Patents by Inventor Akihiro Otsuka

Akihiro Otsuka 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: 20240152015
    Abstract: The present invention provides a technology of switching the appearance of a product. A decorative film according to an embodiment of the present invention includes: a light control layer including a first transparent conductive film, a polymer dispersed liquid crystal layer containing a polymer matrix and droplets dispersed in the polymer matrix, the droplets each containing a liquid crystal compound and a dichroic dye, and a second transparent conductive film in the stated order from a viewer side thereof; and a reflective layer arranged on a side of the light control layer opposite to the viewer side.
    Type: Application
    Filed: February 16, 2022
    Publication date: May 9, 2024
    Applicant: NITTO DENKO CORPORATION
    Inventors: Mariko HIRAI, Masanori OTSUKA, Akihiro SHIBUYA
  • Publication number: 20240142816
    Abstract: The present invention provides a technology of switching the appearance of a product. A decorative film according to an embodiment of the present invention includes: a light control layer including a first transparent conductive film, a polymer dispersed liquid crystal layer containing a polymer matrix and droplets dispersed in the polymer matrix, the droplets each containing a liquid crystal compound and a dichroic dye, and a second transparent conductive film in the stated order from a viewer side thereof; and a decorative layer arranged on at least one side of the light control layer.
    Type: Application
    Filed: February 16, 2022
    Publication date: May 2, 2024
    Applicant: NITTO DENKO CORPORATION
    Inventors: Mariko HIRAI, Masanori OTSUKA, Akihiro SHIBUYA
  • Publication number: 20240120867
    Abstract: A motor control method for transferring an object to be transferred by a moving object that moves by driving of a motor in a substrate processing apparatus, includes: a data acquisition process of acquiring, at different times, pieces of drive data which relate to the driving of the motor and vary with heat generation of the motor; and a transfer process of transferring the object to be transferred by controlling current to be supplied to the motor, based on each of the pieces of drive data, to compensate for displacement of the object to be transferred from a target transfer position due to the heat generation of the motor.
    Type: Application
    Filed: October 4, 2023
    Publication date: April 11, 2024
    Inventors: Youichi MASAKI, Mitsuteru YANO, Eiichi SEKIMOTO, Tsuyoshi OTSUKA, Akihiro TERAMOTO, Teppei ITO, Koji TAKAYANAGI
  • Patent number: 11955600
    Abstract: A solid-state battery is provided that allows the exterior can to be sufficiently crimped onto the seal can without leading to improper crimping, thus preventing entry of water from the outside. The solid-state battery 1 includes an exterior can 2, a seal can 3, facing the exterior can 2 and a power generation element 4 contained in the space between the exterior can 2 and seal can 3. The seal can 3 includes a flat portion 31 and a peripheral wall 32 that are contiguous to each other with a curved-surface portion 33 provided therebetween. A first clearance g1 is defined between the upper edge of the outer peripheral surface of the power generation element 4 and the border 10 between the inner surface of the flat portion 31 and the inner surface of the curved-surface portion 33, the first clearance having a radial dimension not larger than 2.0 mm at a position where its dimension is at its largest.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: April 9, 2024
    Assignee: Maxell, Ltd.
    Inventors: Yusuke Kawabata, Akihiro Fujimoto, Takumi Otsuka
  • Patent number: 10839127
    Abstract: A temperature calculation method for a substrate, the temperature calculation method includes: calculating, by a computer performing a circuit simulation based on a resistance equivalent to a component that joins two substrates included in a target model of an analysis, a value of a current that flows through the component or voltage values in respective end portions of the component; setting, based on model information for expressing the target model, the current value or the voltage values in a first surface and a second surface that are included in surfaces of an outer shape of the component and that are in contact with the respective substrates; and calculating a first current density distribution of the component by performing a first electrical analysis according to the setting.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: November 17, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Tetsuyuki Kubota, Akira Ueda, Hideharu Matsushita, akihiro otsuka, Yasuhiro Ite, Takamasa Shinde, Kazuhisa Inagaki, Akira Sakai
  • Patent number: 10380276
    Abstract: A non-transitory computer-readable recording medium stores an analysis model adjustment program. The analysis model adjustment program makes a computer execute the following processes. The computer compares a first attribute value that indicates an operating point of a fan in a first analysis model that represents an apparatus that includes the fan with a second attribute value that indicates an operating point of the fan in a second analysis model that is more simplified than the first analysis model. Next, the computer changes an aperture ratio of the second analysis model according to a result of the comparing the first attribute value with the second attribute value.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: August 13, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Hiroyuki Furuya, Akihiro Otsuka, Akira Ueda, Atsushi Yamaguchi
  • Publication number: 20170336950
    Abstract: A non-transitory computer-readable recording medium has stored therein a program for causing a computer to execute a process for displaying a characteristic, the process includes displaying, on a display, a main screen indicating a first characteristic in a first area of an object to be analyzed; and displaying, on the display, a sub-screen indicating a second characteristic in a second area in the object, the second characteristic being different from the first characteristic, the second area being specified within the main screen, the sub-screen being overlapped on a portion within the main screen, the portion being corresponding to a portion of the second area in the first area.
