Patents by Inventor Mitsuhide Kato
Mitsuhide Kato 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).
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Patent number: 9839135Abstract: A method of producing electronic components each including a substrate-type terminal and a device connected to the substrate-type terminal including a substrate body with first and second principal surfaces opposite to each other and an electrode configured to be connected to the device on the first principal surface, wherein the device is disposed on the first principal surface, includes forming grooves in a substrate from one of the first and second principal surfaces of the substrate such that the substrate is divided into the substrate-type terminals, the grooves each having a depth less than a thickness of the substrate, cutting the substrate from another principal surface opposite to the principal surface of the substrate body such that the grooves penetrate through the substrate in a thickness direction thereof, and mounting the device on each of the first principal surfaces.Type: GrantFiled: July 16, 2014Date of Patent: December 5, 2017Assignee: Murata Manufacturing Co., Ltd.Inventors: Kazuto Ogawa, Takashi Watanabe, Junya Shimakawa, Mitsuhide Kato
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Publication number: 20150026972Abstract: A method of producing electronic components each including a substrate-type terminal and a device connected to the substrate-type terminal including a substrate body with first and second principal surfaces opposite to each other and an electrode configured to be connected to the device on the first principal surface, wherein the device is disposed on the first principal surface, includes forming grooves in a substrate from one of the first and second principal surfaces of the substrate such that the substrate is divided into the substrate-type terminals, the grooves each having a depth less than a thickness of the substrate, cutting the substrate from another principal surface opposite to the principal surface of the substrate body such that the grooves penetrate through the substrate in a thickness direction thereof, and mounting the device on each of the first principal surfaces.Type: ApplicationFiled: July 16, 2014Publication date: January 29, 2015Inventors: Kazuto OGAWA, Takashi WATANABE, Junya SHIMAKAWA, Mitsuhide KATO
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Patent number: 7391284Abstract: A high-frequency switch includes a transmission terminal, an antenna terminal, a reception terminal, and a voltage-control terminal; a first diode, the cathode thereof being electrically connected to the transmission terminal, and the anode being electrically connected to the antenna terminal; a first transmission line, electrically connected between the antenna terminal and the reception terminal; a second diode, the cathode thereof being electrically connected to the reception terminal, and the anode being electrically connected to the voltage-control terminal; a second transmission line, one end thereof being electrically connected to the transmission terminal, and the other end being connected to ground; and a capacitor, electrically connected between the voltage-control terminal and ground. The above high-frequency switch can be miniaturized and has superior performance.Type: GrantFiled: January 12, 2005Date of Patent: June 24, 2008Assignee: Murata Manufacturing Co., Ltd.Inventor: Mitsuhide Kato
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Patent number: 7245505Abstract: A laminated electronic component includes a laminated block in which a plurality of electrically insulating layers are laminated. An external conductor film is disposed on a surface of the laminated block. An additional conductor film which is at the same potential as the external conductor film is arranged such that it faces the external conductor film with an insulating layer disposed therebetween. The additional conductor film and the external conductor film are electrically connected to each other through a via-hole conductor so that they are at the same potential.Type: GrantFiled: August 5, 2003Date of Patent: July 17, 2007Assignee: Murata Manufacturing Co., Ltd.Inventors: Mitsuhide Kato, Yoshikazu Chigodo, Keiji Ogawa
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Patent number: 7151321Abstract: A laminated electronic component includes a laminate having first and second major surfaces. Four predetermined indication locations are provided on the first major surface. One or more via-hole conductors are arranged at corresponding one or more of the indication locations. The locations and the number of indicating via-hole conductors allows for identification of information regarding the laminated electronic component. Each indicating via-hole conductor is exposed at the first major surface, does not reach the second major surface, and is electrically isolated from wiring conductors built into the laminate.Type: GrantFiled: June 4, 2004Date of Patent: December 19, 2006Assignee: Murata Manufacturing Co., Ltd.Inventors: Hiromichi Kitajima, Keiji Ogawa, Mitsuhide Kato
