Patents Assigned to Sanyo Electronics Co., Ltd.
  • Patent number: 7399999
    Abstract: In a conventional semiconductor device, there was a problem that, in a guard ring region, a shape of a depletion layer is distorted and stable withstand voltage characteristics cannot be obtained. In a semiconductor device of the present invention, a thermal oxide film in an actual operation region and a thermal oxide film in a guard ring region are formed in the same process. Thereafter, the thermal oxide film is once removed and is formed again. Thus, a film thickness of the thermal oxide film on the upper surface of the guard ring region is set to, for example, about 8000 to 10000 ?. Accordingly, a CVD oxide film including moving ions is formed in a position distant from a surface of an epitaxial layer. Consequently, distortion of a depletion layer, which is influenced by the moving ions, is suppressed and desired withstand voltage characteristics can be maintained.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: July 15, 2008
    Assignees: Sanyo Electric Co., Ltd., Gifu Sanyo Electronics Co., Ltd.
    Inventors: Tetsuya Yoshida, Tetsuya Okada, Hiroaki Saito, Shigeyuki Murai, Kikuo Okada
  • Publication number: 20080117363
    Abstract: Two liquid crystal panels are laid one over the other in a state that each of the liquid crystal panels is oriented in a forward direction. At least one spacer is detachably provided between the two liquid crystal panels. The liquid crystal panels are positioned relative to each other by a plurality of through-holes arrayed in a thickness direction of the spacer by an interval corresponding to the thickness of the spacer, and a projection engageable in one of the through-holes.
    Type: Application
    Filed: November 20, 2007
    Publication date: May 22, 2008
    Applicants: SANYO ELECTRONIC CO., LTD., SANYO ELECTRIC SYSTEM SOLUTIONS CO., LTD.
    Inventors: Tsutomu Fujita, Shigeru Yoshida, Tomoyuki Ono, Yutaka Sakaida
  • Publication number: 20080048523
    Abstract: Fundamental waveform data transferred through a serial interface is stored in a register. A fundamental waveform generation circuit uses the data to generate a fundamental waveform. A selector is capable of providing fundamental waveform data stored in a fixed memory to the register to replace the fundamental waveform data provided through the serial interface. An initial counter provides a low level signal to an exclusive OR gate until its count value reaches a first predetermined value. A direction control signal M/I is provided to the exclusive OR gate from an external source and the direction control signal M/I at high or low level inverts a direction control signal to be provided to a direction selector.
    Type: Application
    Filed: July 25, 2007
    Publication date: February 28, 2008
    Applicants: SANYO ELECTRONIC CO., LTD., SANYO Semiconductor Co., Ltd.
    Inventors: Takaaki Ishii, Yasuyuki Ueshima
  • Patent number: 7320916
    Abstract: When Ti as a barrier metal layer is brought into contact with a diffusion region of boron provided on a surface of a silicon substrate, there is a problem that boron is absorbed by titanium silicide, and contact resistance is increased. Although there is a method of additionally implanting boron whose amount is equal to the amount of boron absorbed by titanium silicide, there has been a problem that when boron is additionally implanted into, for example, a source region in a p-channel type, the additionally added boron is diffused deeply at the diffusion step, and characteristics are deteriorated. According to the invention, after formation of an element region, boron is additionally implanted into the whole surface at a dosage of about 10% of an element region, and is activated in the vicinity of a surface of a silicon substrate by an alloying process of a barrier metal layer.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: January 22, 2008
    Assignees: Sanyo Electric Co., Ltd., Gifu Sanyo Electronics Co., Ltd.
    Inventors: Hirotoshi Kubo, Yasuhiro Igarashi, Masahiro Shibuya
  • Publication number: 20070273344
    Abstract: The invention provides an oscillator circuit that reduces the dependence of an oscillation frequency on a power supply voltage. When a first charging and discharging circuit completes its discharge, a terminal voltage of a first capacitor of the first charging and discharging circuit is initialized to a power supply voltage and simultaneously a second charging and discharging circuit starts its discharge. Then, when the second charging and discharging circuit completes its discharge, a terminal voltage of a second capacitor of the second charging and discharging circuit is initialized to the power supply voltage and simultaneously the first charging and discharging circuit starts its discharge. The first and second charging and discharging circuits alternately repeat the initialization and the discharge, and the discharge is always started from the power supply voltage.
