Patents by Inventor Takashi Yamada

Takashi Yamada 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: 11367997
    Abstract: A method for manufacturing a monolithically integrated semiconductor optical integrated element comprising a DFB laser, an EA modulator, and a SOA disposed in a light emitting direction, comprising the step of forming a semiconductor wafer on which the elements are two-dimensionally arrayed and aligned the optical axes; cleaving the semiconductor wafer along a plane orthogonal to the light emitting direction to form a semiconductor bar including a plurality of the elements arranged one-dimensionally along a direction orthogonal to the light emitting direction such that the elements adjacent to each other share an identical cleavage end face as a light emission surface; inspecting the semiconductor bar by driving the SOA and the DFB laser through a connection wiring part together; and separating out the semiconductor bar after the inspection to cut the connection wiring part connecting the electrode of the SOA and the DFB laser to isolate from each other.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: June 21, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takahiko Shindo, Naoki Fujiwara, Kimikazu Sano, Hiroyuki Ishii, Hideaki Matsuzaki, Takashi Yamada, Kengo Horikoshi
  • Publication number: 20220189132
    Abstract: An image acquisition unit (2) acquires an image obtained by capturing at least eyes of a target person. An object specifying unit (4) specifies an object in a line-of-sight direction of the target person using the acquired image. An incident light amount calculation unit (6) calculates an incident light amount representing an amount of light incident on the eyes of the target person using the acquired image. A reference pupil size determination unit (8) determines a reference pupil size based on the calculated incident light amount. A pupil size calculation unit (10) calculates a pupil size of the target person using the acquired image. An interest determination unit (12) determines an interest of the target person in the object by comparing the determined reference pupil size with the calculated pupil size.
    Type: Application
    Filed: March 26, 2019
    Publication date: June 16, 2022
    Applicant: NEC Corporation
    Inventors: Masato TSUKADA, Hiroshi IMAI, Chisato FUNAYAMA, Yuka OGINO, Ryuichi AKASHI, Keiichi CHONO, Emi INUI, Yasuhiko YOSHIDA, Hiroshi YAMADA, Shoji YACHIDA, Takashi SHIBATA
  • Patent number: 11342299
    Abstract: The present invention has as its object the provision of a bonding wire for semiconductor devices mainly comprised of Ag, in which bonding wire for semiconductor devices, the bond reliability demanded for high density mounting is secured and simultaneously a sufficient, stable bond strength is realized at a ball bond, no neck damage occurs even in a low loop, the leaning characteristic is excellent, and the FAB shape is excellent. To solve this problem, the bonding wire for semiconductor devices according to the present invention contains one or more of Be, B, P, Ca, Y, La, and Ce in a total of 0.031 at % to obtain a 0.180 at %, further contains one or more of In, Ga, and Cd in a total of 0.05 at % to 5.00 at %, and has a balance of Ag and unavoidable impurities.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: May 24, 2022
    Assignees: NIPPON MICROMETAL CORPORATION, NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
    Inventors: Daizo Oda, Takumi Ohkabe, Teruo Haibara, Takashi Yamada, Tetsuya Oyamada, Tomohiro Uno
  • Publication number: 20220152749
    Abstract: There is provided an Al bonding wire which can provide a sufficient bonding reliability of bonded parts of the bonding wire under a high temperature state where a semiconductor device using the Al bonding wire is operated. The bonding wire is composed of Al or Al alloy, and is characterized in that an average crystal grain size in a cross-section of a core wire in a direction perpendicular to a wire axis of the bonding wire is 0.01 to 50 ?m, and when measuring crystal orientations on the cross-section of the core wire in the direction perpendicular to the wire axis of the bonding wire, a crystal orientation <111> angled at 15 degrees or less to a wire longitudinal direction has a proportion of 30 to 90% among crystal orientations in the wire longitudinal direction.