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Patent number: 7126057Abstract: An integrated electronic component includes a ceramic substrate incorporating circuit elements and/or having circuit elements mounted thereon, and a metal case mounted on the ceramic substrate. Notches are formed in substrate-facing segments of the metal case at the positions opposing the corners of the top surface of the ceramic substrate. The notches have a tapered shape having obtuse angles with respect to the top surface of the substrate. The notches may have a substantially circular arc shape. The substrate-facing segments having the notches are seamlessly connected to side segments of the metal case, bent in the vicinity of the notches, and supported by the bent portions in a cantilevered fashion.Type: GrantFiled: February 10, 2004Date of Patent: October 24, 2006Assignee: Murata Manufacturing Co., Ltd.Inventors: Keiji Ogawa, Mitsuhide Kato, Yoshinori Yamada
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Publication number: 20050122184Abstract: A high-frequency switch includes a transmission terminal, an antenna terminal, a reception terminal, and a voltage-control terminal; a first diode, the cathode thereof being electrically connected to the transmission terminal, and the anode being electrically connected to the antenna terminal; a first transmission line, electrically connected between the antenna terminal and the reception terminal; a second diode, the cathode thereof being electrically connected to the reception terminal, and the anode being electrically connected to the voltage-control terminal; a second transmission line, one end thereof being electrically connected to the transmission terminal, and the other end being connected to ground; and a capacitor, electrically connected between the voltage-control terminal and ground. The above high-frequency switch can be miniaturized and has superior performance.Type: ApplicationFiled: January 12, 2005Publication date: June 9, 2005Applicant: Murata Manufacturing Co., Ltd.Inventor: Mitsuhide Kato
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Patent number: 6897738Abstract: A high-frequency switch includes a transmission terminal, an antenna terminal, a reception terminal, and a voltage-control terminal; a first diode, the cathode thereof being electrically connected to the transmission terminal, and the anode being electrically connected to the antenna terminal; a first transmission line, electrically connected between the antenna terminal and the reception terminal; a second diode, the cathode thereof being electrically connected to the reception terminal, and the anode being electrically connected to the voltage-control terminal; a second transmission line, one end thereof being electrically connected to the transmission terminal, and the other end being connected to ground; and a capacitor, electrically connected between the voltage-control terminal and ground. The above high-frequency switch can be miniaturized and has superior performance.Type: GrantFiled: April 28, 2003Date of Patent: May 24, 2005Assignee: Murata Manufacturing Co., Ltd.Inventor: Mitsuhide Kato
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Publication number: 20040256714Abstract: A laminated electronic component includes a laminate having first and second major surfaces. Four predetermined indication locations are provided on the first major surface. One or more via-hole conductors are arranged at corresponding one or more of the indication locations. The locations and the number of indicating via-hole conductors allows for identification of information regarding the laminated electronic component. Each indicating via-hole conductor is exposed at the first major surface, does not reach the second major surface, and is electrically isolated from wiring conductors built into the laminate.Type: ApplicationFiled: June 4, 2004Publication date: December 23, 2004Applicant: Murata Manufacturing Co., Ltd.Inventors: Hiromichi Kitajima, Keiji Ogawa, Mitsuhide Kato
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Patent number: 6826053Abstract: An electronic device includes a wiring substrate, an electronic component mounted on the wiring substrate by soldering, and a case fixed to the wiring substrate so as to cover the electronic component. The case is fixed to the wiring substrate via soldering, and the case and the electronic component are adhered to each other with an adhesive resin supplied through an opening provided in the upper surface of the case. The adhesive resin is applied so as not to contact the wiring substrate such that interface separation does not occur between the adhesive resin and the wiring substrate even when the solder for mounting the electronic component on the wiring substrate is melted and expanded in a solder reflow process. As a result, the generation of short circuiting between terminal electrodes of the electronic component, which is caused by the solder flowing in the portion of the interface separation, is prevented.Type: GrantFiled: April 5, 2003Date of Patent: November 30, 2004Assignee: Murata Manufacturing Co., LTDInventors: Mitsuhide Kato, Koji Tanaka, Tetsuo Taniguchi