    Type: Application
    Filed: May 17, 2007
    Publication date: November 29, 2007
    Applicant: SANYO ELECTRONIC CO., LTD.
    Inventor: Yoshinobu Nishiyama
  • Patent number: 7300591
    Abstract: There is here disclosed a wastewater treating technique for treating nitrogen compounds in a for-treatment wastewater by an electrochemical technique, wherein at least portions of a pair of electrodes is immersed in the for-treatment wastewater; a material of one electrode constituting an anode is an insoluble conductor; and a material of the other electrode constituting a cathode is an element in the group VIII of the periodic table, a conductor containing the element in the group VIII, or a conductor covered with the element in the same group or the conductor containing the element in the same group.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: November 27, 2007
    Assignee: Sanyo Electronic Co., Ltd.
    Inventors: Mineo Ikematsu, Masahiro Iseki, Daizo Takaoka
  • Publication number: 20070222952
    Abstract: A projection type video display for displaying a video by casting light that is emitted from a lamp (1) serving as a light source and modulated on the basis of a video signal, has lamp cooling means (3) for cooling the lamp 1. The video display comprises: detection means (lamp drive circuit 2) for detecting the startup status (lamp voltage information) of the lamp in a startup operation: and control means (microcomputer 4) for controlling the lamp cooling means (3) in accordance with the startup status detected by the detection means. This arrangement can shorten time required for the execution of the startup operation of the lamp.
    Type: Application
    Filed: March 19, 2007
    Publication date: September 27, 2007
    Applicant: SANYO ELECTRONIC CO., LTD.
    Inventor: Shinichi SHIOTSU
  • Publication number: 20070205426
    Abstract: A semiconductor light-emitting device includes a semiconductor light-emitting element and a lead-out electrode. The semiconductor light-emitting element has a light-emitting surface of polygonal shape and an electrode formed on the light-emitting surface. The lead-out electrode is connected to the electrode. In the semiconductor light-emitting device, the electrode is formed along at least two sides of the light-emitting surface. In addition, the lead-out electrode is formed on the electrode, and includes an opening portion which opens toward an upper side of the light-emitting surface.
    Type: Application
    Filed: January 30, 2007
    Publication date: September 6, 2007
    Applicant: Sanyo Electronic Co., Ltd.
    Inventors: Kyoji Inoshita, Yasumitsu Kunoh, Saburo Nakashima, Tatsuya Kunisato, Takenori Goto, Masayuki Hata
  • Publication number: 20070190398
    Abstract: A fuel cell that operates at high temperature under non-humid conditions using an electrolyte membrane prepared by impregnating a basic polymer with an acid and a method of producing an electrode for a fuel cell, the fuel cell includes a catalyst layer electrode that can prevent the inhibition of gas diffusion due to generated water and the inhibition of gas diffusion due to an electrode catalyst being covered with an acid that leaks from the electrolyte membrane impregnated with the acid. The electrode includes a catalyst layer including a platinum-containing catalyst, a basic polymer, and a hydrophobic binder.
    Type: Application
    Filed: February 15, 2006
    Publication date: August 16, 2007
    Applicants: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd., Sanyo Electronic Co., Ltd.
    Inventors: Atsuo Sonai, Masaya Yano, Katsuyuki Tabata, Kunihino Nakato
  • Patent number: 7237909
    Abstract: A LED light source is formed of a plurality of LEDs (light-emitting diodes). Primary optical axes of respective LEDs are set to be perpendicular to the plane surface (LED arranging plane surface). A first LED light source emits a light in red, a second LED light source emits a light in green, and a third LED light source emits a light in blue. An optical member has a first dichroic mirror portion and a second dichroic mirror portion alternately arranged, and the mirror potions inclined and arranged so as to form a saw-tooth appearance. Both the first dichroic mirror portion and the second dichroic mirror portion are designed to transmit the light in blue, and reflect lights in other colors.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: July 3, 2007
    Assignee: Sanyo Electronic Co., Ltd.
