Patents by Inventor Ryoichi Takayama

Ryoichi Takayama 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: 20200223574
    Abstract: A product processing apparatus that performs packaging or box packing of products is disclosed. The product processing apparatus includes a storage component and a display component. The storage component is configured to store settings relating to the packaging or the box packing of the products. The display component is configured to display adjustment-requiring parts that requires adjustment in the product processing apparatus when changing the settings.
    Type: Application
    Filed: June 7, 2018
    Publication date: July 16, 2020
    Inventors: Yuchuan TONG, Ryoichi SATO, Shinji KOIKE, Motoki TAKAYAMA, Naoki FURUYA
  • Patent number: 10479877
    Abstract: A filler composition comprising fibrous basic magnesium sulfate particles and non-fibrous inorganic micro-particles having an average particle diameter in the range of 0.001 to 0.5 ?m in a ratio by weight in the range of 100:0.001 to 100:50, and a polyolefin resin composition comprising a polyolefin resin, fibrous basic magnesium sulfate particles and non-fibrous inorganic micro-particles having an average particle diameter in the range of 0.001 to 0.5 ?m, in which the polyolefin resin and fibrous basic magnesium sulfate particles are present in a weight ratio of 99:1 to 50:50, and the non-fibrous inorganic micro-particles are present in an amount of 0.001 to 50 weight parts per 100 weight parts of the basic fibrous magnesium sulfate particles and/or in an amount of 0.0002 to 10 weight parts, per 100 weight parts of the resin.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: November 19, 2019
    Assignee: UBE MATERIAL INDUSTRIES, LTD.
    Inventors: Takashi Idemitsu, Shotaro Hida, Tetsuo Takayama, Ryoichi Nomura
  • Patent number: 8035460
    Abstract: A surface acoustic wave device includes a substrate including lithium niobate; a IDT being provided on an upper surface of the substrate and including a plurality of electrode fingers; and a protective film covering the IDT and having an uneven shape on an upper surface thereof. When a pitch width of one pitch of the IDT is p, a width of one of the electrode fingers is p1, a width between the electrode fingers is p2, and a thickness of the IDT is h, following relations are satisfied, p1+p2=p, and h/(2×p)?4.5%. With this configuration, an appropriate reflection characteristic is realized, and the surface acoustic wave device having excellent temperature coefficient of frequency and electrical characteristic can be obtained.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: October 11, 2011
    Assignee: Panasonic Corporation
    Inventors: Hidekazu Nakanishi, Ryoichi Takayama, Yukio Iwasaki, Yosuke Hamaoka, Hiroyuki Nakamura
  • Publication number: 20100164646
    Abstract: A surface acoustic wave device includes a substrate including lithium niobate; a IDT being provided on an upper surface of the substrate and including a plurality of electrode fingers; and a protective film covering the IDT and having an uneven shape on an upper surface thereof. When a pitch width of one pitch of the IDT is p, a width of one of the electrode fingers is p1, a width between the electrode fingers is p2, and a thickness of the IDT is h, following relations are satisfied, p1+p2=p, and h/(2×p)?4.5%. With this configuration, an appropriate reflection characteristic is realized, and the surface acoustic wave device having excellent temperature coefficient of frequency and electrical characteristic can be obtained.
    Type: Application
    Filed: February 14, 2007
    Publication date: July 1, 2010
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Hidekazu Nakanishi, Ryoichi Takayama, Yukio Iwasaki, Yosuke Hamaoka, Hiroyuki Nakamura
  • Publication number: 20090115554
    Abstract: An electronic part, an object of which is to improve temperature characteristics and electrical properties, includes a substrate (1), a comb-type electrode (2) that is disposed on the upper surface of the substrate (1), and a protective film (4) that covers the comb-type electrode (2) and has an uneven shape at its top surface. If the pitch width of one pitch in the uneven shape of the protective film (4) is L, the width of one pitch of a convex portion (4a) of the unevenness in the uneven shape of the protective film (4) is L1, the width of one pitch of a concave portion (4b) thereof is L2, the pitch width of one pitch of the comb-type electrode (2) is p, the width of one of electrode fingers which form the comb-type electrode (2) is p1 and the width between the electrode fingers is p2, then each parameter is set so that the following expressions are satisfied, L1?p1 and L2?p2 (herein, the correlations of L?p, p1+p2=p and L1+L2=L are satisfied).
