Patents by Inventor Masao Takahashi

Masao 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: 20060113608
    Abstract: An electron-emitting device includes an emitter section composed of a dielectric material, a lower electrode disposed on the lower side of the emitter section, and an upper electrode disposed on the upper side of the emitter section so as to be opposed to the lower electrode with the emitter section therebetween, electrons being emitted from the emitter section through the upper electrode by the application of a drive voltage between the lower electrode and the upper electrode, wherein the upper electrode is provided with a plurality of through-holes which expose the emitter section and which have an average diameter of 10 nm or more and less than 100 nm, and a peripheral portion of each through-hole facing the emitter section is separated at a predetermined distance from the emitter section.
    Type: Application
    Filed: November 29, 2005
    Publication date: June 1, 2006
    Applicant: NGK Insulators, Ltd.
    Inventors: Iwao Ohwada, Masao Takahashi, Takayoshi Akao, Shuichi Ozawa, Kei Kosaka
  • Publication number: 20060103408
    Abstract: Circuits under electrode terminals and a nonconductor layer of the electrode terminals in semiconductor devices are prevented from being damaged during a test, such as a burn-in test, on the semiconductor devices formed on a wafer. Alignment patterns provided on the semiconductor wafer have detector electrode terminals and conductor electrode terminals. A detector electrode terminal surrounds a conductor electrode terminal separated by a gap from the detector electrode terminals and a portion of the surrounding detector electrode terminal is open.
    Type: Application
    Filed: October 7, 2005
    Publication date: May 18, 2006
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masao Takahashi, Yoshirou Nakata, Tadaaki Mimura, Toshihiko Sakashita, Toshiyuki Fukuda
  • Patent number: 7001354
    Abstract: A perfusion system for off-pump coronary artery bypass is provided in order to make the off-pump coronary artery bypass easier and safer and to restrict the amount of bleeding to a degree for not affecting operations by occluding the vessel in concurrency with the perfusion, including a blood removal portion, a pump, and a perfusion portion for returning blood pumped out by the pump in the form of an injection of the blood in pulses in response to a diastolic phase of the heart.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: February 21, 2006
    Assignees: Nemoto Kyorindo Co., Ltd.
    Inventors: Akira Suzuki, Masao Takahashi, Kazuaki Mizoguchi, Shigeru Nemoto, Taro Saito
  • Patent number: 6998763
    Abstract: A ceramic device has an actuator element which includes a shape-retaining layer, an upper electrode formed on an upper portion of the shape-retaining layer, and a lower electrode formed on a lower portion of the shape-retaining layer. A vibrating section of ceramics supports the actuator element and a fixed section of ceramics vibratingly supports the vibrating section. An electrode material of the lower electrode contacting the vibrating section contains an additive in an amount of 0.01% by weight to 20% by weight. The electrode material contains platinum as a major component, for example. The additive to the electrode material is preferably zirconium oxide, cerium oxide, or titanium oxide.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: February 14, 2006
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukihisa Takeuchi, Tsutomu Nanataki, Koji Kimura, Masao Takahashi
  • Patent number: 6919667
    Abstract: A piezoelectric/electrostrictive film device is provided, including a piezoelectric/electrostrictive layer and at least a pair of electrodes formed on the piezoelectric/electrostrictive layer. A perovskite piezoelectric/electrostrictive material of the piezoelectric/electrostrictive layer contains Pb, and the perovskite piezoelectric/electrostrictive material contains MnO2 in an amount of 0.1 to 0.5% by weight. Specifically, the perovskite piezoelectric/electrostrictive material contains Pb(Mg1/3Nb2/3)O3—PbZrO3—PbTiO3 in which a part of Pb is substituted with Sr.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: July 19, 2005
    Assignee: NGK Insulators, Ltd.
