Patents by Inventor Takashi Matsuda

Takashi Matsuda 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: 10361678
    Abstract: An acoustic wave resonator includes: a piezoelectric substrate; and an IDT located on the piezoelectric substrate and including a pair of comb-shaped electrodes facing each other, each of the pair of comb-shaped electrodes including a grating electrode exciting an acoustic wave and a bus bar to which the grating electrode is connected, wherein an anisotropy coefficient in a cross region where the grating electrodes of the pair of comb-shaped electrodes cross each other is positive; an anisotropy coefficient in a gap region located between a tip of the grating electrode of one of the pair of comb-shaped electrodes and the bus bar of the other is less than the anisotropy coefficient in the cross region, and an acoustic velocity of an acoustic wave propagating through the gap region is equal to or less than an acoustic velocity of an acoustic wave propagating through the cross region at an antiresonant frequency.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: July 23, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Masafumi Iwaki, Yoshio Satoh, Tabito Tanaka, Hidetaro Nakazawa, Takashi Matsuda, Jun Tsutsumi
  • Publication number: 20190222195
    Abstract: An acoustic wave resonator includes: a piezoelectric substrate; and an IDT that is located on the piezoelectric substrate and includes comb-shaped electrodes facing each other, each of the comb-shaped electrodes having grating electrode and a bus bar connected to the grating electrodes, a duty ratio of grating electrodes of the comb-shaped electrodes in a center region of an overlap region differing from a duty ratio of grating electrodes of the comb-shaped electrodes in an edge region of the overlap region in an arrangement direction of the grating electrodes, the grating electrodes of each of the comb-shaped electrodes overlapping with the grating electrodes of the other in the overlap region, a grating electrode of a first one of the comb-shaped electrodes in the center region having a different width from a grating electrode of a second one of the comb-shaped electrodes in the center region.
    Type: Application
    Filed: October 30, 2018
    Publication date: July 18, 2019
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Takashi MATSUDA, Masafumi IWAKI
  • Patent number: 10355668
    Abstract: An acoustic wave device includes: a Y-cut X-propagation lithium tantalate substrate having a cut angle of 20° or more and 48° or less; and a grating electrode that is composed of one or more metal films laminated on the substrate, and excites an acoustic wave, wherein when a density of each metal film in the one or more metal films is represented by ?i, a Poisson's ratio of each metal film is represented by Pi, a film thickness of each metal film is represented by hi, a density of Cu is represented by ?0, a Poisson's ratio of Cu is represented by P0 and a pitch is represented by ?, a total value of “(hi/?)×(?i/?0)×(Pi/P0)” for each metal film with respect to the one or more metal films is more than 0.08.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: July 16, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Masafumi Iwaki, Yoshio Sato, Tabito Tanaka, Hidetaro Nakazawa, Takashi Matsuda, Jun Tsutsumi
  • Publication number: 20190207583
    Abstract: An acoustic wave device includes: a piezoelectric substrate; and a pair of comb-shaped electrodes that is located on the piezoelectric substrate, includes a metal film, and excites a surface acoustic wave, the metal film being mainly composed of a metal having a melting point equal to or higher than a melting point of Pt, the metal film having a first region in which a crystal grain has a columnar shape and a second region that is located on and/or under the first region in a stacking direction and has less crystallinity than the first region or has an amorphous structure.
    Type: Application
    Filed: November 21, 2018
    Publication date: July 4, 2019
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Shinpei MIURA, Satoshi IMASU, Takashi MATSUDA, Masafumi IWAKI
  • Publication number: 20190195453
    Abstract: A vehicle headlamp includes a projection lens, a first lens, a second lens, a first light source, and a second light source. The first lens and the second lens are disposed behind the projection lens. The first light source is disposed behind the first lens. The second light source is disposed behind the second lens. The first lens and the second lens are disposed so as to deviate from an optical axis of the projection lens and to be opposite to each other.
