Patents by Inventor Toshikatsu Takada
Toshikatsu Takada 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: 7484897Abstract: There is provided an optical module for coupling with a fiber optic cable through an optical connector, including a module body connectable with a plug of the optical connector by a dedicated guide pin, with a side surface of the module body being opposed to a mating surface of the connector plug at which an end face of the fiber optic cable is exposed, and an optical element mounted to the module body and having an optical axis brought into alignment with an optical axis of the fiber optic cable upon fitting of the guide pin into the module body and the connector plug.Type: GrantFiled: October 31, 2007Date of Patent: February 3, 2009Assignee: NGK Spark Plug Co., Ltd.Inventors: Masaki Ono, Toshikatsu Takada, Toshifumi Kojima, Takeshi Ohno, Susumu Wakamatsu, Toshikazu Horio, Ayako Kawamura
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Patent number: 7404680Abstract: There is provided an optical module for coupling with a fiber optic cable through an optical connector, including a module body connectable with a plug of the optical connector by a dedicated guide pin, with a side surface of the module body being opposed to a mating surface of the connector plug at which an end face of the fiber optic cable is exposed, and an optical element mounted to the module body and having an optical axis brought into alignment with an optical axis of the fiber optic cable upon fitting of the guide pin into the module body and the connector plug.Type: GrantFiled: May 27, 2005Date of Patent: July 29, 2008Assignee: NGK Spark Plug Co., Ltd.Inventors: Masaki Ono, Toshikatsu Takada, Toshifumi Kojima, Takeshi Ohno, Susumu Wakamatsu, Toshikazu Horio, Ayako Kawamura
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Publication number: 20080063342Abstract: There is provided an optical module for coupling with a fiber optic cable through an optical connector, including a module body connectable with a plug of the optical connector by a dedicated guide pin, with a side surface of the module body being opposed to a mating surface of the connector plug at which an end face of the fiber optic cable is exposed, and an optical element mounted to the module body and having an optical axis brought into alignment with an optical axis of the fiber optic cable upon fitting of the guide pin into the module body and the connector plug.Type: ApplicationFiled: October 31, 2007Publication date: March 13, 2008Inventors: Masaki ONO, Toshikatsu TAKADA, Toshifumi KOJIMA, Takeshi OHNO, Susumu WAKAMATSU, Toshikazu HORIO, Ayako KAWAMURA
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Patent number: 7221829Abstract: A substrate assembly for supporting an optical component includes a substrate having a front surface and a first recess, a second recess formed portion disposed in the first recess and having a second recess smaller in diameter than the first recess and having an open end at least at a side corresponding to the front surface, the second recess formed portion being made of a material having a machinability better than a material forming the substrate, and an alignment guide member fitted in the second recess and having a protruded portion protruding from the front surface of the ceramic substrate and fittingly engageable in an alignment hole of the optical component. A method of producing such a substrate assembly is also provided.Type: GrantFiled: February 23, 2004Date of Patent: May 22, 2007Assignee: NGK Spark Plug Co., Ltd.Inventors: Takeshi Oono, Toshikatsu Takada, Mitsugu Onoda, Toshifumi Kojima, Toshikazu Horio, Ayako Kawamura
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Patent number: 7150569Abstract: An optical device mounted substrate assembly includes a ceramic substrate having a first recess, an optical device mounted on the ceramic substrate and having one of a light emitting portion and a light receiving portion, the optical device being to be optically connected to one of an optical waveguide and an optical fiber connector in way as to align optical axes of the optical wave guide or the optical fiber connector with each other, a resin layer disposed in the first recess and having a second recess smaller in diameter than the first recess, and an alignment guide member fitted in the second recess and having a protruded portion protruding from a front surface of the ceramic substrate and fittingly engageable in an alignment hole of one of the optical waveguide and the optical fiber connector. A fabrication method of such a substrate assembly is also provided.Type: GrantFiled: February 23, 2004Date of Patent: December 19, 2006Assignee: Nor Spark Plug Co., Ltd.Inventors: Takeshi Oono, Toshikatsu Takada, Mitsugu Onoda, Toshifumi Kojima, Toshikazu Horio, Ayako Kawamura
