Patents by Inventor Shinji Taniguchi

Shinji Taniguchi 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).

  • Publication number: 20190007021
    Abstract: A piezoelectric thin film resonator includes: a substrate; lower and upper electrodes located on the substrate; a piezoelectric film that has a lower piezoelectric film mainly composed of aluminum nitride and an upper piezoelectric film mainly composed of aluminum nitride, the lower piezoelectric film and the upper piezoelectric film being in contact with each other in at least a part of a resonance region where the lower electrode and the upper electrode face each other across at least a part of the piezoelectric film, and a fluorine concentration at a boundary face with which the lower piezoelectric film and the upper piezoelectric film are in contact being 0.03 atomic % or less; and an insulating film that is located between the lower piezoelectric film and the upper piezoelectric film in a region other than the at least a part of the resonance region and contains silicon oxide.
    Type: Application
    Filed: June 14, 2018
    Publication date: January 3, 2019
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Shinji TANIGUCHI, Hiroomi KANEKO, Hiroshi KAWAKAMI, Tokihiro NISHIHARA
  • Patent number: 10110199
    Abstract: An acoustic wave filter includes: series resonators connected in series; and one or more parallel resonators connected in parallel, wherein at least two series resonators and a parallel resonator therebetween are divided into a first divided resonator, which includes a piezoelectric substance sandwiched between a pair of electrodes in a c-axis orientation direction, and a second divided resonator, which includes another piezoelectric substance sandwiched between another pair of electrodes so that the another pair of electrodes in the c-axis orientation direction has an electric potential opposite to that of the electrodes of the first divided resonator in the c-axis orientation direction, a first group including the first divided resonators and a second group including the second divided resonators are interconnected in parallel between two nodes, and the first divided resonators and the second divided resonators of the at least two series resonators are not electrically interconnected at the two nodes.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: October 23, 2018
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Masumi Kida, Tokihiro Nishihara, Yoshio Sato, Shinji Taniguchi, Taisei Irieda
  • Publication number: 20180219528
    Abstract: A piezoelectric thin film resonator includes: a substrate; a piezoelectric film located on the substrate; a lower electrode and an upper electrode facing each other across at least a part of the piezoelectric film; and an insertion film that is inserted between the lower electrode and the upper electrode, is located in an outer peripheral region within a resonance region where the lower electrode and the upper electrode face each other across the piezoelectric film, is located in a region that is located outside the resonance region and surrounds the resonance region, is not located in a center region of the resonance region, and includes a first part, which is located in the resonance region and has a first film thickness, and a second part, which is located outside the resonance region and has a second film thickness, the first film thickness being less than the second film thickness.
    Type: Application
    Filed: January 22, 2018
    Publication date: August 2, 2018
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Jiansong LIU, Tokihiro NISHIHARA, Tsuyoshi YOKOYAMA, Shinji TANIGUCHI, Taisei IRIEDA
  • Publication number: 20180217052
    Abstract: An object is the provision of an optical measuring device that can be carried readily due to its reduced size and that can suppress the incidence of light other than detection light upon a light receiving unit and thus can obtain a measurement result with high accuracy. The optical measuring device includes a first light guiding path forming body having therein a first light guiding path formed by a through hole extending linearly for allowing measurement light from a light source to be incident on a measuring position in which a measurement sample is disposed, and a second light guiding path forming body having therein a second light guiding path formed by a through hole extending linearly for guiding detection light having exited from the measuring position to a light receiving unit.
    Type: Application
    Filed: March 22, 2018
    Publication date: August 2, 2018
    Applicant: Ushio Denki Kabushiki Kaisha
    Inventors: Shinji TANIGUCHI, Kyosuke YAMANE, Kenichi SABATAKE, Naoki GOTO
  • Publication number: 20180175275
    Abstract: A piezoelectric thin film resonator includes: a piezoelectric film located on a substrate; lower and upper electrodes facing each other across a part of the piezoelectric film; and an insertion film located between the lower and upper electrodes, located in a part of an outer peripheral region within a resonance region where the lower and upper electrodes face each other across the piezoelectric film, and not located in a center region of the resonance region, a first width in the resonance region of the insertion film in a first region, where the upper electrode is extracted from the resonance region, being greater than a third width in the resonance region in a third region other than a second region, where the lower electrode is extracted from the resonance region, and the first region, a second width in the resonance region in a second region being the third width or greater.
