containing a ferromagnetic metal powder having an average major axis length of from 20 to 100 nm or a ferromagnetic hexagonal ferrite powder having an average tabular diameter of from 5 to 40 nm and a binder, the polymer support having an intrinsic viscosity of from 0.47 to 0.51 dL/g, a Young's modulus in the machine direction of from 7.0 to 8.6 GPa, a Young's modulus in the transverse direction of from 5.4 to 8.0 GPa, and a breaking strength in the transverse direction of from 370 to 450 MPa.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: May 6, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Katsuhiko Meguro, Masatoshi Takahashi
  • Patent number: 7361422
    Abstract: A leader tape in which an non-magnetic under layer that contains a powder and a binder and a magnetic upper layer are sequentially laminated on at least one side of a support, a center line average roughness (Ra) of a surface of the support is from 30 to 50 nm, and a center line average roughness (Ra) of the multi layer coated surface is larger than that (Ra) of an opposite surface of the support, and the difference is at most 4 nm.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: April 22, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Masatoshi Takahashi, Mikio Ohno
  • Patent number: 7355114
    Abstract: An OECO solar cell using a semiconductor single crystal substrate having a plurality of grooves, wherein a minimum groove depth h of each groove always satisfies the relation of h?W1tan ? where ? represents an angle between a line connecting the lower end, along the thickness-wise direction of the semiconductor single crystal substrate, of an electrode formed in the groove and the upper end of the inner side face of the same groove having no electrode formed thereon, and a reference line normal to the thickness-wise direction, and W1 represents a distance between both opening edges of the groove; wherein the semiconductor single crystal substrate has thickness decreasing from a first side of a first main surface to a second side opposed to the first side; and wherein the plurality of grooves have a depth distribution of being deepest at a thickest position of the substrate, and a gradually becoming shallower towards a thinnest position of the substrate.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: April 8, 2008
    Assignees: Shin-Etsu Handotai Co., Ltd., Shin-Etsu Chemical Co., Ltd.
    Inventors: Satoyuki Ojima, Hiroyuki Ohtsuka, Masatoshi Takahashi, Takenori Watabe
  • Patent number: 7354233
    Abstract: In a bookbinding machine, an image forming apparatus, a prebinding apparatus and a bookbinding apparatus are coupled on line in this order. In the prebinding apparatus, a sheet aligning section, a slitting section which cuts off margins at both side portions of a sheet of paper, a cutting section which cuts off top and bottom margins, and a creasing section are arranged in this order. The prebinding apparatus is provided with a control section which sorts out supplied sheets of paper into those which need an SCC step and those which do not, and performs the SCC step only on the sheets of paper that need the SCC step.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: April 8, 2008
    Assignee: Duplo Corporation
    Inventors: Yutaka Oki, Masatoshi Takahashi, Yuichi Misawa