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Patent number: 7129893Abstract: A high frequency antenna module having a substrate, a feeding electrode and two dielectric chip antennas being mounted on said substrate. Each of the two dielectric chip antennas having a base end connected to the feeding electrode and a floating end as an open end. A distance between said open ends of the two dielectric chip antennas is shorter than a distance between said base ends of the two dielectric chip antennas.Type: GrantFiled: February 9, 2004Date of Patent: October 31, 2006Assignee: NGK Spark Plug Co., Ltd.Inventors: Naoki Otaka, Noriyasu Sugimoto, Toshikatsu Takada
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Patent number: 7071875Abstract: A multiple band antenna comprising: a dielectric substrate; and a plurality of antenna elements being formed of each a conductor on a same face of the dielectric substrate and provided in a one-to-one correspondence with frequency bands to operate the frequency bands, wherein each of the antenna elements has an open end as one end and is connected at an opposite end to a feeder line and comprises a narrow part being placed on a side of the open end and formed by line with a narrow wide and a wide part being placed on a side of the feeder line and having a wider width than the narrow wide of the narrow part, the narrow part is turned in order in substantially the same direction as a width direction of the wide part, to form a meander shape, and the antenna elements have the wide parts joined in one piece forming a predetermined angle with each other so as to share a part of the wide parts.Type: GrantFiled: May 28, 2003Date of Patent: July 4, 2006Assignee: NGK Spark Plug Co., Ltd.Inventors: Noriyasu Sugimoto, Naoki Otaka, Daisuke Nakata, Susumu Wakamatsu, Takashi Kanamori, Toshikatsu Takada
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Patent number: 6995710Abstract: A dielectric antenna is provided for a high frequency wireless communication apparatus. The antenna includes a dielectric substrate and a conductive meander line layer formed on the dielectric substrate. A conductive feed line layer, having a greater line width than the width of the meander line layer, is also formed on the dielectric substrate. A conductive taper layer connects the conductive meander line layer to the conductive feed line layer. An edge of the conductive taper layer slants at an angle from an adjacent edge of the conductive feed line layer in a direction toward the conductive meander line layer.Type: GrantFiled: October 9, 2002Date of Patent: February 7, 2006Assignee: NGK Spark Plug Co., Ltd.Inventors: Noriyasu Sugimoto, Takashi Kanamori, Daisuke Nakata, Susumu Wakamatsu, Toshikatsu Takada
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Publication number: 20050265671Abstract: There is provided an optical module for coupling with a fiber optic cable through an optical connector, including a module body connectable with a plug of the optical connector by a dedicated guide pin, with a side surface of the module body being opposed to a mating surface of the connector plug at which an end face of the fiber optic cable is exposed, and an optical element mounted to the module body and having an optical axis brought into alignment with an optical axis of the fiber optic cable upon fitting of the guide pin into the module body and the connector plug.Type: ApplicationFiled: May 27, 2005Publication date: December 1, 2005Inventors: Masaki Ono, Toshikatsu Takada, Toshifumi Kojima, Takeshi Ohno, Susumu Wakamatsu, Toshikazu Horio, Ayako Kawamura
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Publication number: 20050105860Abstract: An optical device mounted substrate assembly includes a ceramic substrate having a first recess, an optical device mounted on the ceramic substrate and having one of a light emitting portion and a light receiving portion, the optical device being to be optically connected to one of an optical waveguide and an optical fiber connector in way as to align optical axes of the optical wave guide or the optical fiber connector with each other, a resin layer disposed in the first recess and having a second recess smaller in diameter than the first recess, and an alignment guide member fitted in the second recess and having a protruded portion protruding from a front surface of the ceramic substrate and fittingly engageable in an alignment hole of one of the optical waveguide and the optical fiber connector. A fabrication method of such a substrate assembly is also provided.Type: ApplicationFiled: February 23, 2004Publication date: May 19, 2005Inventors: Takeshi Oono, Toshikatsu Takada, Mitsugu Onoda, Toshifumi Kojima, Toshikazu Horio, Ayako Kawamura