    Type: Application
    Filed: December 12, 2008
    Publication date: May 7, 2009
    Inventors: Ryoichi Takayama, Hidekazu Nakanishi, Takashi Inoue, Tetsuo Kawasaki, Kouji Hasegawa, Yukio Iwasaki
  • Patent number: 7498898
    Abstract: A plurality of surface acoustic wave resonators including a comb electrode and a grating reflector are coupled on a piezoelectric substrate. Dielectric film is formed on the surface of at least one surface acoustic wave resonator. No dielectric film is formed on the surface of at least one other surface acoustic wave resonator. Thus, a SAW filter where the insertion loss into a pass band is small, the steepness is sufficient, and the band is wide can be obtained.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: March 3, 2009
    Assignee: Panasonic Corporation
    Inventors: Hidekazu Nakanishi, Ryoichi Takayama, Yukio Iwasaki, Hiroyuki Nakamura
  • Patent number: 7478558
    Abstract: In a piezoelectric element, an adhesive layer 12 is provided on a substrate 11, a first electrode layer 14 made of a noble metal containing titanium or titanium oxide is provided on the adhesive layer 12, and an orientation control layer 15 that is preferentially oriented along a (100) or (001) plane is provided on the first electrode layer 14. In the vicinity of a surface of the orientation control layer 15 that is closer to the first electrode layer 14, a (100)- or (001)-oriented region extends over titanium or titanium oxide located on one surface of the first electrode layer 14 that is closer to the orientation control layer 15, and the cross-sectional area of the region in the direction perpendicular to the thickness direction gradually increases in the direction away from the first electrode layer 14 toward the opposite side. Further, a piezoelectric layer 16 that is preferentially oriented along a (001) plane is provided on the orientation control layer 15.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: January 20, 2009
    Assignee: Panasonic Corporation
    Inventors: Eiji Fujii, Hideo Torii, Ryoichi Takayama, Atsushi Tomozawa, Akiko Murata, Taku Hirasawa
  • Patent number: 7185540
    Abstract: In a piezoelectric element 20, a first electrode layer 2 made of an alloy of at least one metal selected from the group consisting of cobalt, nickel, iron, manganese and copper and a noble metal is formed on a silicon substrate 1, and a piezoelectric layer 3 made of a rhombohedral or tetragonal perovskite oxide (e.g., PZT) is formed on the first electrode layer 2 so that the piezoelectric layer 3 is preferentially oriented along the (001) plane.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: March 6, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hideo Torii, Eiji Fujii, Atsushi Tomozawa, Akiko Murata, Ryoichi Takayama, Taku Hirasawa
  • Patent number: 7109828
    Abstract: In a surface acoustic wave (SAW) device, such as a SAW resonator or a SAW filter, loss is minimized and steep characteristics are improved. IDT electrodes and a reflector are provided to a piezoelectric substrate cut out at a cut-angle which allows the substrate to excite a leaky surface acoustic wave (LSAW). The IDT electrodes have a given film thickness and a given pitch “p” of finger-electrodes. A phase velocity of the SAW is reduced to slower than a phase velocity “vb”of a slow shear wave propagating on the piezoelectric substrate, and a resonance frequency “f” satisfies a relation of 2×p?vb/f. This structure allows the use of a Rayleigh surface acoustic wave (RSAW) which does not produce propagation loss, and improving insertion-loss and steep characteristics from those of a conventional SAW device using the LSAW.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: September 19, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ryoichi Takayama, Shunichi Seki, Tetsuo Kawasaki, Hidekazu Nakanishi, Koji Hasegawa
  • Publication number: 20060187272
    Abstract: In a piezoelectric element 20, a first electrode layer 2 made of an alloy of at least one metal selected from the group consisting of cobalt, nickel, iron, manganese and copper and a noble metal is formed on a silicon substrate 1, and a piezoelectric layer 3 made of a rhombohedral or tetragonal perovskite oxide (e.g., PZT) is formed on the first electrode layer 2 so that the piezoelectric layer 3 is preferentially oriented along the (001) plane.
