Patents by Inventor Akihiro Kawamura

Akihiro Kawamura 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: 11927904
    Abstract: Provided is an electrophotographic belt of an endless shape including a substrate, wherein the substrate contains a polyimide resin and carbon nanotubes, wherein a content of the carbon nanotubes in the substrate is 15 vol % or less with respect to a total volume of the polyimide resin, wherein the substrate has a tensile strength of 200 MPa or more in each of a peripheral direction thereof and a direction perpendicular to the peripheral direction, and wherein the substrate has a thermal conductivity of 0.9 W/(m·K) or more in a thickness direction thereof.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: March 12, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akeshi Asaka, Taiki Watanabe, Yuma Kobayashi, Hidetaka Kawamura, Satoru Nishiuma, Akihiro Taya, Ryunosuke Kawahara
  • Patent number: 10628696
    Abstract: An imaging device includes a reflection polarization prism having an incident surface on which illumination light emitted from a light emitter is incident and a transmission surface that passes the illumination light entered the incident surface through one surface of a light-transmitting member, an imager including an image sensor having a first light-receiving portion that receives light from a predetermined imaging area transmitting the light-transmitting member and a second light-receiving portion adjacent to the first light-receiving portion that receives the illumination light reflected on an opposite surface to the one surface of the light-transmitting member, and an optical member that emits the light introduced from the predetermined imaging area to the first light-receiving portion and emits the illumination light reflected on the opposite surface of the light-transmitting member to the second light-receiving portion.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: April 21, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Izumi Itoh, Akihiro Kawamura, Ken Shirasaki, Kenichi Ishizuka, Kenya Fujiwara, Hiroyuki Satoh, Shusaku Takasu
  • Publication number: 20200048485
    Abstract: Provided is an ink-jet ink set, including: a pigment; a binder resin; a dispersant; and a solvent, wherein the pigment includes, as a yellow colorant, at least any one selected from the group consisting of C.I. Pigment Brown 24, metal-coated C.I. Pigment Yellow 42, and C.I. Pigment Yellows 48, 53, 119, 161, and 189.
    Type: Application
    Filed: November 7, 2017
    Publication date: February 13, 2020
    Applicant: SEIREN CO., LTD.
    Inventor: Akihiro Kawamura
  • Publication number: 20190375226
    Abstract: A printed matter comprising a substrate and an ink jet image layer formed on the substrate, in which the ink jet image layer comprises a coloring material and a fluorine resin.
    Type: Application
    Filed: February 13, 2018
    Publication date: December 12, 2019
    Applicant: SEIREN CO., LTD.
    Inventor: Akihiro KAWAMURA
  • Publication number: 20190177562
    Abstract: An ink comprising a fluorine resin and a solvent having a solubility parameter value (SP vale) of 7 to 11, wherein the fluorine resin having a solubility of 500 (g/L) or more in diethylene glycol diethyl ether and an hydroxyl value of 20 to 100 mg KOH/g, wherein the fluorine resin is contained in the ink in an amount of 40% by mass or less, wherein an amount of the solvent in the ink is 50% by mass or more, wherein the solvent comprises at least one glycol methyl ether acetate selected from the group consisting of diethylene glycol diethyl ether, diethylene glycol dimethyl ether, diethylene glycol isopropyl methyl ether, tripropylene glycol dimethyl ether, diethylene glycol butyl methyl ether, propylene glycol monophenyl ether, tetraethylene glycol dimethyl ether, propylene glycol monomethyl ether and ethylene glycol monobenzyl ether, or at least one acetate solvent selected from the group consisting of propylene glycol diacetate, dipropylene glycol methyl ether acetate and 1,6-hexanediol diacetate, and where
    Type: Application
    Filed: August 2, 2017
    Publication date: June 13, 2019
    Applicant: Seiren Co., Ltd.