    Inventors: Hirofumi Yamaguchi, Toshikatsu Kashiwaya, Kazuhiro Yamamoto, Masao Takahashi
  • Publication number: 20050149894
    Abstract: An impedance of a power supply wire is calculated based on design data of a semiconductor integrated circuit, a frequency characteristic of the calculated impedance is obtained, and a design of the semiconductor integrated circuit is changed based on the obtained frequency characteristic. As the above-described impedance, an impedance between power supplies that are different in potential such as a power supply and a ground may be calculated, or an impedance between power supplies that are substantially the same in potential such as a power supply and an N-well power supply may be calculated. By a design modification, a wiring method, the number of pads, separation of power supplies, a type of package, a characteristic of an inductance element, a substrate structure, a distance between wires, a decoupling capacitance, a length of a wire, and a characteristic of a resistance element, for example, are changed.
    Type: Application
    Filed: December 30, 2004
    Publication date: July 7, 2005
    Inventors: Kenji Shimazaki, Kazuhiro Sato, Takahiro Ichinomiya, Shozo Hirano, Masao Takahashi, Hiroyuki Tsujikawa, Seijiro Kojima
  • Publication number: 20050114054
    Abstract: Based on design data of a semiconductor integrated circuit, an impedance related to a power supply wire is calculated, and based on the calculated impedance, a frequency characteristic of power supply noise is analyzed. In calculation of an impedance, an impedance between power supplies which are different in potential, e.g., a main power supply and a ground, may be calculated. Alternatively, an impedance between power supplies which are substantially the same in potential, e.g., a main power supply and an N-well power supply, may be calculated. The calculated impedance includes a wire capacitance between power supply wires, a substrate resistance, an impedance of a package connected to the power supply wires, and so on. Thus, it is possible to provide a method for analyzing power supply noise of a semiconductor integrated circuit, which can be executed at an early stage of a design process with a small amount of calculation.
    Type: Application
    Filed: November 16, 2004
    Publication date: May 26, 2005
    Inventors: Kenji Shimazaki, Kazuhiro Sato, Takahiro Ichinomiya, Shozo Hirano, Masao Takahashi, Hiroyuki Tsujikawa, Seijiro Kojima
  • Patent number: 6882089
    Abstract: A piezoelectric/electrostrictive device is provided, including a ceramic substrate having at least one piezoelectric/electrostrictive layer made of a piezoelectric/electrostrictive ceramic composition and at least one pair of electrodes electrically connected to the piezoelectric/electrostrictive layer formed thereon. The piezoelectric/electrostrictive ceramic composition contains a PbMg1/3Nb2/3O3—PbZrO3—PbTiO3 system composition as a major component, wherein part of Pb is substituted with at least one of Sr and La, and contains Ce in an amount of 0.01 to 0.50% by mass in terms of CeO2. The piezoelectric/electrostrictive layer is solidly attached to the substrate directly or via part of the electrodes.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: April 19, 2005
    Assignee: NGK Insulators, Ltd.
    Inventors: Toshikatsu Kashiwaya, Kazuhiro Yamamoto, Masao Takahashi
  • Publication number: 20050047689
    Abstract: A sliding bearing 4 is constructed by an upper split bearing half 8 and a lower split bearing half 9. The upper split bearing half 8 has a sliding surface 8a, in which an oil groove 10 which allows an lubricating oil to flow therein is formed over the entire circumferential extent of the sliding surface 8a. The oil groove extends through a crush relief 8c to be open to a junction area 8b, and the oil groove has a bottom 10a which is formed so that a portion disposed toward the junction area as considered in the circumferential direction of the crush relief is located closer to the center of the upper split bearing half in comparison to a central portion. An ingress in large quantities of foreign particles within the oil groove onto the sliding surface of the sliding bearing and into a connecting rod bearing after passing through a lubricating oil feed passage is suppressed, and an oil leakage through the crush relief is reduced, allowing a lubricating oil pressure to be secured and augmented.