    Type: Application
    Filed: December 3, 2018
    Publication date: June 27, 2019
    Inventors: YOSHINORI SAKAMOTO, KENICHIRO MASE, TAKASHI MATSUDA
  • Publication number: 20190192400
    Abstract: A lip cosmetic has a high transparency without giving unnatural whiteness and exerts a remarkable effect of ultraviolet ray protection over a broad wavelength range including the UVA and UVB regions. The lip cosmetic includes (A) at least 5% by mass of UV absorbers; wherein said (A) UV absorbers comprises (A1) at least one UV absorber selected from a group consisting of octocrylene, dimethicodiethylbenzalmalonate and diethylamino hydroxybenzoyl hexyl benzoate, and (A2) ethylhexyl methoxycinnamate; (B) a high-viscosity oil component in a range of 30% by mass to 70% by mass thereof; (C) a low-viscosity oil component in a range of 20% by mass to 40% by mass thereof, and (D) titanium dioxide and zinc oxide of which a total content is at most 0.5% by mass thereof; and wherein a sun-protection-factor (SPF) of the lip cosmetic is at least 20, and a critical wavelength thereof is at a shortest 370 nm.
    Type: Application
    Filed: November 18, 2016
    Publication date: June 27, 2019
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: Shihoka OHASHI, Yukiko HIRUMA, Takashi MATSUDA, Takashi MATSUI
  • Publication number: 20190185433
    Abstract: Provision of a stabilized crystal of 6-(3-chloro-2-fluorobenzyl)-1-[(S)-1-hydroxymethyl-2-methylpropyl]-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (compound A). A crystal of compound A, which shows a particular X-ray powder diffraction pattern of a characteristic diffraction peaks at diffraction angles 2?(°) as measured by X-ray powder diffractmetry.
    Type: Application
    Filed: July 20, 2018
    Publication date: June 20, 2019
    Applicant: Japan Tobacco Inc.
    Inventors: Motohide SATOH, Takahisa MOTOMURA, Takashi MATSUDA, Kentaro KONDO, Koji ANDO, Koji MATSUDA, Shuji MIYAKE, Hideto UEHARA
  • Publication number: 20190170315
    Abstract: A lighting device includes a light emitting element; a first lens that captures and emits light generated by the light emitting element; and a second lens that captures light emitted from the first lens and emits the light in a predetermined direction. The first lens includes a first-lens-entrance through which the light generated by the light emitting element enters, a first lens exit that emits the light entered from the first-lens-entrance and transmitted through an inside of the first lens, and a plurality of first-lens-side-portion-wall-surfaces that are provided between the first-lens-entrance and the first lens exit. The plurality of first-lens-side-portion-wall-surfaces include a reflection-side-surface-portion that reflects the light entered the inside of the first lens from the first-lens-entrance, and a side surface portion that is configured to allow light having a luminous intensity smaller than a luminous intensity of light entering the reflection-side-surface-portion to enter.
    Type: Application
    Filed: April 4, 2017
    Publication date: June 6, 2019
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takashi MATSUDA, Masahiro KASANO
  • Patent number: 10303231
    Abstract: An input part sets either a charge time zone or a discharge time zone. A first firmware storage part stores first firmware defining all operation contents of a power supply device. An acquiring part acquires second firmware that is firmware for update, and a second firmware storage part stores the second firmware. A controller refers to the charge time zone, the discharge time zone and the like received from the input part to extract a first time zone in which neither the charge time zone nor the discharge time zone is set. The controller preferentially sets timing for updating firmware in the first time zone.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: May 28, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Takashi Matsuda
  • Publication number: 20190137066
    Abstract: A vehicle headlamp includes a plurality of light emitting elements; a plurality of first lenses; and a plurality of second lenses. The first lens includes a first lens entrance and a first lens exit, and is configured to converge light entered the first lens entrance from the light emitting element on the first lens exit. The second lens includes a second lens entrance facing the first lens exit of the first lens and the second lens exit having a projection shape for forming a focal point. The focal point of the second lens is positioned at a side of the second lens ahead the first lens exit of the first lens.
