Patents by Inventor Koji Tsuji
Koji Tsuji 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: 7484410Abstract: Disclosed is a gyro sensor, which comprises a primary base plate (1) and a support base plate (2) which are superimposed on one another. The primary base plate (1) is provided with a driven mass body (11) to be driven in such a manner as to be vibrated in a direction intersecting with a surface of the support base plate (2), and a detection mass body (12) coupled with the driven mass body (11) through a drive spring (13) and adapted to be displaceable in a plane along the support base plate (2). Two detection springs (15) extending in the arranging direction of the driven mass body (11) and the detection mass body (12) are connected, respectively, to opposite side of the detection mass body (12), and the other ends of the detection springs (15) are connected together through a coupling segment (16). A fixing segment (17) provided at a longitudinally intermediate portion of the coupling segment (16) is fixed to the support base plate (2).Type: GrantFiled: March 14, 2005Date of Patent: February 3, 2009Assignee: Panasonic Electric Works Co., Ltd.Inventors: Koji Tsuji, Kazuo Gouda, Masao Kirihara, Youichi Nishijima, Satoshi Hyodo
-
Publication number: 20080243026Abstract: An abdominal impedance measurement apparatus includes a plurality of electrodes for measuring an abdominal impedance of a human subject, and includes an electrode supporting member for supporting the electrodes in such a manner that the electrodes protrude from the electrode supporting member. The electrode supporting member includes a plurality of segments aligned in a direction, the electrodes being respectively mounted on different segments, neighboring segments being connected rotatably with each other. The electrode supporting member further includes rotation-angle restricting parts for restricting relative rotation-angles between neighboring segments.Type: ApplicationFiled: March 26, 2008Publication date: October 2, 2008Inventor: Koji Tsuji
-
Publication number: 20080156095Abstract: A sensor system includes a sensor device (10) and an integrated circuit (20) for driving the device (10). The device (10) includes a sensor body (1) of a silicon-based material, an upper sealing member (2) of a silicon-based material and a lower sealing member (3) of a silicon-based material. The upper sealing member (2) and the lower sealing member (3) are joined together to cooperatively house the body (1) therewithin in an airtight manner. The device (10) and the circuit (20) are formed as a stacked body. The body (1) is electrically connected to a wiring pattern (12) of the circuit (20) through a conductive through-path (4) penetrating the upper sealing member (4) and a mounting electrode (5) provided on an outer surface of the upper sealing member (2). The device (10) is connected to an MID substrate (30) through the circuit (20).Type: ApplicationFiled: March 29, 2005Publication date: July 3, 2008Applicant: MATSUSHITA ELECTRIC WORKS, LTD.Inventors: Koji Tsuji, Yoshiharu Sanagawa, Masao Kirihara, Kazuo Gouda, Youichi Nishijima
-
Publication number: 20080053224Abstract: Disclosed is a gyro sensor, comprises a primary base plate (1) and a support base plate (2) which are superimposed on one another. The primary base plate (1) is provided with a driven mass body (11) to be driven in such a manner as to be vibrated in a direction intersecting with a surface of the support base plate (2), and a detection mass body (12) coupled with the driven mass body (11) through a drive spring (13) and adapted to be displaceable in a plane along the support base plate (2).Type: ApplicationFiled: March 14, 2005Publication date: March 6, 2008Applicant: MATSUSHITA ELECTRIC WORKS, LTD.Inventors: Koji Tsuji, Kazuo Gouda, Masao Kirihara, Youichi Nishijima, Satoshi Hyodo
-
Publication number: 20080038921Abstract: A method of manufacturing a semiconductor device. In this method, a concave portion is formed in one surface in the thickness direction of a primary base plate comprising a semiconductor substrate with a relatively large thickness dimension. Then, through-holes are formed by a reactive-ion etching process using as a mask an opening formed in an oxide film provided on the other surface in the thickness direction of the primary base plate. The opening has a narrow width in a region corresponding to the concave portion and a wide width in the remaining region. Thus, respective times necessary for the wide-width through-hole to penetrate through the primary base plate and necessary for the narrow-width through-hole to reach a bottom surface of the concave portion can be approximately equalized to complete the common etching process of the wide-width through-hole and the narrow-width through-hole approximately simultaneously.Type: ApplicationFiled: March 15, 2005Publication date: February 14, 2008Applicant: MATSUSHITA ELECTRIC WORKS, LTD.Inventors: Kazuo Gouda, Koji Tsuji, Masao Kirihara, Youichi Nishijima
-
