Patents by Inventor Rei Kurashima

Rei Kurashima 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: 20230262312
    Abstract: A movable body includes an imaging system which acquires an image formed by a terahertz wave, wherein the image is an image obtained by capturing an inspection object inside the movable body.
    Type: Application
    Filed: April 26, 2023
    Publication date: August 17, 2023
    Inventors: Yasushi Koyama, Takahiro Sato, Takeaki Itsuji, Toshifumi Yoshioka, Eiichi Takami, Noriyuki Kaifu, Jun Iba, Rei Kurashima
  • Publication number: 20230258793
    Abstract: A processing system comprising a first imaging system configured to capture a first image based on a terahertz wave from an inspection target, a second imaging system configured to capture a second image of the inspection target based on an electromagnetic wave of a wavelength different from the terahertz wave, and a processor configured to process the first image and the second image, wherein the processor detects an inspection region based on the second image and processes information of a region of the first image corresponding to the inspection region.
    Type: Application
    Filed: April 24, 2023
    Publication date: August 17, 2023
    Inventors: Takeaki Itsuji, Takahiro Sato, Yasushi Koyama, Toshifumi Yoshioka, Eiichi Takami, Noriyuki Kaifu, Jun Iba, Rei Kurashima
  • Publication number: 20230150260
    Abstract: A liquid ejection apparatus includes: an ejection unit that ejects from an ejection port a liquid in a pressure chamber communicating with the ejection port; a first flow channel that allows for communication between the pressure chamber and a liquid supply unit; a second flow channel communicating with the pressure chamber; a liquid transportation chamber communicating with a connection flow channel communicating with the first flow channel and the second flow channel; a liquid transportation unit that flows the liquid in the liquid transportation chamber in a predetermined direction by expanding and contracting the liquid transportation chamber with application of a driving voltage including a step-up waveform and a step-down waveform; and a control unit that performs control such that a liquid ejection timing does not coincide with a voltage application period in which one of the step-up and step-down waveforms that has a greater voltage change rate is applied.
    Type: Application
    Filed: November 10, 2022
    Publication date: May 18, 2023
    Inventors: Rei Kurashima, Toru Nakakubo, Hiroyuki Ozaki
  • Patent number: 11607882
    Abstract: A liquid ejection module includes a pressure chamber, a supply flow channel that supplies a liquid to the pressure chamber, a collection flow channel that collects the liquid from the pressure chamber, a liquid feeding chamber connected to one of the supply flow channel and the collection flow channel, and a connection flow channel connecting the liquid feeding chamber to the other of the supply flow channel and the collection flow channel. The liquid feeding chamber includes a liquid feeding mechanism that circulates the liquid in the supply flow channel, the pressure chamber, the collection flow channel, the liquid feeding chamber, and the connection flow channel. A ratio of a sum of flow channel resistance of the supply flow channel, the pressure chamber, and the collection flow channel relative to flow channel resistance of the connection flow channel is equal to or above 0.5.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: March 21, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toru Nakakubo, Akihisa Iio, Rei Kurashima, Takahiro Akiyama, Hiroyuki Ozaki
  • Patent number: 11465415
    Abstract: In a case where air bubbles exist in ink at the time of circulating the ink within a liquid ejection module, the amount circulating ink runs short and stability of ejection is blocked. The liquid ejection module has: a pressure chamber that communicates with an ejection port and which stores a liquid; an energy generation element that produces energy for causing a liquid to be ejected from the ejection port; a supply flow path that supplies a liquid to the pressure chamber; a collecting channel that collects a liquid from the pressure chamber; a liquid sending chamber that connects to the collecting channel; a connection flow path that connects the liquid sending chamber and the supply flow path; and a liquid sending unit configured to circulate a liquid, and the liquid sending chamber has a continuously inclined structure.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: October 11, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Rei Kurashima, Hiroyuki Ozaki, Toru Nakakubo
  • Patent number: 11453213
    Abstract: A driving method enables a liquid feeding apparatus using a driving element in the form of a membrane to feed a liquid at high liquid feeding accuracy. To this end, a voltage applied to the driving element is controlled in such a way as to repeat a first period in which the voltage is changed from a first voltage to a second voltage and a second period which is a longer period than the first period and in which the voltage is changed from the second voltage to the first voltage, and such that an inflection point is provided in each predetermined interval during the first period based on a Helmholtz vibration period unique to the liquid feeding apparatus.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: September 27, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Rei Kurashima, Akihisa Iio, Takahiro Akiyama, Toru Nakakubo, Noriyuki Kaifu
  • Publication number: 20210394515
    Abstract: In a case where air bubbles exist in ink at the time of circulating the ink within a liquid ejection module, the amount circulating ink runs short and stability of ejection is blocked. The liquid ejection module has: a pressure chamber that communicates with an ejection port and which stores a liquid; an energy generation element that produces energy for causing a liquid to be ejected from the ejection port; a supply flow path that supplies a liquid to the pressure chamber; a collecting channel that collects a liquid from the pressure chamber; a liquid sending chamber that connects to the collecting channel; a connection flow path that connects the liquid sending chamber and the supply flow path; and a liquid sending unit configured to circulate a liquid, and the liquid sending chamber has a continuously inclined structure.
