Patents by Inventor Kazuo Watada
Kazuo Watada 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: 11987529Abstract: The light shielding member of the present disclosure includes an aluminum oxide ceramics including an oxide of titanium whose composition formula is shown as TiO2-x (1?x<2), and a total content of Fe, Ni, Co, Mn and Cr is 260 mass ppm or less.Type: GrantFiled: August 6, 2019Date of Patent: May 21, 2024Assignee: KYOCERA CorporationInventors: Satoshi Kiyota, Kazuo Watada, Takehisa Higa, Masamichi Shingu, Kunihide Shikata
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Patent number: 11945755Abstract: A heater includes a base body, terminal and joining layer. The base body is made of ceramic. The joining layer contains metal as a principal ingredient and is located between the base body and the terminal. The base body includes a first surface and second surface. The first surface faces an outer side of the base body and includes at least one of a region which is superimposed on the terminal and a region which is located on a periphery of the terminal. The second surface intersects with the first surface and is located on the side closer to an internal portion of the base body on the side away from the first surface. The joining layer extends from the terminal and first surface up to the second surface.Type: GrantFiled: November 22, 2019Date of Patent: April 2, 2024Inventors: Kazuo Watada, Tooru Matsuoka
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Publication number: 20220009841Abstract: A heater includes a base body, terminal and joining layer. The base body is made of ceramic. The joining layer contains metal as a principal ingredient and is located between the base body and the terminal. The base body includes a first surface and second surface. The first surface faces an outer side of the base body and includes at least one of a region which is superimposed on the terminal and a region which is located on a periphery of the terminal. The second surface intersects with the first surface and is located on the side closer to an internal portion of the base body on the side away from the first surface. The joining layer extends from the terminal and first surface up to the second surface.Type: ApplicationFiled: November 22, 2019Publication date: January 13, 2022Inventors: Kazuo WATADA, Tooru MATSUOKA
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Publication number: 20210292239Abstract: The light shielding member of the present disclosure includes an aluminum oxide ceramics including an oxide of titanium whose composition formula is shown as TiO2-x (1?x<2), and a total content of Fe, Ni, Co, Mn and Cr is 260 mass ppm or less.Type: ApplicationFiled: August 6, 2019Publication date: September 23, 2021Inventors: Satoshi KIYOTA, Kazuo WATADA, Takehisa HIGA, Masamichi SHINGU, Kunihide SHIKATA
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Patent number: 9339991Abstract: A metal-ceramic joined body is provided in which the surface roughness of the metal is low, and the joined body is unlikely to break. Provided is a metal-ceramic joined body including a metal mainly composed of titanium and a ceramic, in which, regarding the X-ray diffraction peak intensity of a surface portion of the metal excluding a joining region to the ceramic, at least one of I110 and I012 is larger than I011, where I011 is the intensity of a peak attributable to a first plane of hexagonal ? titanium, I110 is the intensity of a peak attributable to a second plane of hexagonal ? titanium, and I012 is the intensity of a peak attributable to a third plane of hexagonal ? titanium.Type: GrantFiled: September 28, 2012Date of Patent: May 17, 2016Assignee: KYOCERA CorporationInventor: Kazuo Watada
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Publication number: 20140272457Abstract: A metal-ceramic joined body is provided in which the surface roughness of the metal is low, and the joined body is unlikely to break. Provided is a metal-ceramic joined body including a metal mainly composed of titanium and a ceramic, in which, regarding the X-ray diffraction peak intensity of a surface portion of the metal excluding a joining region to the ceramic, at least one of I110 and I012 is larger than I011, where I011 is the intensity of a peak attributable to a first plane of hexagonal ? titanium, I110 is the intensity of a peak attributable to a second plane of hexagonal ? titanium, and I012 is the intensity of a peak attributable to a third plane of hexagonal ? titanium.Type: ApplicationFiled: September 28, 2012Publication date: September 18, 2014Applicant: KYOCERA CorporationInventor: Kazuo Watada
