Patents by Inventor Satoshi Nishikawa

Satoshi Nishikawa 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: 11215942
    Abstract: An image forming apparatus that has a transfer device that includes an intermediate transfer belt that is tensioned by a plurality of support rollers, a secondary transfer roller that faces one of the support rollers via the intermediate transfer belt, a cam that adjust a pressing force that presses the intermediate transfer belt by the secondary transfer roller, a motor that drives the cam, and a conveyor that conveys a recording medium to a transfer nip formed between the intermediate transfer belt and the secondary transfer roller is provided with a controller that controls an operation of the motor. The controller executes first control of operating the motor with a constant torque and stopping the motor when a rotation angular speed of the motor is less than or equal to a first threshold and second control of operating the motor at a predetermined timing to adjust a transfer nip amount.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: January 4, 2022
    Assignee: KONICA MINOLTA, INC.
    Inventors: Remi Ishikawa, Eiji Nishikawa, Satoshi Miyajima, Masayuki Fukunaga
  • Publication number: 20210391694
    Abstract: An optical transmission apparatus includes a first multilevel optical phase modulator and a first semiconductor optical amplifier. The first semiconductor optical amplifier includes a first active region having a first multiple quantum well structure. Assuming that a first number of layers of a plurality of first well layers is defined as n1 and a first length of the first active region is defined as L1 (?m): (a) n1=5 and 400?L1?563; (b) n1=6 and 336?L1?470; (c) n1=7 and 280?L1?432; (d) n1=8 and 252?L1?397; (e) n1=9 and 224?L1?351; or (f) n1=10 and 200?L1?297.
    Type: Application
    Filed: December 5, 2019
    Publication date: December 16, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Shusaku HAYASHI, Satoshi NISHIKAWA, Koichi AKIYAMA
  • Publication number: 20210392057
    Abstract: A management apparatus that manages network devices through a network manages information about network devices registered as management targets and executes a third type task in a case where a new network device satisfying a predetermined condition is found in a search, thereby automatically executing a plurality of tasks for the found network device.
    Type: Application
    Filed: June 8, 2021
    Publication date: December 16, 2021
    Inventor: Satoshi Nishikawa
  • Patent number: 11194240
    Abstract: A light source apparatus includes a red LD array that emits light in a red bandwidth, a blue LD array that emits light in a blue bandwidth, and a light combining part that includes a transmissive region and a reflecting region, the transmissive region transmitting the light emitted from the red LD array therethrough, the reflecting region reflecting the light emitted from the blue LD array.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: December 7, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuya Kurata, Hiroshi Yamamoto, Kimiya Hoshino, Satoshi Nishikawa
  • Publication number: 20210377417
    Abstract: The management apparatus receives first designation on a file and second designation of an image forming apparatus. The management apparatus obtains information from the image forming apparatus designated by the second designation in accordance with the first designation. The management apparatus outputs a file including the obtained information, information of the image forming apparatus designated by the second designation includes network information of the image forming apparatus, a communication date and time, a connection state, apparatus information corresponding to the type received by the first designation, and page count information not designated by the type received by the first designation. When obtainment of information complying with the first designation fails, the output file includes both information representing an error of the connection state, and page count information previously obtained from the image forming apparatus.
    Type: Application
    Filed: May 26, 2021
    Publication date: December 2, 2021
    Inventor: Satoshi Nishikawa
  • Patent number: 11175520
    Abstract: An optical semiconductor device includes a semiconductor substrate, a first semiconductor layer provided on the semiconductor substrate, and a mesa waveguide provided on the principal surface of the first semiconductor layer. The semiconductor device also includes a buried layer covering the upper surface of the first semiconductor layer. Part of the upper surface of the first semiconductor layer is exposed. A mesa structure provided at the boundary between a part of the first semiconductor layer is covered with the buried layer and a part of the first semiconductor layer is exposed. One side of the mesa structure is covered with the buried layer, and the other side is exposed. The optical semiconductor device can reduce the generation of stress in the buried layer, for example, to suppress the occurrence of cracks in the buried layer and enhance the reliability.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: November 16, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yuichiro Horiguchi, Satoshi Nishikawa, Koichi Akiyama, Keigo Fukunaga, Yohei Hokama, Yosuke Suzuki
  • Patent number: 11143821
    Abstract: An integrated grating coupler system includes a first chip having a first substrate, a first grating structure formed by first grating curves arranged on the first substrate and a cladding layer formed to cover the first grating structure, wherein the first chip include a first waveguide configured to receive a light beam from a first end via the first waveguide and transmit the light beam through a second end, a second chip having a second substrate and a second grating structure formed by second grating curves arranged on the second substrate, wherein the second chip is configured to receive the light beam from the second end of the first chip and transmit the light beam from an end of the second chip, and a common block configured to mount the first chip and second chip via a first submount and a second submount respectively, wherein the first and second submounts are arranged such that the light beam from the second end of the first chip is received at a top of the second chip.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: October 12, 2021
    Assignees: Mitsubishi Electric Research Laboratories, Inc., Mitsubishi Electric Corporation
    Inventors: Keisuke Kojima, Satoshi Nishikawa, Jonathan Klamkin
  • Publication number: 20210255812
    Abstract: A management device that manages an image processing device via a network includes a first acquisition unit acquiring application information for each application which is installed in the image processing device; a creation unit creating a task for monitoring an operation of an application in the image processing device; and a second acquisition unit acquiring resource information on resources which are required for using an application in the image processing device in accordance with the created task. An instruction on processing of a second type of application installed in the image processing device is executed when the acquired resource information satisfies predetermined conditions.