    Type: Application
    Filed: June 15, 2021
    Publication date: December 23, 2021
    Inventors: Rei Kurashima, Hiroyuki Ozaki, Toru Nakakubo
  • Publication number: 20210347172
    Abstract: A liquid ejection module includes a pressure chamber, a supply flow channel that supplies a liquid to the pressure chamber, a collection flow channel that collects the liquid from the pressure chamber, a liquid feeding chamber connected to one of the supply flow channel and the collection flow channel, and a connection flow channel connecting the liquid feeding chamber to the other of the supply flow channel and the collection flow channel. The liquid feeding chamber includes a liquid feeding mechanism that circulates the liquid in the supply flow channel, the pressure chamber, the collection flow channel, the liquid feeding chamber, and the connection flow channel. A ratio of a sum of flow channel resistance of the supply flow channel, the pressure chamber, and the collection flow channel relative to flow channel resistance of the connection flow channel is equal to or above 0.5.
    Type: Application
    Filed: July 20, 2021
    Publication date: November 11, 2021
    Inventors: Toru Nakakubo, Akihisa Iio, Rei Kurashima, Takahiro Akiyama, Hiroyuki Ozaki
  • Patent number: 11097536
    Abstract: A driving method enables a liquid feeding apparatus using a driving element in a membrane shape to feed a liquid at high liquid feeding accuracy. To this end, a voltage applied to the driving element is controlled in such a way as to repeat a first period in which a first voltage is applied and a second period which is a longer period than the first period and used to effect a change between the first voltage and a second voltage lower than the first voltage, and in such a way as to switch between application and non-application of the first voltage during the first period.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: August 24, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Rei Kurashima, Akihisa Iio, Takahiro Akiyama, Toru Nakakubo, Noriyuki Kaifu
  • Patent number: 11090935
    Abstract: A liquid ejection module includes a pressure chamber, a supply flow channel that supplies a liquid to the pressure chamber, a collection flow channel that collects the liquid from the pressure chamber, a liquid feeding chamber connected to one of the supply flow channel and the collection flow channel, and a connection flow channel connecting the liquid feeding chamber to the other of the supply flow channel and the collection flow channel. The liquid feeding chamber includes a liquid feeding mechanism that circulates the liquid in the supply flow channel, the pressure chamber, the collection flow channel, the liquid feeding chamber, and the connection flow channel. A ratio of a sum of flow channel resistance of the supply flow channel, the pressure chamber, and the collection flow channel relative to flow channel resistance of the connection flow channel is equal to or above 0.5.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: August 17, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toru Nakakubo, Akihisa Iio, Rei Kurashima, Takahiro Akiyama, Hiroyuki Ozaki
  • Publication number: 20200296266
    Abstract: A movable body includes an imaging system which acquires an image formed by a terahertz wave, wherein the image is an image obtained by capturing an inspection object inside the movable body.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 17, 2020
    Inventors: Yasushi Koyama, Takahiro Sato, Takeaki Itsuji, Toshifumi Yoshioka, Eiichi Takami, Noriyuki Kaifu, Jun Iba, Rei Kurashima
  • Publication number: 20200296265
    Abstract: A processing system comprising a first imaging system configured to capture a first image based on a terahertz wave from an inspection target, a second imaging system configured to capture a second image of the inspection target based on an electromagnetic wave of a wavelength different from the terahertz wave, and a processor configured to process the first image and the second image, wherein the processor detects an inspection region based on the second image and processes information of a region of the first image corresponding to the inspection region.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 17, 2020
    Inventors: Takeaki Itsuji, Takahiro Sato, Yasushi Koyama, Toshifumi Yoshioka, Eiichi Takami, Noriyuki Kaifu, Jun Iba, Rei Kurashima
  • Publication number: 20200293806
    Abstract: A camera system is provided. The camera system is arranged to form a part of a monitoring system arranged in a place of a facility where an inspection object lines up. The camera system comprises an imaging system configured to acquire an image formed by a terahertz wave reflected by the inspection object.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 17, 2020
    Inventors: Takahiro Sato, Yasushi Koyama, Takeaki Itsuji, Toshifumi Yoshioka, Eiichi Takami, Rei Kurashima, Jun Iba, Noriyuki Kaifu
  • Publication number: 20200207082
    Abstract: A driving method is provided which enables a liquid feeding apparatus using a driving element in a membrane shape to feed a liquid at high liquid feeding accuracy. To this end, a voltage applied to the driving element is controlled in such a way as to repeat a first period in which a first voltage is applied and a second period which is a longer period than the first period and used to effect a change between the first voltage and a second voltage lower than the first voltage, and in such a way as to switch between application and non-application of the first voltage during the first period.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 2, 2020