    Type: Application
    Filed: March 12, 2020
    Publication date: May 19, 2022
    Inventors: Takashi YAMADA, Akihito NISHIBAYASHI, Teruo HAIBARA, Daizo ODA, Motoki ETO, Tetsuya OYAMADA, Takayuki KOBAYASHI, Tomohiro UNO
  • Publication number: 20220157766
    Abstract: There is provided a metal-coated Al bonding wire which can provide a sufficient bonding reliability of bonded parts of the bonding wire under a high temperature state where a semiconductor device using the metal-coated Al bonding wire is operated. The bonding wire includes a core wire of Al or Al alloy, and a coating layer of Ag, Au or an alloy containing them formed on the outer periphery of the core wire, and the bonding wire is characterized in that when measuring crystal orientations on a cross-section of the core wire in a direction perpendicular to a wire axis of the bonding wire, a crystal orientation <111> angled at 15 degrees or less to a wire longitudinal direction has a proportion of 30 to 90% among crystal orientations in the wire longitudinal direction. Preferably, the surface roughness of the wire is 2 ?m or less in terms of Rz.
    Type: Application
    Filed: March 12, 2020
    Publication date: May 19, 2022
    Inventors: Takashi YAMADA, Akihito NISHIBAYASHI, Teruo HAIBARA, Daizo ODA, Motoki ETO, Tetsuya OYAMADA, Takayuki KOBAYASHI, Tomohiro UNO
  • Patent number: 11336234
    Abstract: A power amplifier circuit includes a power amplifier that amplifies an input signal and outputs the amplified signal from an output terminal thereof, a first filter circuit that has a frequency characteristic that attenuates an Nth-order harmonic of the amplified signal, N that is an integer greater than or equal to 2, and a second filter circuit that has a frequency characteristic that attenuates the Nth-order harmonic of the amplified signal. The first filter circuit includes a first capacitor and a first inductor. The first capacitor and the first inductor are connected in series between the output terminal and ground. The second filter circuit includes a second capacitor and a second inductor. The second capacitor and the second inductor are connected in series between the output terminal and ground.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: May 17, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takashi Yamada, Yuuri Honda, Satoshi Tanaka
  • Publication number: 20220147901
    Abstract: Related information acquiring unit acquires related information related to a facility to be inspected. Related information acquiring unit acquires shape information indicating the shape of a facility as related information. Required skill determining unit determines, when inspection data regarding the facility is acquired by causing drone to make a flight around the facility, a required skill needed to operate drone. Required skill determining unit determines the required skill regarding the facility based on the acquired related information regarding the facility. Required skill determining unit makes determination such that, the higher the level of complexity of a flight route along the shape of the facility that is represented by the acquired related information is, the higher the required skill is. Operation plan generating unit generates an operation plan for causing drone to make a flight while visiting facilities for which the level of the determined skill is the same.
    Type: Application
    Filed: March 16, 2020
    Publication date: May 12, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Syuusuke WATANABE, Tadashige NAGAE, Mitsuteru FUKUYAMA, Masakazu HAMANO, Takefumi YAMADA, Takashi HARA, Yuichiro SEGAWA, Yasuhiro KITAMURA
  • Publication number: 20220148860
    Abstract: A plasma processing apparatus includes a chamber; a substrate support having a lower electrode, an electrostatic chuck, and a heater; a radio frequency power supply; a DC power supply; a first controller; and a second controller. The first controller controls the radio frequency power supply to supply a pulsed radio frequency power to the lower electrode periodically with a cycle defined by a first frequency, and controls the DC power supply to apply a pulsed negative voltage to the edge ring periodically with the cycle. The second controller includes a heater controller that controls the power by obtaining a resistance value of the heater from sample values of a current and a voltage supplied to the heater. The first frequency is different from a second frequency that is a sampling frequency of the sample value of the current and the sample value of the voltage in the second controller.
    Type: Application
    Filed: January 27, 2022
    Publication date: May 12, 2022
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kazuhito YAMADA, Hiraki ENDO, Takashi SATO
  • Publication number: 20220148435
    Abstract: Time slot specifying unit reads out facility information of a facility to be inspected (specifically, a base station ID of a base station whose previous inspection day is included in a past predetermined period) from facility information storage unit. Daytime information acquiring unit acquires daytime information at positions at which base stations to be inspected are installed. Time slot specifying unit specifies non-backlight time slots based on the read-out facility information and the acquired daytime information. Operation plan generating unit generates an operation plan of drone in which facilities are shot in the specified non-backlight time slots. Operation plan outputting unit outputs the generated operation plan.
