Patents by Inventor Takeshi Tanaka

Takeshi Tanaka 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: 11929721
    Abstract: A power amplifier module includes a first amplifier, a power splitter, a second amplifier, a third amplifier, a phase shifter, a combining unit, and a controller. The first amplifier amplifies a first signal and outputs a second signal. The power splitter splits the second signal into a third signal and a fourth signal. The second amplifier amplifies the third signal and outputs a fifth signal. The third amplifier amplifies the fourth signal and outputs a sixth signal. The phase shifter receives the fifth signal and shifts a phase of the fifth signal. The combining unit combines the fifth signal having the phase shifted by the phase shifter and the sixth signal and outputs an amplified signal of the second signal. The controller outputs a first control signal for controlling a power level of the sixth signal output from the third amplifier.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: March 12, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Satoshi Tanaka, Yoshiaki Sukemori, Takeshi Kogure, Shohei Imai
  • Patent number: 11921449
    Abstract: A fixing apparatus includes a fixing belt, a slide member, an opposing member, and a retaining member. The retaining member includes, in a groove portion, a bottom surface portion that is in contact with an opposite surface of the slide member from a slide surface, a side surface portion that is formed on a downstream side of the groove portion in a conveyance direction and intersecting the bottom surface portion, and a continuous portion that is formed between the bottom surface portion and the side surface portion. The slide member includes an abutment portion configured to abut against the side surface portion at a position downstream from a downstream edge of the opposite surface when the slide member is slidden against the fixing belt such that the downstream edge of the opposite surface is positioned upstream from the continuous portion in the conveyance direction.
    Type: Grant
    Filed: February 16, 2023
    Date of Patent: March 5, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kenichi Tanaka, Youichi Chikugo, Hidekazu Tatezawa, Rikiya Takemasa, Takeshi Kozuma, Mikihiko Watanabe, Taku Ashida
  • Publication number: 20240066936
    Abstract: A coil spring includes a wire rod including a round section portion and a flat section portion. The round section portion includes a first cross section whose cross section is round. The flat section portion includes a second cross section that is flat. The second cross section has a width greater than or equal to the diameter of the first cross section and a thickness less than the width. A polar moment of inertia of area of the second cross section is smaller than that of the first cross section. A variable section portion is formed between the round section portion and the flat section portion. The variable section portion changes its cross section from circular to flat from the round section portion towards the flat section portion.
    Type: Application
    Filed: October 25, 2023
    Publication date: February 29, 2024
    Applicant: NHK SPRING CO., LTD.
    Inventors: Shinichi NISHIZAWA, Takeshi FURUSE, Senri MORIYAMA, Yusuke TANAKA
  • Patent number: 11912826
    Abstract: Provided is a fiber-reinforced thermoplastic resin prepreg which exhibits high interfacial adhesion between reinforcement fibers and a matrix resin, while having excellent interlaminar fracture resistance. The fiber-reinforced thermoplastic resin prepreg of the present invention comprises: a matrix resin comprising a polyarylketone resin and a polyetherimide resin; and a carbon fiber, wherein the polyetherimide resin in the matrix resin comprises a polyetherimide resin having a structural unit represented by Formula (1), an amount of the polyetherimide resin in the matrix resin (100% by mass) is 3% by mass to 25% by mass, and an amount of the polyarylketone resin in the matrix resin (100% by mass) is 75% by mass or more.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: February 27, 2024
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takahiro Hayashi, Takeshi Ishikawa, Kouichiro Taniguchi, Kazuya Tanaka, Masayasu Hasuike
  • Patent number: 11911846