    Type: Application
    Filed: February 3, 2021
    Publication date: August 19, 2021
    Inventor: Satoshi Nishikawa
  • Patent number: 11093228
    Abstract: A management apparatus transmits an installation instruction for installing an application to a target device according to a task created by using a template. In a case where the template used for creating the task is a template for installing the latest version of an application, an instruction for installing the latest version of the application is transmitted to the target device.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: August 17, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Satoshi Nishikawa
  • Patent number: 11079550
    Abstract: A grating coupler having first and second ends for coupling a light beam to a waveguide of a chip includes a substrate configured to receive the light beam from the first end and transmit the light beam through the second end, the substrate having a first refractive index n1, a grating structure having curved grating lines arranged on the substrate, the grating structure having a second refractive index n1, wherein the curved grating lines have line width w and height d and are arranged by a pitch ?, wherein the second refractive index n2 is less than first refractive index n1, and a cladding layer configured to cover the grating structure, wherein the cladding layer has a third refractive index n3. The curves of the grating lines are constructed such that the emitting beam is shaped for efficient coupling to another optical component. The curves can also be tilted to reduce coupling back into the waveguide.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: August 3, 2021
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Keisuke Kojima, Satoshi Nishikawa, Shusaku Hayashi, Yosuke Suzuki, Jonathan Klamkin, Yingheng Tang
  • Publication number: 20210181427
    Abstract: A grating coupler having first and second ends for coupling a light beam to a waveguide of a chip includes a substrate configured to receive the light beam from the first end and transmit the light beam through the second end, the substrate having a first refractive index n1, a grating structure having curved grating lines arranged on the substrate, the grating structure having a second refractive index n1, wherein the curved grating lines have line width w and height d and are arranged by a pitch ?, wherein the second refractive index n2 is less than first refractive index n1, and a cladding layer configured to cover the grating structure, wherein the cladding layer has a third refractive index n3. The curves of the grating lines are constructed such that the emitting beam is shaped for efficient coupling to another optical component. The curves can also be tilted to reduce coupling back into the waveguide.
    Type: Application
    Filed: February 23, 2021
    Publication date: June 17, 2021
    Applicants: Mitsubishi Electric Research Laboratories, Inc., Mitsubishi Electric Corporation
    Inventors: Keisuke Kojima, Satoshi Nishikawa, Shusaku Hayashi, Yosuke Suzuki, Jonathan Klamkin, Yingheng Tang
  • Patent number: 10996400
    Abstract: An optical waveguide interferometer that includes a first optical section, a second optical section, and a set of optical waveguides configured to connect the first and second optical sections, such that light propagating between the first optical section and the second optical section passes through each optical waveguide in the set, wherein the set of optical waveguides includes a first optical waveguide having a first length and a first width and a second optical waveguide having a second length and a second width, wherein the second length is greater than the first length, and the second width is greater than the first width.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: May 4, 2021
    Assignees: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Keisuke Kojima, Bingnan Wang, Toshiaki Koike-Akino, Koichi Akiyama, Eiji Yagyu, Satoshi Nishikawa, Kosuke Shinohara
  • Publication number: 20210116645
    Abstract: A grating coupler having first and second ends for coupling a light beam to a waveguide of a chip includes a substrate configured to receive the light beam from the first end and transmit the light beam through the second end, the substrate having a first refractive index n1, a grating structure having curved grating lines arranged on the substrate, the grating structure having a second refractive index n1, wherein the curved grating lines have line width w and height d and are arranged by a pitch ?, wherein the second refractive index n2 is less than first refractive index n1, and a cladding layer configured to cover the grating structure, wherein the cladding layer has a third refractive index n3. The curves of the grating lines are constructed such that the emitting beam is shaped for efficient coupling to another optical component. The curves can also be tilted to reduce coupling back into the waveguide.