    Type: Application
    Filed: August 19, 2004
    Publication date: March 3, 2005
    Inventors: Masao Yamazaki, Masao Takahashi, Yasuhiro Hikita, Junichi Natsume, Toshimitsu Shiba, Takashi Kikuchi, Tatsuhiro Terada, Takashi Shimura
  • Patent number: 6845301
    Abstract: The present invention relates to a system for protecting and controlling main-circuit components of an electricity transmission substation. The system includes devices for digital data output, protection-and-controlling, component controlling-and-monitoring, and communication. The digital data output devices input analogue AC electric values and output digital data. The protection-and-controlling devices input the data from the digital data output devices, and further control, monitor, and protect the substation main-circuit components. The component controlling-and-monitoring devices receive commands from the protection-and-controlling devices or from the substation controlling-and-monitoring equipment, and further control and monitor the substation main-circuit components. The devices for digital data output, the protection-and-controlling, and component controlling-and-monitoring are disposed near or within their corresponding substation main-circuit components.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: January 18, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koichi Hamamatsu, Tokuo Ito, Hachidai Ito, Yoshito Sameda, Toshiyuki Saida, Noriyoshi Suga, Hiromi Nagasaki, Yuuji Minami, Takashi Nakajima, Shiro Maruyama, Minoru Saito, Tatsuji Tanaka, Masao Takahashi, Setsuo Tamura, Masayuki Kosakada
  • Patent number: 6831749
    Abstract: A depolarizer 11 is inserted between an optical branch unit 2 and a polarization filter 3, a depolarizer 12 and a polarization filter 14 are inserted between an optical phase modulator 5 and a quarter-wave plate 16, and a depolarizer 13 and a polarization filter 15 are inserted between the other branch end of the optical branch unit 4 and a quarter-wave plate 17. The optical branch unit 2 and the optical phase modulator 5 are formed by single mode optical fibers, and single mode optical fibers are used to connect between optical elements, thus providing an arrangement which is inexpensive as a whole.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: December 14, 2004
    Assignee: Japan Aviation Electronics Industry Limited
    Inventors: Aritaka Ohno, Ryuji Usui, Kiyohisa Terai, Masao Takahashi, Kinichi Sasaki
  • Patent number: 6808515
    Abstract: The object of this invention is to provide a multiply connected type liquid waste disposal apparatus to unify the kind of canister bottles used for multiple connection, to provide plural patient hoses for separate use, to enable easy visual recognition of a content capacity even if a liquid waste disposing capacity is increased, and to rapidly solidify an absorbed liquid waste.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: October 26, 2004
    Assignees: Gunma Koike Co., Ltd., Koike Medical Co., Ltd.
    Inventors: Masao Takahashi, Kazuo Koike, Eiichi Takano
  • Patent number: 6783518
    Abstract: The object of this invention of a float for liquid waste disposal apparatus enables the content inside a container to be easily visually recognizable and allows a faster and steadier solidification of an absorbed liquid waste. The connection plates 5c connects the annular member 5a serving as the guide member to the outer peripheral portion of the cup portion 5b retaining the water-absorptive material 6 wherein the annular member 5a is restrained by the inner wall 26 of the lying member L for preventing the float 5 from revolving in the vertical direction. The liquid waste 21 absorbed from the upper portion and into the lying member L flows downward via the flow path structured with the interstitial portion 27 formed between the annular member 5a and the cup portion 5b and the interstitial portion 28 formed between the inner wall 26 of the lying member L and the annular member 5a.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: August 31, 2004
    Assignees: Gunma Koike Co., Ltd., Koike Medical Co., Ltd.
    Inventors: Masao Takahashi, Kazuo Koike, Eiichi Takano, Nobuo Murata, Masashi Suzuki
  • Patent number: 6752624
    Abstract: Soaking apparatus to treat materials which require higher accuracy in soaking and improved cleanliness. The soaking apparatus includes a heat treatment apparatus having walls, a ceiling and a floor, each divided into a plurality of sections, a heater block mounted on each section, a thermal sensor mounted to each heater block, and a thermal controller to control heating of the heater blocks based on a temperature measured by the thermal sensor.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: June 22, 2004
    Assignee: Showa Manufacturing Co., Ltd.
    Inventors: Nobuo Iwatani, Akira Nishio, Masao Takahashi, Masaharu Kusuhara
  • Publication number: 20040062943
    Abstract: The present invention allows both the merits of a metallic housing and those of a synthetic resin structure to be exhibited in electronic devices, domestic electric devices, etc., and achieves high productivity and mass production capability as well as enables a desired configuration and structure to be designed freely. The present invention is useful for achieving a reduction in weight and for attaining increased strength in not only electronic devices and domestic electric devices but also various parts and structures.
