Patents by Inventor Yuji Miwa

Yuji Miwa 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: 10659002
    Abstract: An elastic wave device includes a lamination layer film including a piezoelectric thin film on a support substrate. The lamination layer film is not partially present in a region located in an outer side portion of a region where IDT electrodes are provided. A first insulation layer extends from at least a portion of a region where the lamination layer film is not present to an upper portion of the piezoelectric thin film. A wiring electrode has a width of about 6 ?m and extends from the upper portion of the piezoelectric thin film to an upper portion of the first insulation layer, and extends onto a section of the first insulation layer in the region.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: May 19, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Koji Yamamoto, Tsutomu Takai, Seiji Kai, Hisashi Yamazaki, Yuji Miwa, Takashi Yamane, Noriyoshi Ota, Atsushi Tanaka
  • Patent number: 10659001
    Abstract: An elastic wave device includes a lamination layer film including a piezoelectric thin film on a support substrate. The lamination layer film is not partially present in a region located in an outer side portion of a region where IDT electrodes are provided. A first insulation layer extends from at least a portion of a region where the lamination layer film is not present to an upper portion of the piezoelectric thin film. A wiring electrode extends from the upper portion of the piezoelectric thin film to an upper portion of the first insulation layer, and extends onto a section of the first insulation layer in the region.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: May 19, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Koji Yamamoto, Tsutomu Takai, Seiji Kai, Hisashi Yamazaki, Yuji Miwa, Takashi Yamane
  • Patent number: 10320362
    Abstract: An elastic wave device includes a multilayer film provided on a support substrate and including a piezoelectric thin film and a layer other than the piezoelectric thin film, an interdigital transducer electrode provided on one surface of the piezoelectric thin film, and an external connection terminal electrically connected to the interdigital transducer electrode. In a plan view, the multilayer film is partially absent or omitted in a region outside a region where the interdigital transducer electrode is provided, and the elastic wave device further includes a first insulating layer provided on the support substrate in at least a portion of a region where the multilayer film is absent or omitted.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: June 11, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Taku Kikuchi, Shin Saijo, Hisashi Yamazaki, Masahiro Fukushima, Yuji Miwa
  • Patent number: 10250220
    Abstract: An elastic wave device includes a piezoelectric substrate, an IDT electrode, wiring, a pad, an under bump metal, a first dielectric layer, and a second dielectric layer. At least a portion of the IDT electrode includes a first electrically conductive film, at least a portion of the wiring includes a multilayer body including the first electrically conductive film and a second electrically conductive film, and at least a portion of the pad includes the second electrically conductive film. The second dielectric layer covers the region other than the contact region between the second electrically conductive film and the under bump metal. Consequently, the second electrically conductive film is covered with the second dielectric layer and the under bump metal and is not exposed to air.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: April 2, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yuji Miwa, Hijiri Sumii, Junpei Yasuda, Taku Kikuchi, Hisashi Yamazaki
  • Publication number: 20180358950
    Abstract: An elastic wave device includes a lamination layer film including a piezoelectric thin film on a support substrate. The lamination layer film is not partially present in a region located in an outer side portion of a region where IDT electrodes are provided. A first insulation layer extends from at least a portion of a region where the lamination layer film is not present to an upper portion of the piezoelectric thin film. A wiring electrode has a width of about 6 ?m and extends from the upper portion of the piezoelectric thin film to an upper portion of the first insulation layer, and extends onto a section of the first insulation layer in the region.
    Type: Application
    Filed: August 22, 2018
    Publication date: December 13, 2018
    Inventors: Koji YAMAMOTO, Tsutomu TAKAI, Seiji KAI, Hisashi YAMAZAKI, Yuji MIWA, Takashi YAMANE, Noriyoshi OTA, Atsushi TANAKA
  • Publication number: 20180097502
    Abstract: An elastic wave device includes a lamination layer film including a piezoelectric thin film on a support substrate. The lamination layer film is not partially present in a region located in an outer side portion of a region where IDT electrodes are provided. A first insulation layer extends from at least a portion of a region where the lamination layer film is not present to an upper portion of the piezoelectric thin film. A wiring electrode extends from the upper portion of the piezoelectric thin film to an upper portion of the first insulation layer, and extends onto a section of the first insulation layer in the region.