Publication number: 20080021349Abstract: An abdomen width determiner determines an abdomen width value of a human subject. A memory stores a correlation between abdomen width values and waist circumferences of human beings. A waist circumference calculator calculates a waist circumference of the human subject on the basis of the abdomen width value determined by the abdomen width determiner and the correlation stored in the memory. The correlation stored in the memory may be expressed by the following regression formula: Y=aX+b where “Y” is a waist circumference of a human being, “X” is an abdomen width value of a human being, and “a” and “b” are constants.Type: ApplicationFiled: July 18, 2007Publication date: January 24, 2008Inventors: Yoshio Sakai, Hirokazu Ono, Koji Tsuji, Yasuhiro Kasahara
-
Patent number: 7232964Abstract: In a load transfer mechanism which transfers load to a load cell that constitutes a Roberval mechanism, a load transfer member has at least an area right above a load cell mounting section in the top surface thereof as a concave surface area formed to be lower than the remaining area of the top surface thereof so that it does not contact a cover member. Thus, if the barycentric position of the load of an object to be weighed placed on the cover member, regardless of whether the load is concentrated load or divided load, the load transfer mechanism can reduce the difference of the influence of deflection of the load transfer member or moment imposed on the load, transfer given load to the load cell through the load transfer member and decrease a span error produced by the load position of an object to be weighed.Type: GrantFiled: April 17, 2006Date of Patent: June 19, 2007Assignee: Tanita CorporationInventors: Koji Tsuji, Mikio Yamashita
-
Publication number: 20060231299Abstract: In a load transfer mechanism which transfers load to a load cell that constitutes a Roberval mechanism, a load transfer member has at least an area right above a load cell mounting section in the top surface thereof as a concave surface area formed to be lower than the remaining area of the top surface thereof so that it does not contact a cover member. Thus, if the barycentric position of the load of an object to be weighed placed on the cover member, regardless of whether the load is concentrated load or divided load, the load transfer mechanism can reduce the difference of the influence of deflection of the load transfer member or moment imposed on the load, transfer given load to the load cell through the load transfer member and decrease a span error produced by the load position of an object to be weighed.Type: ApplicationFiled: April 17, 2006Publication date: October 19, 2006Inventors: Koji Tsuji, Mikio Yamashita
-
Patent number: 5591926Abstract: A silver base electrical contact material is described which contains uniformly in a silver matrix dispersed particles of nickel, nickel oxide, and at least one additive selected from the group consisting of vanadium, manganese, chromium, thallium, titanium, cobalt, and tungsten carbide. The contact material contains 1.3 to 24.8 wt % of nickel, 0.2 to 4.7 wt % of nickel oxide, 0.05 to 3 wt % of the additive, and balance silver. A superior silver base contact material having excellent welding and wear resistances is obtained by adding the metals and the metal carbide to a silver-nickel-nickel oxide contact material.Type: GrantFiled: September 26, 1995Date of Patent: January 7, 1997Assignee: Matsushita Electric Works, Ltd.Inventors: Hayato Inada, Koji Tsuji
-
Patent number: 5338505Abstract: A silver base electrical contact material with superior resistance to arc erosion along with improved wear and welding resistance. The contact material consists essentially of 0.5 to 39.9 wt % of nickel, 0.14 to 7.0 wt % of nickel oxides, and balance silver. The material contains not less than 0.4 wt % of nickel responsible for constituting minute nickel and nickel particles which have a particle size of not more than 1 .mu.m and are dispersed in a silver matrix for strengthening the material to give improved wear and welding resistance. The dispersed minute nickel oxide particles are included to stabilize arcing occurring at the time of opening and closing contacts in such a manner as to anchor one end of an arc substantially at any immediately available point over the entire contact surface as soon as the arcing occurs, thereby preventing the arc end from moving violently across or beyond the contact surface and therefore minimizing arc related damages or arc erosion.Type: GrantFiled: December 28, 1992Date of Patent: August 16, 1994Assignee: Matsushita Electric Works, Ltd.Inventors: Koji Tsuji, Yoshinbou Takegawa, Hayato Inada, Shuji Yamada
-
Patent number: 5198015Abstract: A silver base electrical contact material with superior resistance to arc erosion along with improved wear and welding resistance. The contact material consists essentially of 0.5 to 39.9 wt % of nickel, 0.14 to 7.0 wt % of nickel oxides, and balance silver. The material contains not less than, 0.4 wt % of nickel responsible for constituting minute nickel and nickel particles which have a particle size of not more than 1 .mu.m and are dispersed in a silver matrix for strengthening the material to give improved wear and welding resistance. The dispersed minute nickel oxide particles are included to stabilize arcing occurring at the time of opening and closing contacts in such a manner as to anchor one end of an arc substantially at any immediately available point over the entire contact surface as soon as the arcing occurs, thereby preventing the arc end from moving violently across or beyond the contact surface and therefore minimizing arc related damages or arc erosion.Type: GrantFiled: June 20, 1991Date of Patent: March 30, 1993Assignee: Matsushita Electric Works, Ltd.Inventors: Koji Tsuji, Yoshinobu Takegawa, Hayato Inada, Shuji Yamada