    Inventor: Akihiro KAWAMURA
  • Patent number: 10065625
    Abstract: An ECU is applied to a hybrid vehicle that is equipped with an internal combustion engine and a second motor-generator, which are configured to output a driving force for running. The hybrid vehicle is configured to run with the internal combustion engine in intermittent operation. Also, the ECU is configured to calculate an amount of dilution water that is mixed into oil in the internal combustion engine to dilute the oil. The ECU is configured to operate the internal combustion engine when the amount of the dilution water becomes larger than a first threshold.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: September 4, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akihiro Kawamura, Shinji Matsuo, Chikara Inoue, Yukinori Ohta
  • Publication number: 20180132714
    Abstract: The present invention is directed to an apparatus for identifying the rate of frequency at which a person perceives distinct visual images or sounds. The device, product and method comprise means for presenting the image(s) or sounds, means for selecting the distinct image(s) or sounds, means for selecting an instance number, presenting the image or sound in an amount equal to the instance number, the distinct image being displayed on a screen, the sound being presented via a speaker, at a first frequency rate at which frequency the person in unable to perceive the correct number of images or sounds, means for decreasing the frequency rate presentation of the distinct image or sound to a second frequency rate, the second frequency rate being the frequency at which the person is able to perceive individual occurrences of the image or sound in an amount equal to the instance number, and capturing the value of the second display frequency.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 17, 2018
    Inventors: Akihiro Kawamura, Jeffrey C. Flamm
  • Publication number: 20170270381
    Abstract: An imaging device includes a reflection polarization prism having an incident surface on which illumination light emitted from a light emitter is incident and a transmission surface that passes the illumination light entered the incident surface through one surface of a light-transmitting member, an imager including an image sensor having a first light-receiving portion that receives light from a predetermined imaging area transmitting the light-transmitting member and a second light-receiving portion adjacent to the first light-receiving portion that receives the illumination light reflected on an opposite surface to the one surface of the light-transmitting member, and an optical member that emits the light introduced from the predetermined imaging area to the first light-receiving portion and emits the illumination light reflected on the opposite surface of the light-transmitting member to the second light-receiving portion.
    Type: Application
    Filed: November 20, 2015
    Publication date: September 21, 2017
    Applicant: RICOH COMPANY, LTD.
    Inventors: Izumi ITOH, Akihiro KAWAMURA, Ken SHIRASAKI, Kenichi ISHIZUKA, Kenya FUJIWARA, Hiroyuki SATOH, Shusaku TAKASU
  • Patent number: 9546255
    Abstract: To obtain a decorative film for insert molding, which is decorated by an ultraviolet curing ink-jet ink, and which exhibits excellent flexibility upon insert molding. A decorative film for insert molding, having on a film substrate a decorative layer formed from an ultraviolet curing ink-jet ink, wherein the elongation of the decorative film for insert molding is 150% or more under conditions at 180° C. and 50% or more under conditions at 25° C.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: January 17, 2017
    Assignee: SEIREN CO., LTD.
    Inventor: Akihiro Kawamura
  • Publication number: 20170009684
    Abstract: An ECU is applied to a hybrid vehicle that is equipped with an internal combustion engine and a second motor-generator, which are configured to output a driving force for running. The hybrid vehicle is configured to run with the internal combustion engine in intermittent operation. Also, the ECU is configured to calculate an amount of dilution water that is mixed into oil in the internal combustion engine to dilute the oil. The ECU is configured to operate the internal combustion engine when the amount of the dilution water becomes larger than a first threshold.
    Type: Application
    Filed: July 1, 2016
    Publication date: January 12, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akihiro KAWAMURA, Shinji MATSUO, Chikara INOUE, Yukinori OHTA
  • Publication number: 20160046777
    Abstract: To obtain a decorative film for insert molding, which is decorated by an ultraviolet curing ink-jet ink, and which exhibits excellent flexibility upon insert molding. A decorative film for insert molding, having on a film substrate a decorative layer formed from an ultraviolet curing ink-jet ink, wherein the elongation of the decorative film for insert molding is 150% or more under conditions at 180° C. and 50% or more under conditions at 25° C.
    Type: Application
    Filed: March 3, 2014
    Publication date: February 18, 2016
    Inventor: Akihiro KAWAMURA
  • Publication number: 20070126496
    Abstract: A semiconductor integrated circuit is provided with a signal processing circuit which operates based on a first reference voltage and processes a voice signal, an output amplifier which amplifiers the voice signal, and a pair of BTL output-type output amplifiers which operates based on a second voltage, amplifies the voice signal, and supplies the amplified signal to a speaker. And further, the integrated circuit is provided with a voltage comparator which compares the second reference voltage and a predetermined voltage and a precharging circuit which makes the first reference voltage rapidly reach a stable voltage for a time period during which the second reference voltage reaches the predetermined voltage based on the comparison results from the voltage comparator.
    Type: Application
    Filed: November 29, 2006
    Publication date: June 7, 2007
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Akihiro Kawamura, Keiichi Fujii
  • Publication number: 20050047615
    Abstract: To provide an audio signal amplifier and an audio apparatus having the same that automatically set the output level to an optimum level depending on power supply voltage and so on.