    Type: Application
    Filed: December 5, 2017
    Publication date: April 5, 2018
    Inventors: Koji Yamamoto, Tsutomu Takai, Seiji Kai, Hisashi Yamazaki, Yuji Miwa, Takashi Yamane
  • Publication number: 20160277003
    Abstract: An elastic wave device includes a multilayer film provided on a support substrate and including a piezoelectric thin film and a layer other than the piezoelectric thin film, an interdigital transducer electrode provided on one surface of the piezoelectric thin film, and an external connection terminal electrically connected to the interdigital transducer electrode. In a plan view, the multilayer film is partially absent or omitted in a region outside a region where the interdigital transducer electrode is provided, and the elastic wave device further includes a first insulating layer provided on the support substrate in at least a portion of a region where the multilayer film is absent or omitted.
    Type: Application
    Filed: June 2, 2016
    Publication date: September 22, 2016
    Inventors: Taku KIKUCHI, Shin SAIJO, Hisashi YAMAZAKI, Masahiro FUKUSHIMA, Yuji MIWA
  • Publication number: 20160156331
    Abstract: An elastic wave device includes a piezoelectric substrate, an IDT electrode, wiring, a pad, an under bump metal, a first dielectric layer, and a second dielectric layer. At least a portion of the IDT electrode includes a first electrically conductive film, at least a portion of the wiring includes a multilayer body including the first electrically conductive film and a second electrically conductive film, and at least a portion of the pad includes the second electrically conductive film. The second dielectric layer covers the region other than the contact region between the second electrically conductive film and the under bump metal. Consequently, the second electrically conductive film is covered with the second dielectric layer and the under bump metal and is not exposed to air.
    Type: Application
    Filed: February 3, 2016
    Publication date: June 2, 2016
    Inventors: Yuji MIWA, Hijiri SUMII, Junpei YASUDA, Taku KIKUCHI, Hisashi YAMAZAKI
  • Patent number: 7798617
    Abstract: An inkjet recording apparatus includes a passage unit in which individual ink passages are formed, an actuator unit fixed to the passage unit, a flat flexible substrate, and a drive signal outputting unit. The actuator unit includes individual electrodes, a common electrode, a piezoelectric layer, and individual lands. The flat flexible substrate includes output terminals connected to the respective individual lands, and a check terminal bonded to a bonding face of the actuator unit. The drive signal outputting unit outputs drive signals to be supplied to the individual electrodes via the respective output terminals. Based on a measurement result of an electrical characteristic with respect to the check terminal, it is judged whether the check terminal has been peeled off from the bonding face of the actuator unit.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: September 21, 2010
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Koji Ito, Yuji Miwa
  • Publication number: 20080186342
    Abstract: An inkjet recording apparatus includes a passage unit in which individual ink passages are formed, an actuator unit fixed to the passage unit, a flat flexible substrate, and a drive signal outputting unit. The actuator unit includes individual electrodes, a common electrode, a piezoelectric layer, and individual lands. The flat flexible substrate includes output terminals connected to the respective individual lands, and a check terminal bonded to a bonding face of the actuator unit. The drive signal outputting unit outputs drive signals to be supplied to the individual electrodes via the respective output terminals. Based on a measurement result of an electrical characteristic with respect to the check terminal, it is judged whether the check terminal has been peeled off from the bonding face of the actuator unit.
    Type: Application
    Filed: February 5, 2008
    Publication date: August 7, 2008
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Koji Ito, Yuji Miwa
  • Publication number: 20080108018
    Abstract: An artificial tooth is bonded to a malformed tooth without cutting the tooth, whereby a row of teeth is changed in a rapid and straightforward manner. The muscles surrounding the mouth cavity are pushed by the artificial tooth, thereby changing the appearance of the face. The present invention provides a bonding tooth (1) that is bonded to a tooth (T) in a row of malformed teeth so that muscles of the mouth in front of the maxillary and mandibular bodies, which muscles constitute most of the mouth muscles that control the appearance of the mouth, are subjected to pressure from an interior of the mouth cavity, and the appearance of the mouth is caused to change.
    Type: Application
    Filed: December 8, 2006
    Publication date: May 8, 2008
    Inventor: Yuji Miwa
  • Patent number: 5828820
    Abstract: There is provided by the present invention a mirror disk device, in which specific numbers identical to those written in disks and name of a drive used as for a master disk are recorded in a set-up memory incorporated therein, this data is compared to a specific number written in a disk to determine a master disk or to transfer data to a slave disk. In the mirror disk according to the present invention, ranges of specific numbers are discretely defined without any conflict according to switching positions of a rotary switch. A first specific number is decided within each of the ranges by a random function and then serial numbers subsequent to the first specific number are assigned as specific numbers. With this feature, it is possible to prevent effective data from being lost due to, for instance, instruction miss because of manual operation.