    Inventors: Yoshihiro Yokote, Takashi Ikeda, Hideyuki Kanayama
  • Publication number: 20070149700
    Abstract: An organic-inorganic composite forming material which contains an organometallic polymer having an -M-O-M- bond (M denotes a metal atom), an acrylic monomer or oligomer having a hydrophilic group and inorganic particles. Preferably, the organometallic polymer has Si in the place of M and is obtained via hydrolysis and polycondensation of trialkoxysilane having a photo- or thermally-polymerizable group and dialkoxysilane having a phenyl group.
    Type: Application
    Filed: December 12, 2006
    Publication date: June 28, 2007
    Applicant: SANYO ELECTRONIC CO., LTD.
    Inventors: Nobuhiko Hayashi, Mitsuaki Matsumoto, Keiichi Kuramoto, Masaya Nakai
  • Patent number: 7226693
    Abstract: A method for producing a cadmium negative electrode for alkaline batteries according to the present invention comprises a step of obtaining a cadmium active-substance impregnated electrode plate by impregnating said electrode substrate with a cadmium active substance; and a step of adding polyethylene glycol for forming a polyethylene glycol coating on the surface of said cadmium negative electrode or on the surface of said active substance by coating or impregnating said active-substance impregnated electrode with polyethylene glycol.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: June 5, 2007
    Assignee: Sanyo Electronic Co., Ltd.
    Inventors: Kei Tomihara, Masahiro Hosoda
  • Patent number: 7215314
    Abstract: A signal line drive circuit and a scanning line drive circuit are capable of being driven bidirectionally. A display apparatus includes a plurality of signal paths each of which transmit a signal outputted from a final-stage circuit thereof when the signal line circuit and/or the scanning line circuit is driven in a forward or reverse direction, and output paths formed by connecting the plurality of signal paths. There are provided a buffer unit and a switching element in each of the plurality of signal paths, and there is provided a buffer unit in each output path. Each of the switching elements in the plurality of signal paths is turned on according to a drive direction in the signal line drive circuit and/or the scanning line drive circuit, and then a target signal is selected and outputted to the output paths.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: May 8, 2007
    Assignee: Sanyo Electronic Co., Ltd
    Inventors: Yukihiro Noguchi, Junka Kaya
  • Publication number: 20070029567
    Abstract: A method of manufacturing an element having a microstructure of an excellent grating groove pattern or the like is obtained. This method of manufacturing an element having a microstructure comprises steps of forming a metal layer on a substrate, forming a dot column of concave portions on the surface of the metal layer and anodically oxidizing the surface of the metal layer formed with the dot column of concave portions while opposing this surface to a cathode surface thereby forming a metal oxide film having a grating groove pattern. When the interval between the concave portions of the dot column is reduced, therefore, a linear grating groove pattern having a large depth with a uniform groove width along the depth direction is easily formed in a self-organized manner.
    Type: Application
    Filed: October 10, 2006
    Publication date: February 8, 2007
    Applicant: SANYO ELECTRONIC CO., LTD.
    Inventors: Kazushi Mori, Mitsuaki Matsumoto, Koji Tominaga, Atsushi Tajiri, Koutarou Furusawa
  • Publication number: 20070013299
    Abstract: A display capable of preventing an emission layer from deterioration resulting from temperature rise of an electrode also when the same is increased in size and easily connectable with an external current source also when the same is connected with the external current source on a single portion is provided. This display comprises a first electrode formed on a substrate, an emission layer formed on the first electrode, a second electrode formed on the emission layer, a peripheral electrode, arranged to enclose the outer periphery of the second electrode and connected with at least three edges of the outer periphery of the second electrode, having a smaller sheet resistance value than the second electrode, and a current source connection terminal connected to the outer periphery of the peripheral electrode. Thus, current readily flows from the second electrode toward the peripheral electrode, while the current can be dispersedly fed along three or four directions.
    Type: Application
    Filed: September 25, 2006
    Publication date: January 18, 2007
    Applicant: SANYO ELECTRONIC CO., LTD.
    Inventors: Yuji Hamada, Tsuyoshi Tsujioka, Noriyuki Matsusue
  • Publication number: 20060279447
    Abstract: The present invention provides a widely general-purpose A/D converting device. The A/D converting device comprises multiple signal conversion units each of which include: an A/D converter for converting an input analog signal into a digital signal with a predetermined number of bits; a D/A converter for converting the output from the A/D converter into an analog signal; a subtracter for subtracting the output signal from the D/A converter, from the input analog signal; and an amplifier for amplifying the output signal from the subtracter. The A/D converting device has a configuration wherein the signal conversion units are arrayed in multiple rows and columns. This allows the user to realize an A/D converting device having various types and levels of performance by making various combinations of the signal conversion units without change of the layout of the signal conversion units.