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Publication number: 20040233647Abstract: An integrated electronic component includes a ceramic substrate incorporating circuit elements and/or having circuit elements mounted thereon, and a metal case mounted on the ceramic substrate. Notches are formed in substrate-facing segments of the metal case at the positions opposing the corners of the top surface of the ceramic substrate. The notches have a tapered shape having obtuse angles with respect to the top surface of the substrate. The notches may have a substantially circular arc shape. The substrate-facing segments having the notches are seamlessly connected to side segments of the metal case, bent in the vicinity of the notches, and supported by the bent portions in a cantilevered fashion.Type: ApplicationFiled: February 10, 2004Publication date: November 25, 2004Applicant: Murata Manufacturing Co.Inventors: Keiji Ogawa, Mitsuhide Kato, Yoshinori Yamada
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Publication number: 20040043190Abstract: A laminated electronic component includes a laminated block in which a plurality of electrically insulating layers are laminated. An external conductor film is disposed on a surface of the laminated block. An additional conductor film which is at the same potential as the external conductor film is arranged such that it faces the external conductor film with an insulating layer disposed therebetween. The additional conductor film and the external conductor film are electrically connected to each other through a via-hole conductor so that they are at the same potential.Type: ApplicationFiled: August 5, 2003Publication date: March 4, 2004Applicant: Murata Manufacturing Co., Ltd.Inventors: Mitsuhide Kato, Yoshikazu Chigodo, Keiji Ogawa
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Publication number: 20030206079Abstract: A high-frequency switch includes a transmission terminal, an antenna terminal, a reception terminal, and a voltage-control terminal; a first diode, the cathode thereof being electrically connected to the transmission terminal, and the anode being electrically connected to the antenna terminal; a first transmission line, electrically connected between the antenna terminal and the reception terminal; a second diode, the cathode thereof being electrically connected to the reception terminal, and the anode being electrically connected to the voltage-control terminal; a second transmission line, one end thereof being electrically connected to the transmission terminal, and the other end being connected to ground; and a capacitor, electrically connected between the voltage-control terminal and ground. The above high-frequency switch can be miniaturized and has superior performance.Type: ApplicationFiled: April 28, 2003Publication date: November 6, 2003Applicant: Murata Manufacturing Co., Ltd.Inventor: Mitsuhide Kato
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Patent number: 6642812Abstract: A small high frequency circuit component has very small variations in stray capacitance generated between an inductor electrode pattern and a capacitor electrode pattern. As a result, the variations in the characteristics thereof are also small. The inductor electrode pattern is overlaid with the capacitor electrode pattern in a plan view. That is, when viewed from the lamination direction, the projection of the inductor electrode pattern onto the capacitor electrode pattern is included within the capacitor electrode pattern. More particularly, outer dimensions W1, L1, D1 of the inductor electrode pattern and corresponding outer dimensions W2, L2, D2 of the capacitor electrode pattern satisfy the following conditions, respectively: W2=W1+&Dgr;, where 0.1 mm≦&Dgr;≦1.0 mm, L2=L1+&Dgr;, where 0.1 mm≦&Dgr;≦1.0 mm, and D2=D1+&Dgr;, where 0.1 mm≦&Dgr;≦1.0 mm.Type: GrantFiled: September 3, 2002Date of Patent: November 4, 2003Assignee: Murata Manufacturing Co., Ltd.Inventors: Toshiaki Kariya, Mitsuhide Kato
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Patent number: 6633206Abstract: A high-frequency switch includes a transmission terminal, an antenna terminal, a reception terminal, and a voltage-control terminal; a first diode, the cathode thereof being electrically connected to the transmission terminal, and the anode being electrically connected to the antenna terminal; a first transmission line, electrically connected between the antenna terminal and the reception terminal; a second diode, the cathode thereof being electrically connected to the reception terminal, and the anode being electrically connected to the voltage-control terminal; a second transmission line, one end thereof being electrically connected to the transmission terminal, and the other end being connected to ground; and a capacitor, electrically connected between the voltage-control terminal and ground. The above high-frequency switch can be miniaturized and has superior performance.Type: GrantFiled: January 27, 2000Date of Patent: October 14, 2003Assignee: Murata Manufacturing Co., Ltd.Inventor: Mitsuhide Kato