    Type: Application
    Filed: August 23, 2004
    Publication date: March 3, 2005
    Inventors: Akihiro Kawamura, Keiichi Fujii, Junko Hirose
  • Patent number: 6764311
    Abstract: A training/managing system and method of basic ability which enables objective and efficient management for improving the basic ability of persons by training toward some kind of target. The training/managing system of basic ability 1 is provided with training terminals 3-1 to 3-n for measuring/training ability to read characters of an employee to be trained, and a management device 4 which are connected to an information communicating network 2. The management device 4 is equipped with a data management server 5 for storing measured data in time-series; performing a predetermined arithmetical operation; and deriving management data, and a management terminal 7 for presenting the management data for a business administrator.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: July 20, 2004
    Inventor: Akihiro Kawamura
  • Patent number: 6522863
    Abstract: A multiple listening training device which is novel and suitable for a training simultaneous listening to a plurality of audio exercises or video/audio exercises. In the multiple listening training device, a plurality of audio exercises, the contents of which are different from each other, are prepared and stored as sound data. The device plays back via an audio playback device one turn of audio material comprising a first part playing back simultaneously k pieces of audio exercises, a second part playing back simultaneously m pieces of audio exercises and a third part playing back simultaneously n pieces of audio exercises and the first part, the second part and the third part being arranged by time series. Wherein, k, m, n are integers not less than 1 and k<n<m.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: February 18, 2003
    Inventor: Akihiro Kawamura
  • Patent number: 6409513
    Abstract: A system which utilizes a series of computer controlled exercises designed to strengthen eye muscles to reduce eye fatigue, to increase overall reading speed by performing variable reading speed exercises, and to enhance an eye-brain connection to improve reading comprehension and maintain the speed reading and comprehension skills. A specific variable reading rate process has the reader read at a first rate, then increase to a second rate, and finally decrease to a third reading rate that is faster than the first rate, and slower than the second rate. Eye-brain connection enhancement exercises include following objects moving in specific patterns across a computer screen, expanding peripheral vision by watching and following the outline of expanding objects, rapidly solving maze puzzles, sequentially locating a series of numbers on a single display screen, and two-point horizontal and vertical scanning.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: June 25, 2002
    Assignee: Infinite Mind, L.C.
    Inventors: Akihiro Kawamura, Jeffrey C. Flamm
  • Publication number: 20020061507
    Abstract: A training/managing system and method of basic ability which enables objective and efficient management for improving the basic ability of persons by training toward some kind of target. The training/managing system of basic ability 1 is provided with training terminals 3-1 to 3-n for measuring/training ability to read characters of an employee to be trained, and a management device 4 which are connected to an information communicating network 2. The management device 4 is equipped with a data management server 5 for storing measured data in time-series; performing a predetermined arithmetical operation; and deriving management data, and a management terminal 7 for presenting the management data for a business administrator.
    Type: Application
    Filed: August 29, 2001
    Publication date: May 23, 2002
    Inventor: Akihiro Kawamura
  • Publication number: 20020051961
    Abstract: A device, system and method for providing information on an exercise, which is surmised to be possibly overcome by a user, from among a plurality of exercises requiring the user to deal with characters within a time predetermined individually. In an information providing system 1, a storage unit 3 stores data of the number of characters contained in sentences of examination questions for an examination as an exercise 5, a measuring unit 7 measures an ability to read characters of a user 2. On the basis of a result of the measurement, a retrieval unit 9 retrieves data of the examination such that the user can read through within the time which can be allocated for reading during the predetermined examination time. A result of the retrieval is output to the display unit 13 as an output unit 11 and an examination name is presented to the user 2. The user 2 can obtain information on the examination, which is surmised to be possibly passed, from among a large number of examinations.
    Type: Application
    Filed: September 27, 2001
    Publication date: May 2, 2002
    Inventor: Akihiro Kawamura
  • Publication number: 20020009700
    Abstract: A multiple listening training device which is novel and suitable for a training simultaneous listening to a plurality of audio exercises or video/audio exercises. In the multiple listening training device, a plurality of audio exercises, the contents of which are different from each other, are prepared and stored as sound data. The device plays back via an audio playback device one turn of audio material comprising a first part playing back simultaneously k pieces of audio exercises, a second part playing back simultaneously m pieces of audio exercises and a third part playing back simultaneously n pieces of audio exercises and the first part, the second part and the third part being arranged by time series. Wherein, k, m, n are integers not less than 1 and k<n<m.
    Type: Application
    Filed: May 18, 2001
    Publication date: January 24, 2002
    Inventor: Akihiro Kawamura
  • Patent number: 5595956
    Abstract: TTP dye sheets having a dye coat comprising a binder which comprises a mixture of a polyvinyl butyral polymer and a second polymer, at least 10% of the monomeric units of the second polymer being derived from parahydroxystyrene, the phenyl group of which may or may not be further substituted, are disclosed.
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: January 21, 1997
    Inventors: Andrew T. Slark, David W. Jarvis, Akihiro Kawamura