    Type: Application
    Filed: May 1, 2017
    Publication date: November 23, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Takamasa Shinde, Akira Sakai, Akihiro Otsuka, Kazuhisa Inagaki, Hideharu Matsushita, Akira Ueda, Tetsuyuki Kubota, Yasuhiro Ite
  • Publication number: 20170262558
    Abstract: A non-transitory computer-readable recording medium having stored therein a program for causing a computer to execute a process for thermal conductivity calculation, the process includes receiving information indicating a surface of a first part, on which a particular part having high elasticity is disposed; receiving specification information indicating a second part in contact with the particular part; receiving information Indicating a first thickness of the particular part; calculating a second thickness of the particular part after compressed when the particular part is placed between the surface and the second part; and calculating a thermal conductivity of the compressed particular part having the second thickness, according to an amount of compression indicating a difference between the first and the second thicknesses and to a correspondence relationship between a thermal resistance of the particular part and an amount obtained by subtracting a thickness of the compressed particular part from the fir
    Type: Application
    Filed: February 15, 2017
    Publication date: September 14, 2017
    Applicant: FUJITSU LIMITED
    Inventors: akihiro otsuka, Akira Ueda, Yasuhiro Ite, Takamasa Shinde, Kazuhisa Inagaki, Akira Sakai, Tetsuyuki Kubota, Hideharu Matsushita
  • Publication number: 20170220720
    Abstract: A temperature calculation method for a substrate, the temperature calculation method includes: calculating, by a computer performing a circuit simulation based on a resistance equivalent to a component that joins two substrates included in a target model of an analysis, a value of a current that flows through the component or voltage values in respective end portions of the component; setting, based on model information for expressing the target model, the current value or the voltage values in a first surface and a second surface that are included in surfaces of an outer shape of the component and that are in contact with the respective substrates; and calculating a first current density distribution of the component by performing a first electrical analysis according to the setting.
    Type: Application
    Filed: November 14, 2016
    Publication date: August 3, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Tetsuyuki Kubota, Akira Ueda, Hideharu Matsushita, Akihiro Otsuka, Yasuhiro Ite, Takamasa Shinde, Kazuhisa Inagaki, Akira Sakai
  • Patent number: 9719520
    Abstract: An operation unit calculates, for each object, a ratio of an amount of temperature rise against a tolerance for temperature rise by using an amount of temperature rise from a predetermined temperature of each object when each fan is operated with a first air volume of each fan and a tolerance for temperature rise from the predetermined temperature of each object. The operation unit calculates a second air volume of each fan, based on the ratio calculated for each object and cooling contribution information of each fan to the object.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: August 1, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Atsushi Yamaguchi, Akihiro Otsuka, Tadashi Katsui, Akira Ueda, Hiroyuki Furuya, Kazuhiro Nitta
  • Publication number: 20160232261
    Abstract: A non-transitory computer-readable recording medium stores an analysis model adjustment program. The analysis model adjustment program makes a computer execute the following processes. The computer compares a first attribute value that indicates an operating point of a fan in a first analysis model that represents an apparatus that includes the fan with a second attribute value that indicates an operating point of the fan in a second analysis model that is more simplified than the first analysis model. Next, the computer changes an aperture ratio of the second analysis model according to a result of the comparing the first attribute value with the second attribute value.