    Abstract: Provided is a work processing apparatus configured so that limitations on the contents of processing for a work piece or the type of work piece can be reduced and processing for a wider range of processing contents and work piece can be performed. In a work processing apparatus 100, a work table 101 is, through a table displacement mechanism 103, supported on a rotation base 120 to be rotatably driven by a table rotary drive motor 125, and a weight holding tool 110 is supported on the rotation base 120 through a weight displacement mechanism 114. The table displacement mechanism 103 includes a rack-and-pinion mechanism configured to displace the work table 101 in an X-axis direction as viewed in the figure. At the table displacement mechanism 103, a power inputter 108 configured to input drive force from a table displacement mechanism drive apparatus 130 is provided.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: February 27, 2024
    Assignee: ENSHU LIMITED
    Inventors: Koutaro Matsumoto, Kenzo Tanaka, Takeshi Muraki, Kazushige Morozumi, Yoshimichi Uda, Daiki Ishizuka
  • Patent number: 11906461
    Abstract: Provided is a means for promoting electron transfer between nanocarbon and other substances. An electron transfer accelerator for nanocarbon comprising a compound having an aromatic ring Skelton.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: February 20, 2024
    Assignees: TOYOBO CO., LTD., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Katsumi Tsuji, Keizo Yoneda, Atsushi Sogabe, Atsunori Hiratsuka, Hitoshi Muguruma, Hisanori Iwasa, Takeshi Tanaka, Kouhei Orihara
  • Patent number: 11885043
    Abstract: An acrylic fiber for artificial hair may include an acrylic copolymer. The acrylic fiber has a fiber cross section including 2 to 4 T-shaped protrusions that extend radially from a central portion. Each of the T-shaped protrusions has an arc-shaped upper side that bulges in a direction away from the central portion. A circumradius of the fiber cross section is 40.0 to 60.0 ?m. A distance between adjacent end portions of the corresponding upper sides of the adjacent T-shaped protrusions is 3.0 to 60.0 ?m. An axial width is 10.0 ?m or more. Torsional rigidity of the acrylic fiber is 0.30 to 2.0 mg·cm2. The acrylic fiber for artificial hair has high volume, good texture, and good twist processability, and a hair ornament may include the acrylic fiber for artificial hair.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: January 30, 2024
    Assignee: KANEKA CORPORATION
    Inventors: Megumi Yoshikawa, Takao Michinobu, Takeshi Tanaka
  • Publication number: 20230377375
    Abstract: A motion visualization system 1 includes a skeleton recognition program 2 obtaining joint coordinates of a target person, a pitch extraction program 6 extracting a walk cycle of the target person based on the joint coordinates, and a storage unit 106 storing a skeleton normalization program 3 transforming coordinates of the joint coordinates in a reference coordinate system where a direction in which a predetermined portion of the target person moves is set as an axis of a traveling direction in one walk cycle extracted and transforming the joint coordinates based on information on the target person.
    Type: Application
    Filed: October 4, 2021
    Publication date: November 23, 2023
    Inventors: Takeshi TANAKA, Daisuke FUKUI, Hiromitsu NAKAGAWA, Takashi TOYOMURA
  • Patent number: 11778699
    Abstract: A heater (1a) includes a support (10) made of an organic polymer and having a sheet shape, a heating element (20), and at least one pair of power supply electrodes (30) in contact with the heating element (20). The heating element (20) is a transparent conductive film made of a polycrystalline material containing indium oxide as a main component. In the heater (1a), the heating element (20) has a specific resistance of 1.4×10?4 ?·cm to 3×10?4 ?·cm. The heating element (20) has a thickness of more than 20 nm and not more than 100 nm.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: October 3, 2023
    Assignee: NITTO DENKO CORPORATION
    Inventors: Toshihiro Tsurusawa, Takeshi Tanaka, Yosuke Nakanishi, Kyotaro Yamada, Hironobu Machinaga
  • Publication number: 20230303086
    Abstract: A driving assistance method of assisting driving of a vehicle, includes, by a computer, acquiring biological information of a driver who is driving the vehicle, acquiring environment information of the driver, acquiring operation information of the driver, generating biological index data from the biological information, generating integrated information by aligning and combining time series of the biological index data, the environment information, and the operation information, calculating accident risk information after a predetermined time, by inputting the integrated information to an accident risk prediction model set in advance, and calculating factor information of the accident risk information by inputting the accident risk information, the integrated information, and accident risk judge information set in advance to a factor calculation model set in advance.