    Type: Application
    Filed: December 7, 2017
    Publication date: June 21, 2018
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Tokihiro Nishihara, Jiansong Liu, Tsuyoshi Yokoyama, Shinji Taniguchi
  • Patent number: 9929715
    Abstract: An acoustic wave device includes: a piezoelectric film located on a substrate; a lower electrode and an upper electrode facing each other across the piezoelectric film; a temperature compensation film located on a surface, which is opposite to the piezoelectric film, of at least one of the lower electrode and the upper electrode and having a temperature coefficient of elastic constant opposite in sign to a temperature coefficient of elastic constant of the piezoelectric film; and an additional film located on a surface of the temperature compensation film opposite to the piezoelectric film and having an acoustic impedance greater than an acoustic impedance of the temperature compensation film.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: March 27, 2018
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Shinji Taniguchi, Tokihiro Nishihara
  • Publication number: 20180006631
    Abstract: An acoustic wave device includes: a substrate; an acoustic reflection layer located in or on the substrate and including an air gap, or an acoustic mirror; a piezoelectric film located on the acoustic reflection layer; lower and upper electrodes located on the acoustic reflection layer so as to sandwich the piezoelectric film so that resonance regions are located within the acoustic reflection layer and share the acoustic reflection layer, one of the lower and upper electrodes being divided, another one of the lower and upper electrodes being not divided, the lower and upper electrodes facing each other across the piezoelectric film in each of the resonance regions; and an insertion film located between the lower and upper electrodes, located in at least a part of an outer peripheral region of each of the resonance regions, and being not located in a center region of each of the resonance regions.
    Type: Application
    Filed: June 14, 2017
    Publication date: January 4, 2018
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Masumi KIDA, Tokihiro NISHIHARA, Yoshio SATOH, Shinji TANIGUCHI, Taisei IRIEDA
  • Publication number: 20170374359
    Abstract: An object is to manage a plurality of users by displaying a video on a plurality of head mounted displays. A plurality of head mounted display systems are connected to a server, the server including a first communication control unit transmitting image data to the connected head mounted display systems and a generation unit generating new image data according to information relating to visual lines of users transmitted from the head mounted display systems in accordance with the image data and outputting the generated new image data to the first communication control unit, and each of the head mounted display systems including: a display unit displaying the image data supplied from the server; a detection unit detecting a visual line of a user viewing the image data displayed on the display unit; and a second communication control unit transmitting information relating to the visual line detected by the detection unit to the server.
    Type: Application
    Filed: May 30, 2017
    Publication date: December 28, 2017
    Inventors: Shinji Taniguchi, Yamato Kaneko
  • Publication number: 20170366157
    Abstract: A piezoelectric thin film resonator includes: a substrate; a piezoelectric film located on the substrate; lower and upper electrodes facing each other across at least a part of the piezoelectric film; a first insertion layer located between the lower and upper electrodes and located in at least a part of an outer peripheral region within a resonance region in which the lower and upper electrodes face each other across the piezoelectric film, the first insertion layer being not located in a center region of the resonance region; and a second insertion layer located between the lower and upper electrodes and located in at least a part of the outer peripheral region, the second insertion layer being not located in the center region, a position of an edge of the second insertion layer being different from a position of an edge of the first insertion film in the resonance region.
    Type: Application
    Filed: June 7, 2017
    Publication date: December 21, 2017
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Jiansong LIU, Tokihiro NISHIHARA, Shinji TANIGUCHI
  • Publication number: 20170359050
    Abstract: An acoustic wave device includes: a piezoelectric thin film resonator that is connected between a first node and a second node; and a resonant circuit that is connected in parallel with the piezoelectric thin film resonator between the first node and the second node, and has a resonant frequency f0 that meets a condition of 2×fa×0.92?f0 where fa represents an antiresonant frequency of the piezoelectric thin film resonator.