    Type: Application
    Filed: April 21, 2006
    Publication date: August 24, 2006
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hideo Torii, Eiji Fujii, Atsushi Tomozawa, Akiko Murata, Ryoichi Takayama, Taku Hirasawa
  • Patent number: 7083270
    Abstract: In a piezoelectric element 20, a first electrode layer 2 made of an alloy of at least one metal selected from the group consisting of cobalt, nickel, iron, manganese and copper and a noble metal is formed on a silicon substrate 1, and a piezoelectric layer 3 made of a rhombohedral or tetragonal perovskite oxide (e.g., PZT) is formed on the first electrode layer 2 so that the piezoelectric layer 3 is preferentially oriented along the (001) plane.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: August 1, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hideo Torii, Eiji Fujii, Atsushi Tomozawa, Akiko Murata, Ryoichi Takayama, Taku Hirasawa
  • Publication number: 20060146097
    Abstract: In a piezoelectric element, an adhesive layer 12 is provided on a substrate 11, a first electrode layer 14 made of a noble metal containing titanium or titanium oxide is provided on the adhesive layer 12, and an orientation control layer 15 that is preferentially oriented along a (100) or (001) plane is provided on the first electrode layer 14. In the vicinity of a surface of the orientation control layer 15 that is closer to the first electrode layer 14, a (100)- or (001)-oriented region extends over titanium or titanium oxide located on one surface of the first electrode layer 14 that is closer to the orientation control layer 15, and the cross-sectional area of the region in the direction perpendicular to the thickness direction gradually increases in the direction away from the first electrode layer 14 toward the opposite side. Further, a piezoelectric layer 16 that is preferentially oriented along a (001) plane is provided on the orientation control layer 15.
    Type: Application
    Filed: February 24, 2006
    Publication date: July 6, 2006
    Inventors: Eiji Fujii, Hideo Torii, Ryoichi Takayama, Atsushi Tomozawa, Akiko Murata, Taku Hirasawa
  • Patent number: 7033001
    Abstract: In a piezoelectric element, an adhesive layer 12 is provided on a substrate 11, a first electrode layer 14 made of a noble metal containing titanium or titanium oxide is provided on the adhesive layer 12, and an orientation control layer 15 that is preferentially oriented along a (100) or (001) plane is provided on the first electrode layer 14. In the vicinity of a surface of the orientation control layer 15 that is closer to the first electrode layer 14, a (100)- or (001)-oriented region extends over titanium or titanium oxide located on one surface of the first electrode layer 14 that is closer to the orientation control layer 15, and the cross-sectional area of the region in the direction perpendicular to the thickness direction gradually increases in the direction away from the first electrode layer 14 toward the opposite side. Further, a piezoelectric layer 16 that is preferentially oriented along a (001) plane is provided on the orientation control layer 15.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: April 25, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Eiji Fujii, Hideo Torii, Ryoichi Takayama, Atsushi Tomozawa, Akiko Murata, Taku Hirasawa
  • Patent number: 7024738
    Abstract: To manufacture a compact and high-performance thin-film piezoelectric bimorph element at low cost, first and second piezoelectric thin films (2, 3) are formed by sputtering on the both surfaces of a metal thin plate (1) which are opposing relation to each other along the thickness thereof, while the respective states of polarizations of the first and second piezoelectric thin films (2, 3) are controlled. A pair of electrode films (5) are formed on the respective surfaces of the first and second piezoelectric thin films (2, 3) opposite to the metal thin plate (1).
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: April 11, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Satoru Fujii, Isaku Kanno, Ryoichi Takayama, Takeshi Kamada
  • Patent number: 7001014
    Abstract: A piezoelectric thin film can achieve a large piezoelectric displacement. A chemical composition of the piezoelectric thin film is expressed by Pb1+a(ZrxTi1?x)O3+a(0.2?a?0.6 and 0.50?x?0.62). The crystal structure of the piezoelectric thin film is a mixture of a perovskite columnar crystal region (24) having an ionic defect in which a portion of the constitutive elements of an oxygen ion, a titanium ion, and a zirconium ion is missing and a perovskite columnar crystal region (25) of stoichiometric composition having no ionic defect. This configuration allows a residual compressive stress in the crystal to be relaxed by the perovskite columnar crystal region (24) having an ionic defect, thus achieving a large piezoelectric displacement (displacement amount).