    Type: Grant
    Filed: July 19, 1995
    Date of Patent: October 27, 1998
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Sakuyuki Onishi, Yuji Miwa
  • Patent number: 5285045
    Abstract: A laser processing apparatus which is high in production efficiency, and capable of easily and automatically changing processing heads from one to another according to the type of the thermal processing to be done is disclosed. The laser processing apparatus includes a plurality of processing heads composed of a processing head for cutting work, a processing head for welding work and a processing head for hardening work. The laser processing apparatus moves one processing head toward a processing position with respect to the frame having a laser beam generator by a processing head driving unit. The apparatus includes a workpiece moving system for moving a workpiece with respect to the processing head positioned in the processing position. Therefore, a compact laser processing apparatus, high in production efficiency, and which is capable of selecting an optimum processing head from processing heads according to the type of the thermal processing to be done, results.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: February 8, 1994
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Susumu Ito, Hikoharu Aoki, Yuji Miwa, Akihiko Oshima
  • Patent number: 5187900
    Abstract: An auxiliary device for a machining tool that converts a standard rotary machining tool into an oscillation-machining tool. The device has a chuck, or other workpiece gripping device, at an upper end of a shaft. The shaft may be rotated around an axis parallel to the axis of the rotary machining tool and may be oscillated along the rotary axis. The degree of oscillation may be adjusted dependent on the length of the surface to be machined.
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: February 23, 1993
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yuji Miwa
  • Patent number: 5144771
    Abstract: In an ultrasonic machine including an ultrasonic horn connected with a piezoelectric transducer and a machining liquid passage, a tool mounted on the ultrasonic horn and provided with a bore inside thereof that communicates with the machining liquid passage, the ultrasonic machine comprising: a fixed side member fixed to the machining body and having a machining liquid supply passage, an annular groove; a horn communication passage communicating with the machining liquid passage; a first thin portion provided near the opening; a pressure chamber drop means provided near the first thin portion; a drain provided in the fixed side member and communicating with the pressure chamber drop means; a second thin portion provided near the pressure chamber drop means; and an air supply passage provided in the fixed side member and communicating with the second thin portion.
    Type: Grant
    Filed: January 28, 1991
    Date of Patent: September 8, 1992
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yuji Miwa
  • Patent number: 5140773
    Abstract: This invention is directed to an ultrasonic machine and its method of operation. The machine has a main shaft rotatably supported in a housing, a machining head attached to one end of the main shaft, a piezoelectric transducer provided on the machining head, and a tool attached to an end of the machining head. The machine also includes slip rings provided on the periphery of either the machining head or the main shaft as an input terminal, brushes being in slidable touch with the slip rings and connected to a power source, and a brush detach apparatus for detaching the brushes from the slip rings to reduce friction and disconnect ultrasonic operation. The tool is rotated and pressed onto the work, hence starting a boring operation. After the rotation forms a pre-determined depth of a bore, the tool is ultrasonically vibrated to bore further into the work. The method and apparatus are particularly suited to boring small holes in ceramics and the like.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: August 25, 1992
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yuji Miwa, Hideki Takabayashi
  • Patent number: 5058927
    Abstract: A fluid coupling device of non-contact type having a stationary main coupling body and a rotary shaft rotatably supported through bearings to the coupling body and formed with an axial fluid passage extending along a length thereof. A minute space is provided at an end portion of the rotary shaft relative to the coupling body, and a pressure reduction chamber is defined beside the minute space for reducing a pressure of fluid leaking thereinto through the first minute space. A second minute space is provided between an outer peripheral surface of the rotary shaft and an inner peripheral surface of the coupling body. The second minute space is in fluid communication with the pressure reduction chamber and is applied with a pneumatic pressure for blocking the bearing against entry of the leaked fluid.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: October 22, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yuji Miwa
  • Patent number: 4921376
    Abstract: An arbor for mounting a tool such as a drill or a grindstone to the end of a spindle of a machine tool and a machining method of employing such arbor. The arbor comprises a lubricant receiving member provided in the main body for receiving a lubricant supplied, and a lubricant passageway provided in the main body and extending between the lubricant receiving member and the tool mounting portion for flowing the lubricant from the lubricant receiving member to the tool mounting portion so as to supply the lubricant into an interior of the tool. The lubricant supplied from the spindle or another source of supply is allowed to flow through the lubricant receiving member and the lubricant passageway, and is supplied into an interior of the tool to ensure the appropriate supply of the lubricant to the area in which the tool acts upon the workpiece.
    Type: Grant
    Filed: April 26, 1989
    Date of Patent: May 1, 1990
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Naohiko Tani, Masahiro Kouda, Atsushi Ito, Yuji Miwa