    Type: Application
    Filed: July 16, 2003
    Publication date: April 1, 2004
    Inventors: Masanori Naritomi, Naoki Ando, Masao Takahashi, Masao Shiraishi
  • Publication number: 20040045924
    Abstract: A pierceable stopper enhanced in elasticity so that the liquid in a container will not leak even after a hollow needle inserted into the container through the pierceable stopper has been removed therefrom and a method of producing the pierceable stopper are provided. A pierceable part (11) through which a hollow needle is inserted into a container (2) is molded from a thermoplastic synthetic resin elastic material. The pierceable part is heat-treated with heated air at a temperature of from 80 to 120° C. to remove the internal stress. The heat-treated pierceable part (11) is inserted into an injection mold (20, 21). A molten thermoplastic synthetic resin is injected into a cavity (26) corresponding to a stopper body (10), which is defined by the injection mold (20, 21) and the pierceable part (11), to form a pierceable stopper (5).
    Type: Application
    Filed: June 20, 2003
    Publication date: March 11, 2004
    Inventors: Masanori Naritomi, Masao Shiraishi, Masao Takahashi
  • Patent number: 6703257
    Abstract: A process for providing an integrated piezoelectric/electrostrictive film type element with excellent durability, includes a substrate made of a ceramic material composed mainly of completely stabilized or partially stabilized zirconium oxide, and a piezoelectric/electrostrictive operating section integrated onto the ceramic substrate by a film-forming method, the piezoelectric/electrostrictive operating section comprising a lower electrode, a piezoelectric/electrostrictive layer of a lead element-containing composition, and an upper electrode, wherein a heterophase-occurence rate at a surface of the piezoelectric/electrostrictive layer is controlled to a range of 0.1 to 30%.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: March 9, 2004
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukihisa Takeuchi, Tsutomu Nanataki, Koji Kimura, Masao Takahashi
  • Publication number: 20030225357
    Abstract: A perfusion system for off-pump coronary artery bypass is provided in order to make the off-pump coronary artery bypass easier and safer and to restrict the amount of bleeding to a degree for not affecting operations by occluding the vessel in concurrency with the perfusion, including a blood removal portion, a pump, and a perfusion portion for returning blood pumped out by the pump in the form of an injection of the blood in pulses in response to a diastolic phase of the heart.
    Type: Application
    Filed: March 7, 2003
    Publication date: December 4, 2003
    Applicants: Aisin Seiki Kabushiki Kaisha, Nemoto Kyorindo Co., Ltd., Masao Takahashi, Kazuaki Mizoguchi, Taro Saito
    Inventors: Akira Suzuki, Masao Takahashi, Kazuaki Mizoguchi, Shigeru Nemoto, Taro Saito
  • Publication number: 20030175062
    Abstract: A piezoelectric/electrostrictive device comprising, on a ceramic-made substrate, at least one piezoelectric/electrostrictive layer made of a piezoelectric/electrostrictive ceramic composition and at least one pair of electrodes electrically connected to the piezoelectric/electrostrictive layer, characterized in that the piezoelectric/electrostrictive layer is made of a piezoelectric/electrostrictive ceramic composition containing a PbMg1/3Nb2/3O3—PbZrO3—PbTiO3 system composition wherein part of Pb is substituted with at least one kind selected from Sr and La, as a major component and Ce in an amount of 0.01 to 0.50% by mass in terms of CeO2 and that the piezoelectric/electrostrictive layer is solidly attached to the substrate directly or via part of the electrodes.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 18, 2003
    Applicant: NGK Insulators, Ltd.
    Inventors: Toshikatsu Kashiwaya, Kazuhiro Yamamoto, Masao Takahashi
  • Patent number: RE38791
    Abstract: A helically continuous projection 1a is formed around a sliding surface 1A of a sliding bearing 1 at a given pitch p. The surface roughness h of the sliding surface 1A, including the projection 1a, is chosen to be equal to or less than one-half the height H of the projection. This provides a sliding bearing 1 which exhibits an improved running-in performance.
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: September 6, 2005
    Assignee: Taiho Kogyo Co., Ltd.
    Inventors: Makoto Shibata, Masao Takahashi