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Patent number: 7196667Abstract: A surface-mount type antenna includes a rectangular-parallelepiped base body made of a dielectric or magnetic material, having a first surface to be placed on a target substrate, second to fifth surfaces that are continuous with the first surface, and a sixth surface located in parallel with the first surface; a ground electrode formed on at least one of the second to fifth surfaces; two radiating electrodes that are continuous with the ground electrode and extend over two or more adjacent surfaces of the second to sixth surfaces; and two feeding electrodes formed on at least one of the second to fifth surfaces so as to be spaced apart circumferentially of the continuum of the second to fifth surfaces to provide the ground electrode in between. The feeding electrode is capacitance-coupled to the radiating electrode for effecting feeding.Type: GrantFiled: August 26, 2005Date of Patent: March 27, 2007Assignee: Kyocera CorporationInventors: Kazuo Watada, Shunichi Murakawa, Akinori Sato, Koji Hamada
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Patent number: 7142160Abstract: In order to provide a small size antenna where excellent antenna properties can be stably gained, a frequency adjustment is easy and a simple measurement is possible, according to the present invention, a small size antenna formed of a conductor of at least two adjoining surfaces of a base in rectangular parallelepiped form made of dielectric ceramics is characterized in that: a step is made of a flat portion parallel to one surface of the two adjoining surfaces and an inclining portion located between the one surface and the flat portion, in a corner portion of the two surfaces on which the conductor is formed; the width of the flat portion is 0.08 mm or less; and a border portion between the flat portion and the other surface of the two adjoining surfaces is a curve having a curvature radius R of 0.03 mm to 0.2 mm.Type: GrantFiled: September 10, 2004Date of Patent: November 28, 2006Assignee: Kyocera CorporationInventors: Tsuyoshi Furuno, Kazuo Watada, Koji Hamada, Shunichi Murakawa
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Patent number: 7026994Abstract: An surface-mount type antenna includes a rectangular parallelepiped base body, a feeding terminal formed at one-end-side part of one side surface thereof, and a radiating electrode, to one end of which is connected the feeding terminal, disposed such that its other end is routed from one-end-side part of one side surface, through one-end-side part of one principal surface, to another-end-side part of one principal surface, and extends from the other-end-side part to the one end side part parallelly with a ridge of the base body, and is eventually formed into an open end. An antenna apparatus is constructed by mounting the surface-mount type antenna on a mounting substrate having a feeding electrode and a ground conductor layer with a linear side edge located near the feeding electrode, with the ridge of the base body arranged parallel to the linear side edge of the ground conductor layer.Type: GrantFiled: December 12, 2003Date of Patent: April 11, 2006Assignee: Kyocera CorporationInventors: Takanori Ikuta, Akinori Sato, Kazuo Watada, Shunichi Murakawa
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Publication number: 20060049990Abstract: A surface-mount type antenna includes a rectangular-parallelepiped base body made of a dielectric or magnetic material, having a first surface to be placed on a target substrate, second to fifth surfaces that are continuous with the first surface, and a sixth surface located in parallel with the first surface; a ground electrode formed on at least one of the second to fifth surfaces; two radiating electrodes that are continuous with the ground electrode and extend over two or more adjacent surfaces of the second to sixth surfaces; and two feeding electrodes formed on at least one of the second to fifth surfaces so as to be spaced apart circumferentially of the continuum of the second to fifth surfaces to provide the ground electrode in between. The feeding electrode is capacitance-coupled to the radiating electrode for effecting feeding.Type: ApplicationFiled: August 26, 2005Publication date: March 9, 2006Inventors: Kazuo Watada, Shunichi Murakawa, Akinori Sato, Koji Hamada
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Patent number: 6970135Abstract: The invention provides an antenna apparatus including a driven element formed of a rectangular conductor, and a grounding plate which is arranged in proximity to at least one of side edges of the driven element, with a predetermined interval secured therebetween. This construction requires less mounting space, achieves wide bandwidth and low conductor loss.Type: GrantFiled: September 18, 2002Date of Patent: November 29, 2005Assignee: Kyocera CorporationInventors: Akinori Sato, Shunichi Murakawa, Kazuo Watada, Hiroshi Yoshizaki
