Patents by Inventor Hiroshi Hamada

Hiroshi Hamada 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: 20230294161
    Abstract: A pressed article includes a main body, a recess portion, a pin, and a groove portion. The main body has a plate shape. The recess portion is provided in a first surface of the main body facing one side in a plate thickness direction of the main body. The pin is provided at a position corresponding to the recess portion on a side of a second surface opposite to the first surface of the main body, is formed to have an outer shape smaller than that of the recess portion when viewed in the plate thickness direction of the main body, and protrudes in the plate thickness direction of the main body. The groove portion is recessed from the second surface of the main body toward the first surface and is provided to surround at least a part of the periphery of the pin.
    Type: Application
    Filed: May 22, 2023
    Publication date: September 21, 2023
    Inventors: Hiroshi SHOHARA, Kosuke NIIMI, Masayuki HAMADA
  • Publication number: 20230274862
    Abstract: A thin-film resistive element includes: a first electrode that is formed with a conductor formed in an annular shape in a planar view; a second electrode that is formed with a conductor disposed at a distance from the first electrode in a region surrounded by the first electrode; and a thin-film resistor that is electrically connected to the first electrode and the second electrode.
    Type: Application
    Filed: August 3, 2020
    Publication date: August 31, 2023
    Inventors: Hiroshi Hamada, Hideyuki Nosaka
  • Publication number: 20230198472
    Abstract: An amplifier circuit includes source-grounded amplifiers and a neutralization circuit that is connected between drain terminals and gate terminals of the source-grounded amplifiers and neutralizes a feedback capacitance of the source-grounded amplifiers, and the neutralization circuit includes transmission lines and a capacitor connected in series.
    Type: Application
    Filed: November 16, 2020
    Publication date: June 22, 2023
    Inventors: Hiroshi Hamada, Hideyuki Nosaka
  • Publication number: 20230174390
    Abstract: The present invention relates to a method of controlling a fresh-water production apparatus for treating a raw water in stages by N-stage (N is a natural number of 2 or larger) water treatment methods, the method including: a filtration-characteristic prediction step; a filtration-characteristic deviation assessment step; a filtration-characteristic deviation assessment step; a cyclic prediction calculation step; a control condition recording step; a cyclic prediction calculation step; and a control condition recording step, in which the fresh-water production apparatus is controlled on the basis of the control condition recording step for the (n?1)-th stage water treatment method and the control condition recording step for the n-th stage water treatment method.
    Type: Application
    Filed: February 12, 2021
    Publication date: June 8, 2023
    Applicant: Toray Industries, Inc.
    Inventors: Kazunori Tomioka, Kazuki Hagawa, Hiroshi Hamada
  • Publication number: 20230130741
    Abstract: Stub conductors are disposed so as to surround an outer periphery of a patch conductor and be spaced from the patch conductor with a gap positioned between the stub conductors and the patch conductor.
    Type: Application
    Filed: April 20, 2020
    Publication date: April 27, 2023
    Applicant: Nippon Telegraph and Telephone Corporation
    Inventors: Go Itami, Hiroshi Hamada, Hideyuki Nosaka
  • Publication number: 20230121715
    Abstract: The present invention provides a fresh water generator operating method and a determination program that are employed in a method for cleaning a separation membrane module following membrane filtration, and that, while various cleaning steps such as reverse pressure cleaning, air cleaning, chemical solution cleaning are taking place after completion of the membrane filtration, determines cleaning troubles by calculating a temporal change in resistance increase rate on the basis of an increase in membrane differential pressure.
    Type: Application
    Filed: March 26, 2021
    Publication date: April 20, 2023
    Applicant: Toray Industries, Inc.
    Inventors: Kazuki Hagawa, Kazunori Tomioka, Hiroshi Hamada
  • Publication number: 20230095671
    Abstract: A vibration generating device includes: a vibrator; and a piezoelectric actuator. The vibrator has a first main surface and a second main surface on a side opposite to the first main surface. The piezoelectric actuator is joined to the second main surface. A plurality of recessions and projections is formed at equal intervals on the first main surface. The vibration generating device is configured to be capable of presenting a haptic sensation while preventing a contact sound from being generated.
    Type: Application
    Filed: March 1, 2021
    Publication date: March 30, 2023
    Inventors: Fumihisa ITO, Yukihiro MATSUI, Hiroshi HAMADA
  • Publication number: 20230072390
    Abstract: A semiconductor light-receiving element, includes: a semiconductor substrate; a high-concentration layer of a first conductivity type formed on the semiconductor substrate; a low-concentration layer of the first conductivity type formed on the high-concentration layer of the first conductivity type and in contact with the high-concentration layer of the first conductivity type; a low-concentration layer of a second conductivity type configured to form a PN junction interface together with the low-concentration layer of the first conductivity type; and a high-concentration layer of the second conductivity type formed on the low-concentration layer of the second conductivity type and in contact with the low-concentration layer of the second conductivity type. The low-concentration layers have a carrier concentration of less than 1×1016/cm3. The high-concentration layers have a carrier concentration of 1×1017/cm3 or more.