    Type: Application
    Filed: April 26, 2017
    Publication date: December 14, 2017
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Taisei IRIEDA, Yoshio SATOH, Tokihiro NISHIHARA, Shinji TANIGUCHI
  • Patent number: 9787282
    Abstract: A piezoelectric thin film resonator includes: a substrate; a piezoelectric film provided on the substrate; a lower electrode and an upper electrode that sandwich at least a part of the piezoelectric film and face with each other; and an inserted film that is inserted in the piezoelectric film, is provided on an outer circumference region in a resonance region in which the lower electrode and the upper electrode sandwich the piezoelectric film and face with each other, is not provided in a center region of the resonance region, and has a cutout in the resonance region.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: October 10, 2017
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Shinji Taniguchi, Tokihiro Nishihara, Tsuyoshi Yokoyama, Takeshi Sakashita
  • Publication number: 20170271741
    Abstract: An acoustic wave filter includes series resonators and parallel resonators that have a piezoelectric film on an identical substrate and have a lower electrode and an upper electrode, wherein: one of the series resonators and the parallel resonators have a temperature compensation film on a face of the lower electrode or the upper electrode that is opposite to the piezoelectric film in a resonance region, the compensation film having an elastic constant of a temperature coefficient of which sign is opposite to a sign of a temperature coefficient of an elastic constant of the piezoelectric film; and the other have an added film on the same side as the temperature compensation film on the lower electrode side or the upper electrode side compared to the piezoelectric film in the resonance region in the one of the series resonators and the parallel resonators.
    Type: Application
    Filed: June 1, 2017
    Publication date: September 21, 2017
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Tokihiro NISHIHARA, Shinji TANIGUCHI
  • Publication number: 20170257076
    Abstract: A piezoelectric thin film resonator includes: lower and upper electrodes located on a substrate and facing each other; a piezoelectric film sandwiched between the lower and upper electrodes and including lower and upper piezoelectric films, an outer outline of the upper piezoelectric film coinciding with or being located further out than an outer outline of a resonance region in a region surrounding the resonance region, the outer outline of the upper piezoelectric film being located further in than an outer outline of the lower piezoelectric film in the region; an insertion film interposed between the lower and upper piezoelectric films, located in an outer peripheral region within the resonance region, not located in a central region of the resonance region, and located on an upper surface of the lower piezoelectric film in the region; and a protective film located on the upper electrode in the resonance region, and located so as to cover an end face of the upper piezoelectric film and an upper surface of t
    Type: Application
    Filed: January 26, 2017
    Publication date: September 7, 2017
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Hiroomi KANEKO, Hiroshi KAWAKAMI, Shinji TANIGUCHI, Tokihiro NISHIHARA, Tsuyoshi YOKOYAMA
  • Patent number: 9755611
    Abstract: A piezoelectric thin film resonator includes: a substrate; a piezoelectric film provided on the substrate; a lower electrode and an upper electrode that sandwich at least a part of the piezoelectric film and face with each other; and an inserted film that is inserted in the piezoelectric film, is provided on an outer circumference region in a resonance region in which the lower electrode and the upper electrode sandwich the piezoelectric film and face with each other, is not provided in a center region of the resonance region, and has a cutout in the resonance region.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: September 5, 2017
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Shinji Taniguchi, Tokihiro Nishihara, Tsuyoshi Yokoyama, Takeshi Sakashita
  • Patent number: 9748925
    Abstract: A piezoelectric thin film resonator includes: a substrate; a piezoelectric film located on the substrate; a lower electrode and an upper electrode facing each other across at least a part of the piezoelectric film; and an insertion film inserted in the piezoelectric film, located in at least a part of an outer peripheral region within a resonance region where the lower electrode and the upper electrode face each other across the piezoelectric film, and not located in a center region of the resonance region, wherein a difference between a total film thickness of the piezoelectric film and the insertion film in a first region, in which the insertion film is inserted, within the resonance region and a film thickness of the piezoelectric film in a second region, in which the insertion film is not inserted, is less than a film thickness of the insertion film.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: August 29, 2017
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Shinji Taniguchi, Tokihiro Nishihara, Tsuyoshi Yokoyama, Takeshi Sakashita
  • Publication number: 20170244387
    Abstract: A duplexer includes: a first filter connected between a common terminal and a first terminal and including first series and first parallel resonators; a second filter having a passband higher than that of the first filter, connected between the common terminal and a second terminal, and including second series and second parallel resonators; a first chip including the first series and second parallel resonators mounted thereon; a second chip including the first parallel and second series resonators mounted thereon, wherein when GA and HGB represent temperature coefficients of antiresonant frequencies of the first and second series resonators, and HGA and GB represent temperature coefficients of resonant frequencies of the first and second parallel resonators, a magnitude relationship among GA, GB, HGA, and HGB is none of a relationship in which GA (GB) differs from HGA (HGB), and GB (GA) and HGB (HGA) are located between GA (GB) and HGA (HGB).