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: February 21, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hideo Torii, Takeshi Kamada, Isaku Kanno, Ryoichi Takayama
  • Publication number: 20050280335
    Abstract: A piezoelectric element includes a first electrode layer 14 provided on a substrate 11 and made of a noble metal to which at least one additive selected from the group consisting of Mg, Ca, Sr, Ba, Al and oxides thereof is added, an orientation control layer 15 provided on the first electrode layer 14 and made of a cubic or tetragonal perovskite oxide that is preferentially oriented along a (100) or (001) plane, and a piezoelectric layer 16 provided on the orientation control layer 15 and made of a rhombohedral or tetragonal perovskite oxide that is preferentially oriented along a (001) plane.
    Type: Application
    Filed: August 15, 2005
    Publication date: December 22, 2005
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Atsushi Tomozawa, Eiji Fujii, Hideo Torii, Akiko Murata, Ryoichi Takayama, Taku Hirasawa
  • Patent number: 6969157
    Abstract: A piezoelectric element includes a first electrode layer 14 provided on a substrate 11 and made of a noble metal to which at least one additive selected from the group consisting of Mg, Ca, Sr, Ba, Al and oxides thereof is added, an orientation control layer 15 provided on the first electrode layer 14 and made of a cubic or tetragonal perovskite oxide that is preferentially oriented along a (100) or (001) plane, and a piezoelectric layer 16 provided on the orientation control layer 15 and made of a rhombohedral or tetragonal perovskite oxide that is preferentially oriented along a (001) plane.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: November 29, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Atsushi Tomozawa, Eiji Fujii, Hideo Torii, Akiko Murata, Ryoichi Takayama, Taku Hirasawa
  • Patent number: 6909341
    Abstract: In a surface acoustic wave (SAW) filter including a substrate and an electrode formed on the substrate, the electrode includes a base layer, a first metal layer made of a metal consisting of Al or consisting mainly of Al, and having a given orientation relative to the substrate, a second layer for preventing the first metal layer from migration of Al atoms occurring in vertical to the substrate, and a third layer for adjusting a thickness of the layer. In this SAW filter having an arbitrary layer thickness, the layer hardly causes grain boundary diffusion, and grains of the layer can be made fine for effective resistance to stress. Thus, in this SAW filter, the migration of the Al atoms of the electrode that is associated with the SAW propagation-induced stress imposed on the electrode is inhibited. Accordingly, the filter exhibits excellent resistance against electric power.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: June 21, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ryoichi Takayama, Hidekazu Nakanishi, Tetsuo Kawasaki, Toru Sakuragawa, Yasuhiko Yokota
  • Patent number: 6891449
    Abstract: An antenna duplexer has a power durability to a signal input from an antenna terminal and has stable characteristics. The antenna duplexer includes an input terminal, a transmission filter including a surface acoustic wave (SAW) filter having an input port connected to the input terminal, a phase shifter having an input port connected to an output port of the transmission filter, a reception filter having an input port connected to an output port of the phase shifter, an output terminal connected to the output port of the reception filter, and an antenna terminal connected between the transmission filter and the phase shifter. The transmission filter has a power durability at the output port of the filter, being equal to or larger than a power durability at the input port of the filter.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: May 10, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ryoichi Takayama, Tetsuo Kawasaki, Yuki Satoh, Kozo Murakami, Toru Sakuragawa
  • Patent number: 6886922
    Abstract: In the liquid discharge head for discharging liquid such as ink like the ink jet head, at least a part on a surface of a piezoelectric element on the side of a liquid chamber member (ink chamber member) is composed of a nucleus forming assistance material contained layer containing a material for assisting nucleus forming for growth of plating at the time of forming the liquid chamber member on the surface by means of the electroless plating, and the liquid chamber member is formed on the nucleus forming assistance material contained layer by the electroless plating.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: May 3, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Taku Hirasawa, Akiko Murata, Atsushi Tomozawa, Eiji Fujii, Hideo Torii, Ryoichi Takayama