    Type: Application
    Filed: January 28, 2020
    Publication date: April 22, 2021
    Applicants: Mitsubishi Electric Research Laboratories, Inc., Mitsubishi Electric Corporation
    Inventors: Keisuke Kojima, Satoshi Nishikawa, Shusaku Hayashi, Yosuke Suzuki, Jonathan Klamkin, Yingheng Tang
  • Patent number: 10983272
    Abstract: A multi-mode interference multiplexer/demultiplexer can suppress reflected return light while guiding light to a single-mode waveguide. The multi-mode interference multiplexer/demultiplexer includes a multi-mode waveguide, a first single-mode waveguide connected to a first end, a second single-mode waveguide opposing the first single-mode waveguide, a third single-mode waveguide connected to a second end, a reflecting surface opposing the third single-mode waveguide, and a fourth single-mode waveguide connected to a side end. Light entering from the second or third single-mode waveguide is reflected off the reflecting surface and forms an image at a first connection on a side end of the fourth single-mode waveguide.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: April 20, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masakazu Takabayashi, Satoshi Nishikawa, Koichi Akiyama
  • Patent number: 10949142
    Abstract: An information processing apparatus manages setting information as first setting information. The setting information is necessary to acquire user information from a device through a network. The user information includes at least either one of an upper limit number of storage areas that are allocated in the device and available to a user, or a level of authority to control data to which the user can refer on the device. Setting information which is necessary to acquire the user information from the device is acquired as second setting information. When there is inconsistency between the first and second setting information due to a content mismatch, the user information is acquired from the device through the network by using either one of the first setting information or the second setting information in both the information processing apparatus and the device. The user information acquired from the device is imported.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: March 16, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Satoshi Nishikawa
  • Patent number: 10929273
    Abstract: A verification method for an application logic provided with one or more macro logics configured to perform a predetermined operation, a macro operation control unit configured to instruct the one or more macro logics to start the operation to cause the one or more macro logics to perform the operation, and an operation data storage area configured to store data. In the application logic, static verification by property description of a formal verification language is performed for each of the one or more macro logic, the macro operation control unit, and the operation data storage area, and dynamic verification by simulation is further performed for at least one of the one or more macro logics.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: February 23, 2021
    Assignee: HITACHI, LTD.
    Inventors: Toru Motoya, Masahiro Shiraishi, Satoshi Nishikawa, Keisuke Yamamoto, Tadanobu Toba, Takumi Uezono, Hideo Harada, Yusuke Kanno
  • Publication number: 20210044082
    Abstract: A semiconductor optical integrated device comprises a semiconductor amplifier and a plurality of semiconductor lasers, wherein the semiconductor amplifier and the semiconductor lasers are monolithically integrated on a semiconductor substrate, an n-side cladding layer of the semiconductor amplifier and an n-side cladding layer of each of the semiconductor lasers are electrically insulated by an insulating layer formed between the semiconductor substrate and the n-side cladding layer of the semiconductor lasers and an insulating layer formed between the n-side cladding layer of the semiconductor amplifier and the n-side cladding layer of the semiconductor lasers, the n-side cladding layer of the semiconductor lasers and the p-side cladding layer of the semiconductor amplifier is configured to be electrically connected, and the semiconductor amplifier and each semiconductor laser of the plurality of semiconductor lasers are electrically connected in series.
    Type: Application
    Filed: April 23, 2018
    Publication date: February 11, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Keisuke MATSUMOTO, Eitaro ISHIMURA, Satoshi KAJIYA, Satoshi NISHIKAWA
  • Publication number: 20210025034
    Abstract: An aluminum alloy suitable for obtaining a die-cast aluminum product having high strength and high toughness, comprises, by mass, Si: 7.0 to 9.0%, Mg: 0.4 to 0.6%, Cu: 0.4 to 0.7%, Cr: 0.5% or less, Mn: 0.5% or less, [Cr+Mn]: 0.1 to 0.8%, Fe: 0.10 to 0.25%, and Sr: 0.005 to 0.02%, the balance being Al and impurities.
    Type: Application
    Filed: July 23, 2020
    Publication date: January 28, 2021
    Inventor: Satoshi NISHIKAWA
  • Patent number: 10892956
    Abstract: A device management server that manages information regarding an application associated with a product key, and information regarding a panel application includes a first creation unit configured to create a first task for distributing to a network device the application associated with the product key, and a second creation unit configured to create a second task for distributing the panel application to the network device, and in a case where the second task is executed, acquires version information regarding the second application installed on the network device, and distributes a new version of the panel application.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: January 12, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Satoshi Nishikawa
  • Publication number: 20200411827
    Abstract: An embodiment according to the invention provides a separator for a non-aqueous secondary battery, containing a porous substrate and an adhesive porous layer that contains resin A and resin B1; (1) resin A: a copolymer containing vinylidene fluoride (VDF) and hexafluoropropylene (HFP), in which a molar content of HFP monomer unit with respect to a total molar quantity of VDF monomer unit and HFP monomer unit is from more than 1.5 mol % to 3.5 mol %, and (2) resin B1: a copolymer containing VDF, HFP, and a monomer of formula (1), in which a molar content of HFP monomer unit with respect to a total molar quantity of VDF monomer unit, HFP monomer unit, and a monomer unit of formula (1) is from more than 3.5 mol % to 15 mol % (R1 to R3: H, a halogen atom, a carboxyl group, etc., or a C1-5 alkyl group; X: a single bond, a C1-5 alkylene group, etc., Y: H, a C1-5 alkyl group, etc.
    Type: Application
    Filed: November 29, 2018
    Publication date: December 31, 2020
    Applicant: Teijin Limited
    Inventors: Rika KURATANI, Megumi SATO, Satoshi NISHIKAWA