    Type: Application
    Filed: February 2, 2017
    Publication date: May 9, 2019
    Inventors: MASAHIRO KASANO, TAKASHI MATSUDA
  • Patent number: 10270425
    Abstract: An acoustic wave resonator includes: a piezoelectric substrate; and a pair of grating electrodes that is formed on the piezoelectric substrate, one of the pair of grating electrodes including a plurality of first electrode fingers having electric potentials equal to each other, another of the pair of grating electrodes including a plurality of second electrode fingers having electric potentials that differ from the electric potentials of the plurality of first electrode fingers and are equal to each other, two second electrode fingers of the plurality of second electrode fingers being located between at least a pair of adjacent first electrode fingers of the plurality of first electrode fingers, Pg differing from ?/4 where ? represents a wavelength of an acoustic wave excited by the plurality of first electrode fingers and the plurality of second electrode fingers and Pg represents a distance between centers of the two second electrode fingers.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: April 23, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Masafumi Iwaki, Takashi Matsuda, Jun Tsutsumi
  • Patent number: 10270424
    Abstract: An acoustic wave resonator includes: a piezoelectric substrate; an IDT located on the piezoelectric substrate and including comb-shaped electrodes facing each other, each of the comb-shaped electrodes including: electrode fingers exciting an acoustic wave; and a bus bar to which the electrode fingers are connected; a dielectric film located on the piezoelectric substrate in an overlap region, where the electrode fingers of one of the comb-shaped electrodes and the electrode fingers of the other overlap, so as to cover the electrode fingers; and an additional film located on the dielectric film in the overlap region and having a density greater than that of the dielectric film, and of which a film thickness in edge regions corresponding to both edges of the overlap region in an extension direction of the electrode fingers is greater than a film thickness in a central region sandwiched between the edge regions in the overlap region.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: April 23, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Fumiya Matsukura, Kentaro Nakamura, Takashi Matsuda, Jun Tsutsumi, Junichi Hamasaki
  • Patent number: 10260694
    Abstract: A headlight for a vehicle having good heat dissipation performance includes a plurality of lens units, each including a plurality of light emitting devices, and lenses arranged so as to face the respective plural light emitting devices. The plurality of light emitting devices include first light emitting devices arranged on an inner side of the vehicle and having a first light emitting area and second light emitting devices arranged on an outer side of the vehicle having a second light emitting area. A first light distribution emitted from first lens units having the first light emitting devices and a second light distribution emitted from second lens units having the second light emitting devices are included, and the second light emitting area is smaller than the first light emitting area as well as a range of the second light distribution is smaller than a range of the first light distribution.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: April 16, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masahiro Kasano, Takashi Matsuda
  • Patent number: 10218335
    Abstract: A duplexer includes: a first filter connected between a common terminal and a first terminal and including first series and first parallel resonators; a second filter having a passband higher than that of the first filter, connected between the common terminal and a second terminal, and including second series and second parallel resonators; a first chip including the first series and second parallel resonators mounted thereon; a second chip including the first parallel and second series resonators mounted thereon, wherein when GA and HGB represent temperature coefficients of antiresonant frequencies of the first and second series resonators, and HGA and GB represent temperature coefficients of resonant frequencies of the first and second parallel resonators, a magnitude relationship among GA, GB, HGA, and HGB is none of a relationship in which GA (GB) differs from HGA (HGB), and GB (GA) and HGB (HGA) are located between GA (GB) and HGA (HGB).
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: February 26, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Takashi Matsuda, Masumi Kida, Taisei Irieda, Tokihiro Nishihara, Shinji Taniguchi
  • Publication number: 20190046421
    Abstract: A sprayable sunscreen cosmetic contains substantially no ultraviolet ray scattering agents which cause whiteness, and which is transparent immediately after being applied/sprayed, and that has excellent ultraviolet ray protection effect and a good sensation in use. The ultraviolet ray protection effect is not reduced, and the effects improve when in contact with water. A water-in-oil emulsified sunscreen cosmetic comprises: (A) 6 to 40 mass % of an ultraviolet ray absorbing agent; (B) an organically modified clay mineral; (C) an oil phase thickener other than the aforementioned (B); (D) a silicone-based surfactant having an HLB of less than 8; (E) a spherical resin powder; and (F) a volatile silicone oil; wherein a ratio defined as [total amount of ingredient (B) and ingredient (C)]/[total amount of (G) non-volatile liquid oils other than silicone oils] is at least 0.04 and less than 0.68.
    Type: Application
    Filed: October 7, 2016
    Publication date: February 14, 2019
    Applicant: SHISEIDO COMPANY, LTD.