-
Patent number: 5048860Abstract: A vehicle suspension system comprises a wheel carrying member for rotatably carrying a wheel of a vehicle. The wheel carrying member is provided with an extension extending upwardly. A first upper arm member extends in a substantially longitudinal direction of the vehicle and is pivotally connected at one end with an upper end portion of said the extension and at the other end with a vehicle body member. A second upper arm member is arranged downward of the first upper arm member, extending in a substantially transverse direction of the vehicle and pivotally connected at one end with the wheel carrying member and at the other end with the vehicle body member. A lower arm is connected at one end with a lower portion of the wheel carrying member and at the other end with the vehicle body member for restricting at least a longitudinal and transverse movement of the wheel carrying member. A desirable camber and caster angle control can be accomplished.Type: GrantFiled: January 10, 1990Date of Patent: September 17, 1991Assignee: Mazda Motor CorporationInventors: Seita Kanai, Koji Tsuji, Toshiro Kondo, Takeshi Edahiro
-
Patent number: 5022932Abstract: An electrically conductive composite material is formed by dispersing in a matrix metal the other metal which is not solid soluble with the matrix metal. The other metal is finely divided to an extent of not excessively lowering the conductivity and is mixed in the matrix metal in a particle amount with which respective particles keep a mutual distance effective to strengthen the composite material, whereby the material is sufficiently improved in the mechanical strength and wear resistance and remarkably reduced in the high temperature deformation. Such conductive composite material can be obtained through a melt atomization.Type: GrantFiled: January 22, 1990Date of Patent: June 11, 1991Assignees: Matsushita Electric Works, Ltd., Unitika, Ltd.Inventors: Shuji Yamada, Koji Tsuji, Yoshinobu Takegawa, Akira Tanimura, Akira Menju, Nobuyoshi Yano
-
Patent number: 5001446Abstract: A shape memory alloy consists of a three element alloy of nickel-titanium-copper which is formed as being subjected to a cold working and to a heat treatment at a temperature below recrystallization point of the alloy for storing the shape, the alloy being thereby improved in operation stability and reliability even after repetitive operation and made wider in environmental temperature range for use therein of the alloy.Type: GrantFiled: July 21, 1989Date of Patent: March 19, 1991Assignee: Matsushita Electric Works, Ltd.Inventors: Koji Tsuji, Yoshinobu Takegawa
-
Patent number: 4911769Abstract: An electrically conductive composite material is formed by dispersing in a matrix metal another metal which is insoluble or slightly soluble with the matrix metal. The other metal is finely divided to an extent of not excessively lowering the conductivity and is mixed in the matrix metal in a particle amount such that respective particles keep a mutual distance effective to strengthen the composite material. The material is thereby sufficiently improved in the mechanical strength and wear resistance and remarkably reduced in high temperature deformation. Such conductive composite material can be obtained through a melt atomization.Type: GrantFiled: March 22, 1988Date of Patent: March 27, 1990Assignees: Matsushita Electric Works, Ltd., Unitika, Ltd.Inventors: Shuji Yamada, Koji Tsuji, Yoshinobu Takegawa, Akira Tanimura, Akira Menju, Nobuyoshi Yano
-
Patent number: 4908158Abstract: An electrical contact material consists of Ag in which a metallic oxide is produced and dispersed through an internal oxidation and containing as metallic elements Cd, Mn and Al. With this contact material of this composition, there can be shown a high anti-welding property and a stably low contact resistance.Type: GrantFiled: February 13, 1989Date of Patent: March 13, 1990Assignee: Matsushita Electric Works, Ltd.Inventors: Koji Tsuji, Shuji Yamada, Yoshinobu Takegawa
-
Patent number: 4502899Abstract: A joint material that is improved in arc-proof characteristic, fusion-proof characteristic, and consumption-proof characteristic. The joint material contains silver, lithium oxide and one selected from the group consisting of aluminium oxide, calcium oxide, magnesium oxide, and silicon oxide. Furthermore, one selected from the group consisting of iron, nickel and cobalt may be contained as an additional component in the joint material. Such joint material is produced by a method of oxidizing the silver alloy containing lithium and one selected from the group consisting of aluminium, calcium, magnesium, and silicon, with the composition ratio of 0.1-3 wt % for lithium, and 0.01-1 wt % for aluminium, calcium, magnesium, and silicon, respectively, in quantitive conversion to metal or by a method of oxidizing the silver alloy containing, in addition to the components mentioned above, one selected from the group consisting of iron, nickel, and cobalt, with the composition ratio of 0.05-1 wt %.Type: GrantFiled: June 22, 1982Date of Patent: March 5, 1985Assignee: Matsushita Electric Works, Ltd.Inventors: Koji Tsuji, Shuji Yamada