    Type: Application
    Filed: February 2, 2017
    Publication date: August 24, 2017
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Takashi MATSUDA, Masumi KIDA, Taisei IRIEDA, Tokihiro NISHIHARA, Shinji TANIGUCHI
  • Publication number: 20170214388
    Abstract: An acoustic wave device includes: a first resonator that includes a first piezoelectric substance, and first lower and upper electrodes sandwiching the first piezoelectric substance in a direction of a c-axis orientation or a polarization axis of the first piezoelectric substance; and a second resonator that is located closer to a signal input terminal than the first resonator is, is connected in series to the first resonator, includes a second piezoelectric substance, and second lower and upper electrodes sandwiching the second piezoelectric substance so that an electrode in a direction of the c-axis orientation or a polarization axis of the second piezoelectric substance has an electric potential identical to an electric potential of an electrode of the first resonator in the direction of the c-axis orientation or the polarization axis of the first piezoelectric substance, and has an antiresonant frequency less than an antiresonant frequency of the first resonator.
    Type: Application
    Filed: January 19, 2017
    Publication date: July 27, 2017
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Taisei IRIEDA, Yoshio SATOH, Tokihiro NISHIHARA, Shinji TANIGUCHI, Masumi KIDA
  • Patent number: 9716956
    Abstract: A piezoelectric thin film resonator includes: a lower electrode and an upper electrode facing each other across a piezoelectric film; an insertion film inserted into the piezoelectric film, located in at least a part of an outer peripheral region in a resonance region and outside the outer peripheral region, and not located in a center region of the resonance region; a protective film on the upper electrode and the piezoelectric film; and a wiring line connecting to the lower electrode and covering an outer periphery of the protective film in an extraction region of the lower electrode, wherein in the extraction region, an outer periphery of the insertion film is further out than an outer periphery of the upper electrode and further in than an outer periphery of the piezoelectric film, and the outer periphery of the protective film is further out than the outer periphery of the insertion film.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: July 25, 2017
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Ryuichi Okamura, Hiroshi Kawakami, Hiroomi Kaneko, Shinji Taniguchi, Tsuyoshi Yokoyama
  • Publication number: 20170207768
    Abstract: A piezoelectric thin film resonator includes: an acoustic reflection layer including an air gap or an acoustic mirror; lower and upper electrodes facing each other in a stacking direction, at least a part of each of the lower and upper electrodes being located on or above the acoustic reflection layer; a piezoelectric film sandwiched between the lower and upper electrodes and including lower and upper piezoelectric films, at least a part of an end face of the piezoelectric film in a film thickness direction being located between outer outlines of the resonance region and the acoustic reflection layer in at least a part of a region surrounding a resonance region; and an insertion film inserted between the lower and upper piezoelectric films, located in at least a part of an outer peripheral region within the resonance region, and not located in a center region of the resonance region.
    Type: Application
    Filed: November 21, 2016
    Publication date: July 20, 2017
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Jiansong LIU, Tsuyoshi YOKOYAMA, Hiroomi KANEKO, Shinji TANIGUCHI, Tokihiro NISHIHARA
  • Patent number: 9712135
    Abstract: An acoustic wave filter includes series resonators and parallel resonators that have a piezoelectric film on an identical substrate and have a lower electrode and an upper electrode, wherein: one of the series resonators and the parallel resonators have a temperature compensation film on a face of the lower electrode or the upper electrode that is opposite to the piezoelectric film in a resonance region, the compensation film having an elastic constant of a temperature coefficient of which sign is opposite to a sign of a temperature coefficient of an elastic constant of the piezoelectric film; and the other have an added film on the same side as the temperature compensation film on the lower electrode side or the upper electrode side compared to the piezoelectric film in the resonance region in the one of the series resonators and the parallel resonators.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: July 18, 2017
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Tokihiro Nishihara, Shinji Taniguchi