    Type: Application
    Filed: October 17, 2022
    Publication date: March 9, 2023
    Inventors: Takashi TOYONAKA, Hiroshi Hamada, Shigehisa Tanaka
  • Publication number: 20230056093
    Abstract: A breathing sound measurement device includes a measurement section configured to be brought into contact with a skin of a front neck of a subject and measure breathing sound of the subject and a wearing section configured to have a first end connected to the measurement section and have elasticity to extend in a circular arc shape along an outer circumference of the subject's neck. The wearing section has a second end provided with a pressing portion configured to be pressed against a skin of a rear neck opposite a right front neck with respect to a midpoint between right and left halves of the subject's neck.
    Type: Application
    Filed: February 3, 2021
    Publication date: February 23, 2023
    Applicant: ONEA CO., LTD.
    Inventors: Fumio OGAWA, Teruya KAMURA, Takuo OHTUJI, Masaru OCHI, Kenji OHKOSHI, Hiroyasu KUZUHARA, Hiroshi HAMADA
  • Publication number: 20230038341
    Abstract: A permittivity measuring method includes measuring a set of phases at sampling frequencies of at least three points in each of a first-half portion and a second-half portion of a phase characteristic of electromagnetic waves that passed through a measurement target, if the mode of the phase changes of both sets of phases belongs to a phase group in which change of the at least three points in the first half and change of at least three points in the second half are both monotonic change, maximal values, or minimal values, calculating the permittivity using the phase slope of the phases in the first-half portion and the phases in the second-half portion, and if the mode of the phase changes does not belong to the phase group, calculating the permittivity by fitting the phases of either the first half or the second half to a quadratic function.
    Type: Application
    Filed: December 20, 2019
    Publication date: February 9, 2023
    Inventors: Teruo Jo, Hiroshi Hamada, Hideyuki Nosaka
  • Patent number: 11571712
    Abstract: Provided is a vibration panel including an inner member, a first outer member, a second outer member, a piezoelectric actuator, an actuator bonding layer, and a filler. The inner member includes first and second main surfaces. The first outer member includes third and fourth main surfaces, the third main surface including a first region and a second region. The second outer member includes fifth and sixth main surfaces, the fifth main surface including a third region and a fourth region. The piezoelectric actuator causes vibration. The actuator bonding layer is disposed between the piezoelectric actuator and the second region and bonds the piezoelectric actuator to the second region. The filler fills a space between the second region and the fourth region and covers the piezoelectric actuator.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: February 7, 2023
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Shigeo Ishii, Fumihisa Ito, Yukihiro Matsui, Hiroshi Hamada
  • Patent number: 11557712
    Abstract: A vibration generating device 10 includes: a diaphragm 11; and a first piezoelectric actuator 12 and a second piezoelectric actuator 13 attached on an upper surface 11a and a lower surface 11b of the diaphragm 11, respectively, so as to sandwich the diaphragm 11 therebetween in a vicinity of an end surface of the diaphragm 11, wherein, in a top view of the upper surface 11a of the diaphragm 11, the first piezoelectric actuator 12 is disposed at a position shifted with respect to the second piezoelectric actuator 13.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: January 17, 2023
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Hiroshi Hamada, Yukihiro Matsui, Fumihisa Ito, Takashi Tomita
  • Publication number: 20220393357
    Abstract: Arranged on a surface of a substrate are a patch conductor that radiates an electromagnetic field having been fed, a feed line that feeds the patch conductor with the electromagnetic field having been input, two slits parallel to the feed line on both sides of a connection part of the feed line toward an inner side of the patch conductor, and a ring conductor at a space from the patch conductor with an interposition of a gap to surround an outer periphery of the patch conductor. Accordingly, an electric capacitance can be formed between the patch conductor and the ring conductor, and when achieving impedance matching with the feed line, adjustment can be performed using the size of the ring conductor and the gap.
    Type: Application
    Filed: October 31, 2019
    Publication date: December 8, 2022
    Inventors: Go Itami, Hiroshi Hamada, Hideyuki Nosaka
  • Publication number: 20220349655
    Abstract: A heat exchanger includes tubes arranged side by side, and a tank connected to ends of the tubes. The heat exchanger performs heat exchange between a first fluid flowing inside the tubes and a second fluid flowing outside the tubes. The heat exchanger includes a closing member disposed inside the tank and partially closing an opening provided at an end of a predetermined tube that is at least one of the tubes. The predetermined tube has a protrusion formed at the end of the predetermined tube. The closing member has an avoiding structure that avoids interference between the protrusion and the closing member.