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Publication number: 20030189814Abstract: An electronic device includes a wiring substrate, an electronic component mounted on the wiring substrate by soldering, and a case fixed to the wiring substrate so as to cover the electronic component. The case is fixed to the wiring substrate via soldering, and the case and the electronic component are adhered to each other with an adhesive resin supplied through an opening provided in the upper surface of the case. The adhesive resin is applied so as not to contact the wiring substrate such that interface separation does not occur between the adhesive resin and the wiring substrate even when the solder for mounting the electronic component on the wiring substrate is melted and expanded in a solder reflow process. As a result, the generation of short circuiting between terminal electrodes of the electronic component, which is caused by the solder flowing in the portion of the interface separation, is prevented.Type: ApplicationFiled: April 5, 2003Publication date: October 9, 2003Applicant: Murata Manufacturing Co., Ltd.Inventors: Mitsuhide Kato, Koji Tanaka, Tetsuo Taniguchi
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Publication number: 20030052748Abstract: A small high frequency circuit component has very small variations in stray capacitance generated between an inductor electrode pattern and a capacitor electrode pattern. As a result, the variations in the characteristics thereof are also small. The inductor electrode pattern is overlaid with the capacitor electrode pattern in a plan view. That is, when viewed from the lamination direction, the projection of the inductor electrode pattern onto the capacitor electrode pattern is included within the capacitor electrode pattern.Type: ApplicationFiled: September 3, 2002Publication date: March 20, 2003Applicant: Murata Manufacturing Co., Ltd.Inventors: Toshiaki Kariya, Mitsuhide Kato
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Patent number: 6518822Abstract: In a high frequency switch, first and second diodes are respectively connected between first and second ports and between first and third ports so that they are directed in the same direction with respect to the first port. Coupling capacitors are connected on both sides of the respective diodes. Distributed constant lines and capacitors are connected between points of connection between the respective diodes and the corresponding capacitors, and reference potentials. Control voltage terminals are connected to points of connection between the distributed constant lines and the capacitors. A distributed constant line and a capacitor are connected between the first port and a reference potential. A fixed voltage terminal is connected through a resistor to a point of connection between the distributed constant line and the capacitor.Type: GrantFiled: December 4, 1995Date of Patent: February 11, 2003Assignee: Murata Manufacturing Co., Ltd.Inventors: Mitsuhide Kato, Teruhisa Tsuru
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Patent number: 6448868Abstract: A high-frequency switch having a greatly reduced occurrence of high harmonic signals includes first and second switches, and each of these two switches includes two diodes and two transmission lines. Besides, one of the two voltage control terminals is connected, via a resistor, to the intermediate connection point between the anode of one of the two diodes of the first switch and one of the two transmission lines of the first switch. The other of the voltage control terminals is connected, via another resistor, to the intermediate connection point between the anode of one of the two diodes of the second switch and one of the two transmission lines of the second switch.Type: GrantFiled: January 17, 2001Date of Patent: September 10, 2002Assignee: Murata Manufacturing Co., Ltd.Inventors: Mitsuhide Kato, Hideki Muto
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Publication number: 20010026198Abstract: A high-frequency switch having a greatly reduced occurrence of high harmonic signals includes first and second switches, and each of these two switches includes two diodes and two transmission lines. Besides, one of the two voltage control terminals is connected, via a resistor, to the intermediate connection point between the anode of one of the two diodes of the first switch and one of the two transmission lines of the first switch. The other of the voltage control terminals is connected, via another resistor, to the intermediate connection point between the anode of one of the two diodes of the second switch and one of the two transmission lines of the second switch.Type: ApplicationFiled: January 17, 2001Publication date: October 4, 2001Applicant: Murata Manufacturing Co., LtdInventors: Mitsuhide Kato, Hideki Muto