    Type: Application
    Filed: January 20, 2016
    Publication date: August 11, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Hiroyuki Furuya, Akihiro Otsuka, Akira Ueda, Atsushi Yamaguchi
  • Patent number: 9330207
    Abstract: A design support method includes: executing by a computer operations of: moving, in an arbitrary direction, a first particle that is placed at a position in an internal space of a three-dimensional model of a design target and has a diameter of a size; recording a movement trace of the first particle; and calculating a volume of a first spatial region formed by the recorded movement trace.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: May 3, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Hiroyuki Furuya, Akihiro Otsuka, Atsushi Yamaguchi, Akira Ueda, Kazuhiro Nitta
  • Publication number: 20160055949
    Abstract: The purpose of the present invention is to reduce vibration derived from a refrigeration machine. A cryostat comprises: a helium tank (2) which stores liquid helium; a refrigeration machine (5) which is provided above the helium tank (2) and re-liquefies the vaporized liquid helium in the helium tank (2); a cylindrical member (15) which houses the lower part of the refrigeration machine (5) and forms a liquefaction chamber (8) communicating with the helium tank (2); and a buffer tank (10) which stores helium gas and communicates with at least either the space above the surface of the liquid helium in the helium tank (2) or the liquefaction chamber (8). The gas-phase volumes of the helium tank (2) and the liquefaction chamber (8) increase by having the buffer tank (10) communicate with the helium tank (2) and the liquefaction chamber (8).
    Type: Application
    Filed: March 7, 2014
    Publication date: February 25, 2016
    Applicant: JAPAN SUPERCONDUCTOR TECHNOLOGY INC.
    Inventors: Kazuhito TAGO, Akihiro OTSUKA
  • Publication number: 20150192139
    Abstract: An operation unit calculates, for each object, a ratio of an amount of temperature rise against a tolerance for temperature rise by using an amount of temperature rise from a predetermined temperature of each object when each fan is operated with a first air volume of each fan and a tolerance for temperature rise from the predetermined temperature of each object. The operation unit calculates a second air volume of each fan, based on the ratio calculated for each object and cooling contribution information of each fan to the object.
    Type: Application
    Filed: December 19, 2014
    Publication date: July 9, 2015
    Inventors: Atsushi Yamaguchi, Akihiro Otsuka, Tadashi Katsui, Akira Ueda, HIROYUKI FURUYA, KAZUHIRO NITTA
  • Patent number: 9052882
    Abstract: A blower control device changes a PQ characteristic in a second table so that an operating point (QN, PN) on the PQ characteristic in the second table agrees with an operating point (Q0, P0) on a PQ characteristic in a first table. At this time, the blower control device changes the PQ characteristic in the second table at a rate based on QN and Q0. Furthermore, the blower control device changes a load noise characteristic in the second table at a rate based on QN and Q0. Then, the blower control device calculates load noise corresponding to the operating point (Q0, P0) with respect to each rotation frequency ratio from the changed load noise characteristic. And then, the blower control device determines a rotation frequency ratio corresponding to the lowest load noise as a rotation frequency ratio at which a plurality of fans is rotated.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: June 9, 2015
    Assignee: FUJITSU LIMITED
    Inventors: Kazuhiro Nitta, Akira Ueda, Atsushi Yamaguchi, Hiroyuki Furuya, Akihiro Otsuka
  • Publication number: 20140324380
    Abstract: A calculating unit calculates, using information indicating temperatures of a fluid mixture at individual locations across a space, heat quantities transferred to the fluid mixture at the individual locations. The fluid mixture is a blend of a plurality of fluids allowed to flow in by a plurality of cooling apparatuses. The calculating unit calculates heat quantities transferred to each of the fluids at the individual locations based on the heat quantities transferred to the fluid mixture at the individual locations, a velocity distribution of the fluid mixture, and flow rate distributions of the individual fluids. The calculating unit evaluates, using the heat quantities transferred to each of the fluids at the individual locations, the degree of contribution of each of the cooling apparatuses to cooling of an object disposed in the space.