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Patent number: 6903691Abstract: The surface-mount type antenna includes: a substantially rectangular parallelepiped base body; feeding and ground terminals formed on one side surface of the base body; and a radiating electrode, to one end of which is connected the ground terminal, disposed such that its other end extends from one side surface, through another end side part of one principal surface of the base body, to the one end side part thereof, then turns to the other end side part; and is eventually formed into an open end located near the other end side part. The feeding terminal is disposed near the radiating electrode. The antenna apparatus is constructed by mounting the surface-mount type antenna on the mounting substrate having the feeding electrode, the ground electrode, and the ground conductor layer.Type: GrantFiled: November 26, 2003Date of Patent: June 7, 2005Assignee: Kyocera CorporationInventors: Akinori Sato, Takanori Ikuta, Kazuo Watada, Shunichi Murakawa
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Publication number: 20050062650Abstract: In order to provide a small size antenna where excellent antenna properties can be stably gained, a frequency adjustment is easy and a simple measurement is possible, according to the present invention, a small size antenna formed of a conductor of at least two adjoining surfaces of a base in rectangular parallelepiped form made of dielectric ceramics is characterized in that: a step is made of a flat portion parallel to one surface of the two adjoining surfaces and an inclining portion located between the one surface and the flat portion, in a corner portion of the two surfaces on which the conductor is formed; the width of the flat portion is 0.08 mm or less; and a border portion between the flat portion and the other surface of the two adjoining surfaces is a curve having a curvature radius R of 0.03 mm to 0.2 mm.Type: ApplicationFiled: September 10, 2004Publication date: March 24, 2005Inventors: Tsuyoshi Furuno, Kazuo Watada, Koji Hamada, Shunichi Murakawa
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Patent number: 6822620Abstract: The helical antenna comprises a base body and a helically-configured conductor on a top surface of the base body, wherein base body's thickness a is given as 0.3≦a≦3 (mm); length b is given as 5≦b≦20 (mm); and relative dielectric constant &egr;r is given as 3≦&egr;r≦30, and conductor's winding number x is given as 3≦x≦16 (turns), and its resonant frequency f and conductor width w satisfy formulae (1): f=Ax+By+C (MHz) and (2): w=Dx+E (mm), where y represents base body width and A through E represent constants determined according to the base body's thickness a, length b, and relative dielectric constant &egr;r.Type: GrantFiled: March 13, 2003Date of Patent: November 23, 2004Assignee: Kyocera CorporationInventors: Kazuo Watada, Shunichi Murakawa, Hiroshi Yoshizaki, Akinori Sato
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Patent number: 6806832Abstract: In a surface-mount type antenna, a substantially-rectangular solid base body has a feeding terminal and a ground terminal formed on its one side surface. A radiating electrode has its one end connected to the ground terminal and is disposed helically across the surfaces of base body extending from one side surface to one principal surface. Another end of radiating electrode extends from one principal surface, through another side surface, toward another principal surface, to form a wide-area portion facing the feeding terminal. An antenna apparatus is constructed by mounting the surface-mount type antenna on a mounting substrate having formed thereon a feeding electrode, a ground electrode, and a ground conductor layer, and simultaneously connecting the feeding terminal and the ground terminal to the feeding electrode and the ground electrode, respectively.Type: GrantFiled: June 18, 2003Date of Patent: October 19, 2004Assignee: Kyocera CorporationInventors: Akinori Sato, Takanori Ikuta, Kazuo Watada, Shunichi Murakawa
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Publication number: 20040169606Abstract: The surface-mount type antenna includes: a substantially prismatic base body; feeding and ground terminals formed on one side surface of the base body; and a radiating electrode, to one end of which is connected the ground terminal, disposed such that its other end extends from one side surface, through another end side part of one principal surface of the base body, to the one end side part thereof, then turns to the other end side part, and is eventually formed into an open end located near the other end side part. The feeding terminal is disposed near the radiating electrode. The antenna apparatus is constructed by mounting the surface-mount type antenna on the mounting substrate having the feeding electrode, the ground electrode, and the ground conductor layer.Type: ApplicationFiled: November 26, 2003Publication date: September 2, 2004Applicant: KYOCERA CORPORATIONInventors: Akinori Sato, Takanori Ikuta, Kazuo Watada, Shunichi Murakawa