    Type: Application
    Filed: March 16, 2020
    Publication date: May 12, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Syuusuke WATANABE, Tadashige NAGAE, Mitsuteru FUKUYAMA, Masakazu HAMANO, Takefumi YAMADA, Takashi HARA, Yuichiro SEGAWA, Yasuhiro KITAMURA
  • Publication number: 20220140369
    Abstract: A fuel cell system includes: an upstream side flow path forming a flow path from an oxidation gas supply apparatus toward a fuel cell; and a downstream side flow path forming a flow path from the fuel cell toward an atmosphere. The fuel cell system includes: an oxidation gas pressure sensor that measures a pressure inside the upstream side flow path; and a controller that can execute a water content estimation mode of estimating a water content in an oxidation gas flow path including the fuel cell. The controller includes: a water content calculation unit that calculates the water content in the oxidation gas flow path including the fuel cell on a basis of an oxidation gas flow rate and an oxidation gas pressure loss.
    Type: Application
    Filed: January 13, 2022
    Publication date: May 5, 2022
    Inventors: Takashi YAMADA, Kentarou FUKUDA, Ryosuke YAMADA
  • Publication number: 20220120965
    Abstract: An object is to improve crosstalk between ports while keeping an interposer circuit small. In an interposer circuit that includes a first surface connected to an optical circuit, a second surface that is connected to a fiber block and is located opposite to the first surface in parallel with the first surface, and a plurality of connection waveguides connected to a plurality of input/output waveguides included in the optical circuit and a plurality of input/output fibers included in the fiber block, the connection waveguides each have a straight shape, and an angle (?) formed between the first surface and each of the connection waveguides is the same as an angle (?) formed between the second surface and each of the connection waveguides.
    Type: Application
    Filed: January 24, 2020
    Publication date: April 21, 2022
    Inventors: Yuichiro Ikuma, Yusuke Nasu, Manabu Oguma, Takashi Yamada
  • Patent number: 11305270
    Abstract: A honeycomb structure prevents catalyst slurry from leaching out when applying a wash coat for making a catalyst supported, ensuring air permeability of the outer portion and in which there is no occurrence of cracking when used as a gasoline particulate filter. The honeycomb structure having: a honeycomb substrate composed of porous partition walls forming a plurality of cells and a porous outer portion; and a resin composition on the outer portion of the honeycomb substrate, wherein the outer portion and the partition walls of the honeycomb substrate are formed of the same material; a porosity of the honeycomb structure is 50% or more; and the resin composition is impregnated into pores of the whole outer portion; and the impregnation depth is equal to the outer portion thickness or a part of the resin composition is impregnated deeper than the outer portion and reaches the cell partition walls.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: April 19, 2022
    Assignee: N.E. CHEMCAT CORPORATION
    Inventors: Takashi Yamada, Shingo Ishikawa, Yoshinori Takahashi, Kazuhiro Sekiyama
  • Publication number: 20220108971
    Abstract: Bonding wire for semiconductor devices contains one or more of Be, B, P, Ca, Y, La, and Ce in a total of 0.031 at % to obtain a 0.180 at %, further contains one or more of In, Ga, and Cd in a total of 0.05 at % to 5.00 at %, and has a balance of Ag and unavoidable impurities. Due to this, it is possible to obtain a bonding wire for semiconductor devices sufficiently forming an intermetallic compound layer at a ball bond interface to secure the bond strength of the ball bond, not causing neck damage even in a low loop, having a good leaning characteristic, and having a good FAB shape.
    Type: Application
    Filed: December 16, 2021
    Publication date: April 7, 2022
    Inventors: Daizo ODA, Takumi OHKABE, Teruo HAIBARA, Takashi YAMADA, Tetsuya OYAMADA, Tomohiro UNO
  • Publication number: 20220097088
    Abstract: A dispenser includes a housing having a depression; an elastically deformable lid section covering an opening of the depression and forming a pump chamber together with the depression; a pressing portion arranged facing the lid section on the outside of the pump chamber, capable of pressing the lid section to a side where the volume of the pump chamber decreases, and provided to be able to enter the inside of the depression while pressing the lid section for elastic deformation; an outlet causing a liquid material inside the pump chamber to flow out toward a discharging opening when the pressing portion presses the lid section; and an inlet provided separately from the outlet and causing the liquid material to flow into the pump chamber when the pressing to the lid section by the pressing portion is released.