    Type: Application
    Filed: December 22, 2022
    Publication date: September 28, 2023
    Applicant: LOGISTEED, Ltd.
    Inventors: Nao ITO, Takeshi TANAKA, Shunsuke MINUSA, Hiroyuki KURIYAMA, Kiminori SATOH
  • Publication number: 20230305955
    Abstract: According to one embodiment, a storage system including a volatile memory with a first area, a second area, and a third area. The first area stores a logical address specified by an external device, a physical address of a nonvolatile storage medium associated with the logical address, and first information related to association between the logical address and the physical address. The second area stores a first number of second information indicating states of the first number of first ranges of the logical address. The third area stores third information indicating a state of a second range of the logical address, which includes the first number of the first ranges.
    Type: Application
    Filed: September 9, 2022
    Publication date: September 28, 2023
    Inventors: Hiroyuki Takatsu, Takeshi Tanaka
  • Publication number: 20230249513
    Abstract: A seat air-conditioning device includes a seat pad, a back lid and a blower. The back lid covers an opening side of a ventilation groove of the seat pad. The blower generates an airflow in a ventilation passage which is defined by the ventilation groove and the back lid. The back lid has a communication port that is formed at an opposing region of the back lid, which is opposed to the blower. The communication port is configured to conduct the airflow generated by the blower. The seat pad has a plurality of support portions that contact the back lid and are formed at an overlapping region of the seat pad which overlaps with the opposing region in a thickness direction of the seat pad. The support portions are circumferentially arranged one after another around the communication port.
    Type: Application
    Filed: April 17, 2023
    Publication date: August 10, 2023
    Inventors: Hironobu MURAKAMI, Shuji ITO, Takeshi TANAKA
  • Publication number: 20230211780
    Abstract: A computer generates an accident risk definition model to estimate a probability of hazard occurrence as an accident risk by inputting first in-vehicle sensor data collected in the past and hazard occurrence data having information on hazard occurrence from the first in-vehicle sensor data preset therein, generates accident risk estimation data by inputting second in-vehicle sensor data collected in the past to the accident risk definition model and estimating the probability of the hazard occurrence, generates an accident risk prediction model to predict the accident risk after a predetermined time by inputting first biological index data corresponding to the second in-vehicle sensor data and the accident risk estimation data, calculates second biological index data from second biological sensor data by acquiring the second biological sensor data of a driver, and predicts the accident risk after the predetermined time by inputting second biological index data to the accident risk prediction model.
    Type: Application
    Filed: June 7, 2021
    Publication date: July 6, 2023
    Applicant: HITACHI TRANSPORT SYSTEM, LTD.
    Inventors: Takeshi TANAKA, Shunsuke MINUSA, Hiroyuki KURIYAMA, Daichi OJIRO, Kiminori SATO
  • Publication number: 20230170996
    Abstract: Provided is an optical transmission system that performs RoF transmission of an RF signal. The optical transmission system includes an electro-optical conversion device for receiving an RF signal, converting the RF signal into an optical signal, and transmitting the optical signal; a multimode optical fiber for transmitting the optical signal transmitted from the electro-optical conversion device; and an opto-electrical conversion device for converting the optical signal transmitted from the optical fiber into an RF signal and transmitting the RF signal. The optical fiber has a numerical aperture (NA) of 0.13 or more and 0.22 or less.
    Type: Application
    Filed: April 7, 2021
    Publication date: June 1, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yuichi TSUJITA, Kazumasa OKADA, Takeshi TANAKA, Keita KIYOSHIMA, Yoshinori OSAKI
  • Publication number: 20230167585
    Abstract: There is provided a Group III nitride stack in which the concentration of an impurity in the buffer/channel layer of an HEMT is suppressed to a predetermined range. The Group III nitride stack includes a first layer comprising gallium nitride, and a second layer on the first layer, the second layer comprising a Group III nitride having a lower electron affinity than gallium nitride. The first layer includes a lower layer and an upper layer on the lower layer. The carbon concentration in the upper layer is lower than a carbon concentration in the lower layer, the hydrogen concentration in the upper layer is lower than a hydrogen concentration in the lower layer, the carbon concentration in the upper layer is 5×1016 cm?3 or less, and the hydrogen concentration in the upper layer is 1×1017 cm?3 or less.