    Type: Application
    Filed: August 21, 2006
    Publication date: December 14, 2006
    Applicant: SANYO ELECTRONIC CO., LTD.
    Inventors: Atsushi Wada, Kuniyuki Tani, Shigeto Kobayashi
  • Patent number: 6943517
    Abstract: A single-phase motor driving circuit includes a controller for outputting a control signal to drive a single-phase motor in a period in which a saw-tooth voltage of a predetermined cycle is larger than a duty setting voltage based on a result of comparing a detected temperature voltage changed based on a temperature detected by a temperature detecting device with a starting duty setting voltage increased with time while a voltage smaller than the detected temperature voltage at the time of starting the single-phase motor is set as an initial value. The controller sets the duty setting voltage as the starting duty setting voltage when the result of the comparison shows that the starting duty setting voltage is smaller than the detected temperature voltage, and the duty setting voltage as the detected temperature voltage when the starting duty setting voltage is larger than the detected temperature voltage.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: September 13, 2005
    Assignee: Sanyo Electronic Co., Ltd.
    Inventors: Tetsuya Yoshitomi, Yasuyuki Ueshima
  • Publication number: 20050133814
    Abstract: In a conventional semiconductor device, there was a problem that, in a guard ring region, a shape of a depletion layer is distorted and stable withstand voltage characteristics cannot be obtained. In a semiconductor device of the present invention, a thermal oxide film in an actual operation region and a thermal oxide film in a guard ring region are formed in the same process. Thereafter, the thermal oxide film is once removed and is formed again. Thus, a film thickness of the thermal oxide film on the upper surface of the guard ring region is set to, for example, about 8000 to 10000 ?. Accordingly, a CVD oxide film including moving ions is formed in a position distant from a surface of an epitaxial layer. Consequently, distortion of a depletion layer, which is influenced by the moving ions, is suppressed and desired withstand voltage characteristics can be maintained.
    Type: Application
    Filed: October 6, 2004
    Publication date: June 23, 2005
    Applicants: Sanyo Electric Co., Ltd., Gifu SANYO Electronics Co., Ltd.
    Inventors: Tetsuya Yoshida, Tetsuya Okada, Hiroaki Saito, Shigeyuki Murai, Kikuo Okada
  • Publication number: 20050136672
    Abstract: The present invention aims to provide an etching solution composition which enables to etch a metal film in a controllable manner, form a desired definite tapered shape, and obtain a smooth surface without causing etching solution exudation trace. Said problems have been solved by the present invention, which is an etching solution composition for etching metal films containing one or more surfactants selected from the group consisting of alkyl sulfate or perfluoroalkenyl phenyl ether sulfonic acid and the salts thereof.
    Type: Application
    Filed: December 2, 2004
    Publication date: June 23, 2005
    Applicants: Kanto Kagaku Kabushiki Kaisha, Sanyo Electric Co., Ltd., Niigata Sanyo Electronic Co., Ltd.
    Inventors: Kazuhiro Fujikawa, Tsuguhiro Tago
  • Publication number: 20050116283
    Abstract: In conventional semiconductor devices, there observed a problem that cells on the devices may not function uniformly because of voltage drop in a main wiring layer due to a uniform and narrow width of the main wiring layer through which a main current flows. In a semiconductor device of the present invention, a width of one end of a main wire for carrying the main current is formed wider than a width of another end of the main wire. An overall width of the main wire is formed so as to be gradually narrowed from the one end to the another end. In this way, it is possible to reduce a difference in drive voltages between a cell located in the vicinity of an electrode pad for carrying the main current and a cell located in a remote position. Resultantly, it is possible to suppress a voltage drop in the main wire and to achieve uniform operations of cells in an element.
    Type: Application
    Filed: October 20, 2004
    Publication date: June 2, 2005
    Applicants: Sanyo Electric Co., Ltd., Gifu SANYO Electronics Co., Ltd.
    Inventors: Tetsuya Yoshida, Tetsuya Okada, Hiroaki Saito, Shigeyuki Murai, Kikuo Okada