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Patent number: 6850193Abstract: A multiple band antenna comprising: a dielectric substrate; and a plurality of antenna elements being formed of each a conductor on a same face of the dielectric substrate and provided in a one-to-one correspondence with frequency bands to operate the frequency bands, wherein each of the antenna elements has an open end as one end and is connected at an opposite end to a feeder line and comprises a narrow part being placed on a side of the open end and formed by line with a narrow wide and a wide part being placed on a side of the feeder line and having a wider width than the narrow wide of the narrow part, the narrow part is turned in order in substantially the same direction as a width direction of the wide part, to form a meander shape, and the antenna elements have the wide parts joined in one piece forming a predetermined angle with each other so as to share a part of the wide parts.Type: GrantFiled: May 28, 2003Date of Patent: February 1, 2005Assignee: NGK Spark Plug Co., Ltd.Inventors: Noriyasu Sugimoto, Naoki Otaka, Daisuke Nakata, Susumu Wakamatsu, Takashi Kanamori, Toshikatsu Takada
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Patent number: 6842143Abstract: A multiple band antenna comprising: a dielectric substrate; and a plurality of conductor parts formed on a face of the dielectric substrate and connected to each other, wherein the plurality of conductor parts comprises: a first conductor part extending in a first direction with a repetitive pattern of peaks and valleys of a linear line and arriving at an open end; a second conductor part extending in a second direction substantially opposite to the first direction with a repetitive pattern of peaks and valleys of a linear line and arriving at an open end; and a third conductor part formed of a wide line having a wider width than that of each of the linear lines of the first and second conductor parts and connected to opposite ends of the first and second conductor parts and also connected to a feeder line.Type: GrantFiled: May 28, 2003Date of Patent: January 11, 2005Assignee: NGK Spark Plug Co., Ltd.Inventors: Naoki Otaka, Noriyasu Sugimoto, Toshikatsu Takada
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Publication number: 20040183729Abstract: A high frequency antenna module having a substrate, a feeding electrode and two dielectric chip antennas being mounted on said substrate. Each of the two dielectric chip antennas having a base end connected to the feeding electrode and a floating end as an open end. A distance between said open ends of the two dielectric chip antennas is shorter than a distance between said base ends of the two dielectric chip antennas.Type: ApplicationFiled: February 9, 2004Publication date: September 23, 2004Inventors: Naoki Otaka, Noriyasu Sugimoto, Toshikatsu Takada
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Publication number: 20040184737Abstract: A substrate assembly for supporting an optical component includes a substrate having a front surface and a first recess, a second recess formed portion disposed in the first recess and having a second recess smaller in diameter than the first recess and having an open end at least at a side corresponding to the front surface, the second recess formed portion being made of a material having a machinability better than a material forming the substrate, and an alignment guide member fitted in the second recess and having a protruded portion protruding from the front surface of the ceramic substrate and fittingly engageable in an alignment hole of the optical component. A method of producing such a substrate assembly is also provided.Type: ApplicationFiled: February 23, 2004Publication date: September 23, 2004Applicant: NGK SPARK PLUG CO., LTD.Inventors: Takeshi Oono, Toshikatsu Takada, Mitsugu Onoda, Toshifumi Kojima, Toshikazu Horio, Ayako Kawamura