    Inventors: Satoshi YAMAKI, Taichi HARADA, Takashi MATSUDA
  • Patent number: 10203081
    Abstract: A small and thin lighting device with high efficiency and good design and a headlight for a vehicle. A lighting device includes a first lens taking light generated by a light emitting device and emitting the light, and a second lens taking an emitted light from the first lens and emitting the light, in which the second lens is an anamorphic lens in which curvatures are different in a vertical direction and a right and left direction and a center of a lens surface in the vertical direction of the second lens is positioned in an upper direction with respect to an optical axis of the first lens. A headlight for a vehicle including the plural lighting devices is forming a low beam light distribution by superimposing lights from respective lighting devices for irradiation of the center, right and left in a horizontal direction respectively.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: February 12, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Matsuda, Masahiro Kasano
  • Publication number: 20190044379
    Abstract: To provide a power supply system to a two-dimensional communication sheet that can prevent generation of leakage power without lowering a power efficiency, there are included a two-dimensional communication sheet 1 that has an dielectric layer 11, a first conductor layer 12 covering a rear surface of the dielectric layer 11, and a second conductor layer 13 covering a front surface of the dielectric layer 11 and composed of a mesh-shaped wiring pattern; and a power supply port 16 for supplying power to the two-dimensional communication sheet 1, the power supply port 16 having a first power supply plate 163 provided separately at a rear side of the first conductor layer 12, a second power supply plate 164 provided at a position opposite to the first power supply plate 163 separately at a front side of the second conductor layer 13, a first power supply body 161 electrically connected with the first power supply plate 163, and a second power supply body 162 electrically connected with the second power supply pla
    Type: Application
    Filed: February 6, 2017
    Publication date: February 7, 2019
    Applicant: NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY
    Inventors: Bing ZHANG, Takashi MATSUDA, Toshinori KAGAWA, Ryu MIURA
  • Patent number: 10196483
    Abstract: A fluoropolyether-containing polymer-modified silane having formula (1) is provided wherein Rf is a fluorooxyalkyl or fluorooxyalkylene-containing polymer residue, Y is a divalent to hexavalent hydrocarbon group, R and R? are C1-C4 alkyl or phenyl, X and X? are hydroxyl or a hydrolyzable group, n is an integer of 1 to 3, a is an integer of 0 to 3, m is an integer of 1 to 5, and ? is 1 or 2. A surface treating agent comprising the silane has storage stability and cures into a water/oil repellent layer having weatherability.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: February 5, 2019
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Ryusuke Sakoh, Takashi Matsuda, Yuji Yamane
  • Publication number: 20190002229
    Abstract: An image processing apparatus according to the present invention has: an apparatus main body whose external appearance is configured from an upper casing, a lower casing, and a link casing that vertically links the upper casing and the lower casing and that has a paper discharge opening for discharging paper on one side face; a paper discharge portion that is formed as a space between the upper casing and the lower casing and that is to store paper discharged from the paper discharge opening; and an operation panel portion that is disposed in a vertically tiltable manner on a front face of the upper casing. When viewing the apparatus main body from the front side, an open space that allows paper discharged to the paper discharge portion to be viewed is provided between the operation panel portion and the link casing.
    Type: Application
    Filed: September 4, 2018
    Publication date: January 3, 2019
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Masahiro KAWANO, Takashi MATSUDA, Naoki SAITO, Kenji OHTA
  • Publication number: 20180370421
    Abstract: A mounting pedestal on which a heat generating component is disposed is provided. The mounting pedestal includes a substrate which includes a plurality of bending portions at which the substrate is bent in a staircase shape. An insulating layer is disposed on a surface of the substrate. An interconnecting line is disposed on the insulating layer. In the mounting pedestal, the interconnecting line extends across the plurality of bending portions. In each of the plurality of bending portions, a corner radius (R) of a mountain portion is greater than a corner R of a valley portion.
    Type: Application
    Filed: June 21, 2018
    Publication date: December 27, 2018
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomoyuki NAKANO, Takahiro MIYAKE, Yoshihiro KAWAKITA, Takashi MATSUDA, Masahiro KASANO