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Publication number: 20040125032Abstract: An surface-mount type antenna includes a rectangular parallelepiped base body, a feeding terminal formed at one-end-side part of one side surface thereof, and a radiating electrode, to one end of which is connected the feeding terminal, disposed such that its other end is routed from one-end-side part of one side surface, through one-end-side part of one principal surface, to another-end-side part of one principal surface, and extends from the other-end-side part to the one end side part parallelly with a ridge of the base body, and is eventually formed into an open end. An antenna apparatus is constructed by mounting the surface-mount type antenna on a mounting substrate having a feeding electrode and a ground conductor layer with a linear side edge located near the feeding electrode, with the ridge of the base body arranged parallel to the linear side edge of the ground conductor layer.Type: ApplicationFiled: December 12, 2003Publication date: July 1, 2004Applicant: KYOCERA CORPORATIONInventors: Takanori Ikuta, Akinori Sato, Kazuo Watada, Shunichi Murakawa
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Publication number: 20040008141Abstract: In a surface-mount type antenna, a substantially-rectangular solid base body has a feeding terminal and a ground terminal formed on its one side surface. A radiating electrode has its one end connected to the ground terminal and is disposed helically across the surfaces of base body extending from one side surface to one principal surface. Another end of radiating electrode extends from one principal surface, through another side surface, toward another principal surface, to form a wide-area portion facing the feeding terminal. An antenna apparatus is constructed by mounting the surface-mount type antenna on a mounting substrate having formed thereon a feeding electrode, a ground electrode, and a ground conductor layer, and simultaneously connecting the feeding terminal and the ground terminal to the feeding electrode and the ground electrode, respectively.Type: ApplicationFiled: June 18, 2003Publication date: January 15, 2004Applicant: KYOCERA CORPORATIONInventors: Akinori Sato, Takanori Ikuta, Kazuo Watada, Shunichi Murakawa
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Patent number: 6653769Abstract: Spacers used in a picture display device are formed of a sintered product having a structure in which at least one kind of metal selected from the group consisting of Si, Zn, Al, Sn, Cu and Mg is dispersed in a glass. In the picture display device using spacers, therefore, the spacers are effectively prevented from being electrically charged and, besides, trouble such as distortion in the displayed picture caused by the electric charge in the spacers is effectively prevented, too. In producing the spacers by firing, further, the volume expands due to the oxidation of the metal component, whereby shrinkage due to firing is effectively relaxed, making it possible to produce the spacers maintaining a high dimensional precision. Besides, the spacers are effectively prevented from being deformed by the shrinkage caused by firing.Type: GrantFiled: June 16, 2000Date of Patent: November 25, 2003Assignee: Kyocera CorporationInventors: Yasuhiko Nishioka, Yasuhito Muramoto, Masashi Kato, Kiyohiro Sakasegawa, Kazuo Watada, Akihiko Takahashi, Kouji Hamada
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Patent number: 6653986Abstract: It is an object of the invention to provide a meander antenna that is smaller and lighter, in which the resonance frequency easily can be tuned, as well as a method for tuning its resonance frequency. The meander antenna comprises a meandering conductor on the surface of a substrate. The meander antenna is provided with a short-circuit conductor line that forms a short-circuit between two parallel opposing lines into which the conductor is bent, or an open conductor line in which a line short-circuiting the two parallel opposing lines is open. The resonance frequency can be tuned and lowered by cutting open the short-circuit line or increased by short-circuiting the open conductor line.Type: GrantFiled: April 26, 2002Date of Patent: November 25, 2003Assignee: Kyocera CorporationInventors: Kazuo Watada, Shunichi Murakawa, Akinori Sato, Hiroshi Yoshizaki