    Inventors: Rei Kurashima, Akihisa Iio, Takahiro Akiyama, Toru Nakakubo, Noriyuki Kaifu
  • Publication number: 20200207093
    Abstract: A liquid ejection module includes a pressure chamber, a supply flow channel that supplies a liquid to the pressure chamber, a collection flow channel that collects the liquid from the pressure chamber, a liquid feeding chamber connected to one of the supply flow channel and the collection flow channel, and a connection flow channel connecting the liquid feeding chamber to the other of the supply flow channel and the collection flow channel. The liquid feeding chamber includes a liquid feeding mechanism that circulates the liquid in the supply flow channel, the pressure chamber, the collection flow channel, the liquid feeding chamber, and the connection flow channel. A ratio of a sum of flow channel resistance of the supply flow channel, the pressure chamber, and the collection flow channel relative to flow channel resistance of the connection flow channel is equal to or above 0.5.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 2, 2020
    Inventors: Toru Nakakubo, Akihisa Iio, Rei Kurashima, Takahiro Akiyama, Hiroyuki Ozaki
  • Publication number: 20200207078
    Abstract: A driving method is provided which enables a liquid feeding apparatus using a driving element in a membrane shape to feed a liquid at high liquid feeding accuracy. To this end, a voltage applied to the driving element is controlled in such a way as to repeat a first period in which the voltage is changed from a first voltage to a second voltage and a second period which is a longer period than the first period and in which the voltage is changed from the second voltage to the first voltage, and such that an inflection point is provided to each predetermined interval during the first period based on a Helmholtz vibration period unique to the liquid feeding apparatus.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 2, 2020
    Inventors: Rei Kurashima, Akihisa Iio, Takahiro Akiyama, Toru Nakakubo, Noriyuki Kaifu
  • Publication number: 20150221809
    Abstract: A semiconductor device manufacturing method, comprising a first step of forming, on a silicon substrate, a member having an opening through which a portion of an upper surface of the silicon substrate is exposed so as to be an exposed face, and a second step of etching the member by supplying an etching gas containing XeF2 to the exposed face and the member, such that a thickness of the member increases in a direction away from the exposed face.
    Type: Application
    Filed: January 9, 2015
    Publication date: August 6, 2015
    Inventors: Rei Kurashima, Takayuki Sumida
  • Patent number: 8482194
    Abstract: A display apparatus includes a light emitting device emitting red light, a light emitting device emitting green light, and a light emitting device emitting blue light. The display apparatus includes a circular polarizer provided on the light extraction side of the light emitting devices. Each light emitting device includes a periodic structure for extracting light from the light extraction side of the light emitting device, the light being generated in a light emitting layer and guided in the in-plane direction of a substrate. Each period of the periodic structure of the light emitting devices is identical, and the period of the periodic structure is more than 200 nm and 380 nm or less.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: July 9, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Fukuda, Rei Kurashima, Hideo Mori
  • Publication number: 20100309098
    Abstract: Provided is an image display apparatus which achieves robustness of display characteristics (luminance and chromaticity) with respect to a film thickness unevenness, and in which an arbitrary one of pixels includes pixel groups (A and B) which have two characteristics and have a combination of film thicknesses in which: one of the film thicknesses is smaller and another one of the film thicknesses is larger than a film thickness at a peak of a curve in a protruding shape given by an intensity variation of emission luminance with respect to a film thickness variation of the pixel; and the one of the film thicknesses is smaller and the another one of the film thicknesses is larger than a film thickness at a peak of a curve in a protruding shape given by a chromaticity variation of at least one component of chromaticity (CIE x, CIE y) with respect to the film thickness variation of the pixel.
    Type: Application
    Filed: May 19, 2010
    Publication date: December 9, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Rei Kurashima, Koichi Fukuda
  • Publication number: 20100289038
    Abstract: A display apparatus includes a light emitting device emitting red light, a light emitting device emitting green light, and a light emitting device emitting blue light. The display apparatus includes a circular polarizer provided on the light extraction side of the light emitting devices. Each light emitting device includes a periodic structure for extracting light from the light extraction side of the light emitting device, the light being generated in a light emitting layer and guided in the in-plane direction of a substrate. Each period of the periodic structure of the light emitting devices is identical, and the period of the periodic structure is more than 200 nm and 380 nm or less.
    Type: Application
    Filed: May 10, 2010
    Publication date: November 18, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Koichi Fukuda, Rei Kurashima, Hideo Mori