    Type: Application
    Filed: April 11, 2014
    Publication date: October 30, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Akihiro Otsuka, Masaru Sugie, Tadashi Katsui, Akira Ueda, Atsushi Yamaguchi, Hiroyuki Furuya, Kazuhiro Nitta
  • Publication number: 20140288889
    Abstract: An analysis model generating apparatus includes a processor that is configured to generate based on three-dimensional design information of an object under analysis, first information that represents a rectangular parallelepiped surrounding the object; generate for each direction of three orthogonal sides of the rectangular parallelepiped indicated by the first information, second information that indicates cross sections of the rectangular parallelepiped orthogonal to the direction; calculate based on the design information and for each of the cross sections indicated by the second information, an index value corresponding to a proportion of the object in a cross section; detect among the cross sections, adjacent cross sections having a difference in the calculated index value greater than a predetermined value; and generate for each of the detected adjacent cross sections, a plate model representative of a plate that is disposed orthogonal to the direction at a position corresponding to the adjacent cross s
    Type: Application
    Filed: January 16, 2014
    Publication date: September 25, 2014
    Applicant: Fujitsu Limited
    Inventors: HIROYUKI FURUYA, Akihiro Otsuka, Atsushi Yamaguchi, Akira Ueda, KAZUHIRO NITTA
  • Patent number: 8807919
    Abstract: A counter-rotating axial flow fan with reduced noise at the target operating point achieved without modifying a front impeller, a rear impeller, or a middle stationary portion is provided. An annular rib including a projecting surface for generating turbulent flow is formed on an inner wall portion of a casing at a position off from the middle stationary portion to a side of the rear impeller, the projecting surface extending radially inwardly of the inner wall portion and extending continuously in the circumferential direction of the inner wall portion. A fluid striking the projecting surface for generating turbulent flow is partially disturbed to form a turbulent flow before entering an area in which the rear impeller is provided. The turbulent flow suppresses flow separation of a fluid flowing along the surfaces of rear blades of the rear impeller from the surfaces of the rear blades.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: August 19, 2014
    Assignees: The University of Tokyo, Fujitsu Limited, Sanyo Denki Co., Ltd.
    Inventors: Chisachi Kato, Atsushi Yamaguchi, Akira Ueda, Kazuhiro Nitta, Akihiro Otsuka, Sr., Tadashi Katsui, Masahiro Suzuki, Yoshihiko Aizawa, Honami Oosawa
  • Patent number: 8764375
    Abstract: A counter-rotating axial flow fan with improved characteristics and reduced noise compared to the related art can be provided. Defining the number of front blades as N, the number of stationary blades as M, and the number of rear blades as P, and defining the maximum axial chord length of the front blades as Lf, the maximum axial chord length of the rear blades as Lr, the outside diameter of the front blades as Rf, and the outside diameter of the rear blades as Rr, the counter-rotating axial flow fan satisfies the following two relationships: N?P>M; and Lf/(Rf×?/N)?1.25 and/or Lr/(Rr×?/P)?0.83.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: July 1, 2014
    Assignees: The University of Tokyo, Fujitsu Limited, Sanyo Denki Co., Ltd.
    Inventors: Chisachi Kato, Atsushi Yamaguchi, Akira Ueda, Kazuhiro Nitta, Akihiro Otsuka, Tadashi Katsui, Masahiro Suzuki, Yoshihiko Aizawa, Honami Oosawa
  • Patent number: 8690528
    Abstract: A counter-rotating axial flow fan in which the shape of stationary blades of a middle stationary portion is optimized to reduce noise is provided. Defining the maximum axial chord length of front blades as Lf, the maximum axial chord length of rear blades as Lr, and the maximum axial chord length of stationary blades as Lm, a relationship of Lm/(Lf+Lr)<0.14 is satisfied. Defining the maximum dimension between the blade chord for lower surfaces of the stationary blades and the lower surfaces as K1, the maximum axial chord length Lm of the stationary blades satisfies a relationship of Lm/K1>5.8.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: April 8, 2014
    Assignees: The University of Tokyo, Sanyo Denki Co., Ltd., Fujitsu Limited
    Inventors: Chisachi Kato, Atsushi Yamaguchi, Akira Ueda, Kazuhiro Nitta, Akihiro Otsuka, Sr., Tadashi Katsui, Masahiro Suzuki, Yoshihiko Aizawa, Honami Oosawa