    Type: Application
    Filed: February 5, 2020
    Publication date: March 31, 2022
    Applicant: Kao Corporation
    Inventors: Takashi YAMADA, Kazuyuki UEHARA
  • Patent number: 11237334
    Abstract: A fiber module (1B) according to the present disclosure includes an input-side optical fiber (11), an output-side optical fiber (12), a ferrule (20) in which the input-side optical fiber and the output-side optical fiber are insertable in both ends and a groove (32) is formed in a direction orthogonal to a longitudinal direction (D1) in the middle of the longitudinal direction, a dielectric multilayer film filter (30) inserted in the groove, and an input-side GI fiber (15) and an output-side GI fiber (16) joined by fusion to respective terminal portions of the input-side optical fiber and the output-side optical fiber. The dielectric multilayer film filter is interposed between an end surface (15f) of the input-side GI fiber and an end surface (16f) of the output-side GI fiber in the longitudinal direction.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: February 1, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kengo Horikoshi, Takashi Yamada, Hisao Yoshinaga, Shunsuke Kanai, Manabu Kubota
  • Publication number: 20220009525
    Abstract: Provided are a reservation information acquisition section of acquiring reservation information indicating a reservation condition for reservation of the first mobile object, an arrival determination section of determining whether the first mobile object can arrive at the position indicated by the reservation information by the time indicated by the reservation information, an arrangement section of determining to move the second mobile object different from the first mobile object to the position indicated by the reservation information in a case where it is determined that the first mobile object cannot arrive at the position indicated by the reservation information by the time indicated by the reservation information, and a consideration determination section of determining a condition regarding a consideration for the use of the second mobile object.
    Type: Application
    Filed: September 27, 2021
    Publication date: January 13, 2022
    Inventors: Wataru AIKO, Kazunori TOKUNAGA, Mafuyu KOSEKI, Takashi YAMADA, Toshiaki TAKANO, Satoshi ONODERA
  • Publication number: 20220009504
    Abstract: In an information processing apparatus for managing or controlling a moving body used by a user based on a predetermined use condition, the moving body is configured to be switchable between an automatic driving mode and a manual driving mode, and the information processing apparatus comprises a use condition acquisition section for acquiring information related to the use condition of the moving body, a switch command acquisition section for acquiring a switch command for switching a driving mode of the moving body, and a switch judgment section for judging permission/prohibition of switching of the driving mode indicated by the switch command, based on the use condition of the moving body.
    Type: Application
    Filed: September 27, 2021
    Publication date: January 13, 2022
    Inventors: Kazunori TOKUNAGA, Mafuyu KOSEKI, Takashi YAMADA, Toshiaki TAKANO, Satoshi ONODERA
  • Patent number: 11220292
    Abstract: A vehicle rear structure includes: a rear sideframe disposed on either side in a rear of a vehicle body; and a rear subframe disposed under the rear sideframe, wherein a rear end of the rear subframe is disposed at the same position in the longitudinal direction as, or at a position posterior to, a rear end of the rear sideframe. The vehicle rear structure has better performance in transmitting an impact load at a rear impact with a vehicle than ever, to further improve performance in absorbing impact energy.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: January 11, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Ukyo Watanabe, Takashi Yamada, Satoru Noguchi, Takehiko Koshiishi
  • Publication number: 20210397400
    Abstract: An image display system causes a plurality of image display devices having different device characteristics to respectively display images. The image display system includes an external light detection device that detects external light and an image adjustment device that performs adjustment to make at least one of contrast, chromaticity, and luminance continuous between the images displayed on the plurality of image display devices, the adjustment being performed based on the device characteristics and the detected external light.
    Type: Application
    Filed: September 3, 2021
    Publication date: December 23, 2021
    Inventors: Yoshito TANAKA, Takashi YAMADA, Daizaburo MATSUKI, Yoshinori OKAZAKI
  • Publication number: 20210400230
    Abstract: The video display system includes a plurality of display devices having mutually different display delay times and a video conversion device that divides an input integrated video signal into a plurality of video signals and respectively outputs the plurality of video signals to the plurality of display devices. At least one of the plurality of video signals is output in a delayed state to make a difference between display timings of the plurality of videos respectively displayed on the plurality of display devices substantially zero, based on the display delay times.
    Type: Application
    Filed: September 3, 2021
    Publication date: December 23, 2021
    Inventors: Yoshinori OKAZAKI, Yoshito TANAKA, Takashi YAMADA, Daizaburo MATSUKI, Yoshifumi KAWAGUCHI