    Type: Application
    Filed: July 18, 2022
    Publication date: November 3, 2022
    Inventors: Shota CHATANI, Hiroshi HAMADA, Mitsugu NAKAMURA, Tomohiko NAKAMURA, Ichio KAMEI
  • Patent number: 11490549
    Abstract: A high-frequency module includes: a chassis which is made of a conductor and which has an internal space; a high-frequency circuit board which is housed in the internal space of the chassis; and a resistive element provided between an inner wall that opposes the high-frequency circuit board among inner walls of the chassis which define the internal space and the high-frequency circuit board.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: November 1, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hiroshi Hamada, Hideyuki Nosaka
  • Patent number: 11478821
    Abstract: A vibration generating device 90 includes: a housing 30 in a rectangular shape as viewed in a first direction, the housing 30 comprising: a first support portion 31 extending along a first side in a second direction perpendicular to the first direction and; a second support portion 32 extending along a second side opposite to the first side in the second direction; a panel 60 supported by the first support portion and the second support portion; and a piezoelectric element 11 attached to the panel in such a manner as to be shifted in the second direction toward the first side with respect to a central portion of the panel, wherein a width in the second direction of a portion of the panel supported by the first support portion is larger than a width in the second direction of a portion of the panel supported by the second support portion.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: October 25, 2022
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Hiroshi Hamada, Yukihiro Matsui, Fumihisa Ito, Takashi Tomita
  • Publication number: 20220333875
    Abstract: A heat exchanger includes tubes, a tank, and a prevention plate arranged inside the tank and contacting end surfaces of the tubes to prevent heat medium from flowing into the tubes in a certain region. Flow paths are formed in each tube and arranged in a width direction of the tube. The prevention plate includes a deformable portion elastically deformable by contacting an edge of the opening at a time of inserting the prevention plate into the tank from the opening. The deformable portion of the prevention plate that has been inserted into the tank is restored and receives a reaction force from an inner surface of the tank such that the prevention plate is shifted along the width direction by the reaction force.
    Type: Application
    Filed: July 5, 2022
    Publication date: October 20, 2022
    Inventors: Hiroshi HAMADA, Tomohiko NAKAMURA, Ichio KAMEI, Shota CHATANI
  • Patent number: 11476382
    Abstract: A semiconductor light-receiving element, includes: a semiconductor substrate; a high-concentration layer of a first conductivity type formed on the semiconductor substrate; a low-concentration layer of the first conductivity type formed on the high-concentration layer of the first conductivity type and in contact with the high-concentration layer of the first conductivity type; a low-concentration layer of a second conductivity type configured to form a PN junction interface together with the low-concentration layer of the first conductivity type; and a high-concentration layer of the second conductivity type formed on the low-concentration layer of the second conductivity type and in contact with the low-concentration layer of the second conductivity type. The low-concentration layers have a carrier concentration of less than 1×1016/cm3. The high-concentration layers have a carrier concentration of 1×1017/cm3 or more.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: October 18, 2022
    Assignee: Lumentum Japan, Inc.
    Inventors: Takashi Toyonaka, Hiroshi Hamada, Shigehisa Tanaka
  • Patent number: 11451253
    Abstract: A digital signal process unit includes a first cancel signal generation unit and a second cancel signal generation unit. The first cancel signal generation unit generates, as a first cancel signal component, a cancel signal component corresponding to an image signal included in an analog signal output from a mixer. The second cancel signal generation unit generates, as a second cancel signal component, a cancel signal component corresponding to a leakage signal generated between an input and output of the mixer. The digital signal process unit includes subtractors for subtracting the first cancel signal component and the second cancel signal component from a signal component corresponding to a frequency band divided from an input signal to obtain a digital signal.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: September 20, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Teruo Jo, Munehiko Nagatani, Hiroshi Hamada, Hiroyuki Fukuyama, Hideyuki Nosaka, Hiroshi Yamazaki
  • Patent number: 11430940
    Abstract: A multilayer piezoelectric element includes a ceramic base body, a pair of external electrodes, multiple internal electrodes, and surface electrodes. The pair of external electrodes cover a pair of end faces and extend from the pair of end faces along a pair of principal faces and a pair of side faces. The multiple internal electrodes are stacked inside the ceramic base body along the thickness direction, and are connected alternately to one or the other of the pair of external electrodes along the thickness direction. The surface electrodes extend from the pair of external electrodes along the pair of principal faces, and are each divided in the longitudinal direction at a position near, of the pair of external electrodes, the external electrode to which the internal electrode adjacent to the principal face is connected.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: August 30, 2022
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Sumiaki Kishimoto, Hiroshi Hamada, Hiroyuki Shimizu, Yukihiro Matsui, Tomohiro Harada, Yukihiro Konishi