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Publication number: 20040104850Abstract: A multiple band antenna comprising: a dielectric substrate; and a plurality of conductor parts formed on a face of the dielectric substrate and connected to each other, wherein the plurality of conductor parts comprises: a first conductor part extending in a first direction with a repetitive pattern of peaks and valleys of a linear line and arriving at an open end; a second conductor part extending in a second direction substantially opposite to the first direction with a repetitive pattern of peaks and valleys of a linear line and arriving at an open end; and a third conductor part formed of a wide line having a wider width than that of each of the linear lines of the first and second conductor parts and connected to opposite ends of the first and second conductor parts and also connected to a feeder line.Type: ApplicationFiled: May 28, 2003Publication date: June 3, 2004Inventors: Naoki Otaka, Noriyasu Sugimoto, Toshikatsu Takada
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Publication number: 20040001031Abstract: A multiple band antenna comprising: a dielectric substrate; and a plurality of antenna elements being formed of each a conductor on a same face of the dielectric substrate and provided in a one-to-one correspondence with frequency bands to operate the frequency bands, wherein each of the antenna elements has an open end as one end and is connected at an opposite end to a feeder line and comprises a narrow part being placed on a side of the open end and formed by line with a narrow wide and a wide part being placed on a side of the feeder line and having a wider width than the narrow wide of the narrow part, the narrow part is turned in order in substantially the same direction as a width direction of the wide part, to form a meander shape, and the antenna elements have the wide parts joined in one piece forming a predetermined angle with each other so as to share a part of the wide parts.Type: ApplicationFiled: May 28, 2003Publication date: January 1, 2004Inventors: Noriyasu Sugimoto, Naoki Otaka, Daisuke Nakata, Susumu Wakamatsu, Takashi Kanamori, Toshikatsu Takada
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Publication number: 20030092420Abstract: A dielectric antenna is provided for a high frequency wireless communication apparatus. The antenna includes a dielectric substrate and a conductive meander line layer formed on the dielectric substrate. A conductive feed line layer, having a greater line width than the width of the meander line layer, is also formed on the dielectric substrate. A conductive taper layer connects the conductive meander line layer to the conductive feed line layer. An edge of the conductive taper layer slants at an angle from an adjacent edge of the conductive feed line layer in a direction toward the conductive meander line layer.Type: ApplicationFiled: October 9, 2002Publication date: May 15, 2003Inventors: Noriyasu Sugimoto, Takashi Kanamori, Daisuke Nakata, Susumu Wakamatsu, Toshikatsu Takada
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Patent number: 5685968Abstract: In a ceramic substrate with a thin-film capacitor, having a ceramic substrate a lower electrode layer formed on the ceramic substrate, a dielectric layer formed on the lower electrode layer and made of an oxide of a material constituting the lower electrode layer, and an upper electrode layer formed on the dielectric layer, a plating layer is provided between the ceramic base and the lower electrode layer to serve as a basis for the lower electrode layer.Type: GrantFiled: October 11, 1995Date of Patent: November 11, 1997Assignee: NGK Spark Plug Co., Ltd.Inventors: Toshitaka Hayakawa, Shinobu Yoshida, Toshikatsu Takada
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Patent number: 5563764Abstract: A ceramic substrate has on the surface thereof a lower electrode for forming a thin-film condenser, wherein the lower electrode is formed by plating or the lower electrode consists of a plating layer formed on the surface of the ceramic substrate.Type: GrantFiled: December 22, 1994Date of Patent: October 8, 1996Assignee: NGK Spark Plug Co., Ltd.Inventors: Michiya Arakawa, Toshikatsu Takada
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Patent number: 5442145Abstract: A terminal for an electric circuit device, comprises a copper core, a gold (Au) layer provided over the copper core, and a nickel (Ni) layer having the thickness of 1.5 .mu.m or less, provided under the gold (Au) layer. In another embodiment, the core is made of an alloy containing (Ni) and covered by a metallized surface layer made of copper.Type: GrantFiled: October 12, 1993Date of Patent: August 15, 1995Assignee: NGK Spark Plug Co., Ltd.Inventors: Ryuji Imai, Toshikatsu Takada