    Type: Application
    Filed: November 22, 2022
    Publication date: June 1, 2023
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Ryota ISONO, Takeshi TANAKA
  • Publication number: 20230099686
    Abstract: Provided are a base cloth for a material and a manufacturing method therefor, the base cloth suppressing opening of a boundary portion between an expanding part and a non-expanding part when used in a bag body, having low dynamic air permeability, and being capable of exhibiting the characteristic of being unlikely to burst even at high temperatures. A fabric base cloth for a material according to the present invention is composed of fibers having a prescribed thread breaking strength value, and for which the cloth surface is not subjected to resin coating, laminating, or a resin impregnation treatment.
    Type: Application
    Filed: March 26, 2021
    Publication date: March 30, 2023
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventor: Takeshi Tanaka
  • Patent number: 11584693
    Abstract: There is provided a group III nitride laminate, including: a substrate comprised of silicon carbide; a first layer comprised of aluminum nitride and formed on the substrate; a second layer comprised of gallium nitride and formed on the first layer; and a third layer formed on the second layer and comprised of group III nitride having an electron affinity lower than that of the gallium nitride which is comprised in the second layer, the second layer having a thickness of less than 500 nm, the second layer containing iron at a concentration of less than 1×1017/cm3, and the second layer containing carbon at a concentration of less than 1×1017/cm3.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: February 21, 2023
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Takeshi Tanaka, Ryota Isono
  • Publication number: 20230011189
    Abstract: The information processing device includes a voice guidance unit configured to acquire a current position of the mobile body and perform voice guidance along a route to a destination. When an information request by a user is made by designating a direction different from the direction indicated by a current route at a guide point, the voice guidance unit outputs information on a comparison between the current route and a route to the destination advancing in a designated direction.
    Type: Application
    Filed: January 14, 2021
    Publication date: January 12, 2023
    Inventors: Koichi OGINO, Takeshi TANAKA, Kengo IENAGA
  • Publication number: 20230005161
    Abstract: In a motion analysis apparatus 101, a data input unit 205 acquires a first imaging result and a second imaging result. in the motion analysis apparatus 101, a skeleton recognition unit 206 recognizes skeleton positions of a subject using the first imaging. result acquired by the data input unit 205, and recognizes skeleton positions of the subject using the second imaging result acquired by the data input unit 205. A motion period extraction unit 403 extracts a period from a start of a motion to an end of the motion as a range of data for comparing skeleton feature points recognized by the skeleton recognition unit 206. The similarity calculation unit 401 compares skeleton feature points recognized for an input from a depth camera with skeleton feature points recognized for an input from an RGB camera to calculate similarities, and outputs a determination result based on the similarities.
    Type: Application
    Filed: September 10, 2020
    Publication date: January 5, 2023
    Inventors: Takashi TOYOMURA, Takeshi TANAKA, Daisuke FUKUI, Hiromitsu NAKAGAWA
  • Publication number: 20220404161
    Abstract: A system for generating guidance information for a driver includes a processor and a storage device. The storage device stores guidance history of the driver. The processor generates a feature value based on match/mismatch of guidance types abstracted from the guidance history. The processor determines a guidance type for the driver on the basis of the feature value. The processor generates information for issuing guidance of the determined guidance type to the driver according to driver monitoring information.
    Type: Application
    Filed: October 20, 2020
    Publication date: December 22, 2022
    Applicant: HITACHI TRANSPORT SYSTEM, LTD.
    Inventors: Daichi OJIRO, Shunsuke MINUSA, Takeshi TANAKA, Hiroyuki KURIYAMA, Kiminori SATO