Patents by Inventor Tsukasa Ikeda

Tsukasa Ikeda 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: 20240148288
    Abstract: A controller of a biological information measurement device performs time-frequency analysis on a first light-receiving signal based on red light, a second light-receiving signal based on infrared light, and a third light-receiving signal based on green light, determines a pulsation band including a frequency of a pulse wave by the time-frequency analysis on the third light-receiving signal, detects a first light-receiving signal intensity of the pulsation band and a second light-receiving signal intensity of the pulsation band, and calculates a fluctuation component ratio between a red light transmitted amount and an infrared light transmitted amount by using the first light-receiving signal intensity and the second light-receiving signal intensity.
    Type: Application
    Filed: November 8, 2023
    Publication date: May 9, 2024
    Inventors: Akira IKEDA, Tsukasa EGUCHI
  • Publication number: 20220054116
    Abstract: A blood vessel harvesting system, which harvests blood vessels in a state of being covered by surrounding tissue, includes a separating device and a display device. The separating device includes a rod portion that is inserted into a living body, an optically transparent taper-shaped separating portion that is disposed at a distal end part of the rod portion, an endoscope portion that is disposed inside the rod portion and captures an endoscope image of an interior of the living body via the separating portion, and an ultrasound transceiver portion that is disposed on an outer peripheral surface of the rod portion, irradiates the interior of the living body with an ultrasonic wave, and receives a reflected wave from the interior of the living body.
    Type: Application
    Filed: December 17, 2019
    Publication date: February 24, 2022
    Inventor: Tsukasa Ikeda
  • Patent number: 9868669
    Abstract: A precious metal clay regeneration solution contains water and a liquid paraffin, in which an amount of the liquid paraffin is more than or equal to 0.12 parts by mass and less than or equal to 60 parts by mass with respect to 100 parts by mass of the water. A method for regenerating precious metal clay includes a step of bringing water and a liquid paraffin into contact with a solidified precious metal clay, in which an amount of the liquid paraffin is more than or equal to 0.12 parts by mass and less than or equal to 60 parts by mass with respect to 100 parts by mass of the water.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: January 16, 2018
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Yoshifumi Yamamoto, Yasuo Ido, Tsukasa Ikeda
  • Publication number: 20170088468
    Abstract: A precious metal clay regeneration solution contains water and a liquid paraffin, in which an amount of the liquid paraffin is more than or equal to 0.12 parts by mass and less than or equal to 60 parts by mass with respect to 100 parts by mass of the water. A method for regenerating precious metal clay includes a step of bringing water and a liquid paraffin into contact with a solidified precious metal clay, in which an amount of the liquid paraffin is more than or equal to 0.12 parts by mass and less than or equal to 60 parts by mass with respect to 100 parts by mass of the water.
    Type: Application
    Filed: September 21, 2016
    Publication date: March 30, 2017
    Inventors: Yoshifumi Yamamoto, Yasuo Ido, Tsukasa Ikeda
  • Publication number: 20160001363
    Abstract: A clay-like composition for forming a sintered precious metal body, the clay-like composition containing at least a precious metal powder and/or a precious metal alloy powder, an organic binder, an organic additive, and water, wherein the organic additive is from 0.1 to 3.0 mass % of propylene glycol. The clay-like composition has excellent bendability, even after drying during shaping, and as a result, there are minimal time restrictions during working of the composition by bending and the like.
    Type: Application
    Filed: March 27, 2014
    Publication date: January 7, 2016
    Inventors: Yoshifumi Yamamoto, Yasuo Ido, Tsukasa Ikeda, Shinji Otani
  • Patent number: 8293826
    Abstract: An aliphatic polyester resin composition of improved moisture resistance formed by adding a phosphoric or phosphorous acid ester having a basicity of at most 1.4 of a saturated aliphatic alcohol having 8-24 carbon atoms.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: October 23, 2012
    Assignee: Kureha Corporation
    Inventors: Yuki Hokari, Tsukasa Ikeda, Kazuyuki Yamane
  • Patent number: 7807088
    Abstract: Polyvinylidene fluoride resin powder for melt molding, which exhibits such particle size distribution characteristics that the average particle diameter (D50) is 80 to 250 ?m, the proportion of resin powder having a particle diameter of at most 45 ?m is at most 15.0% by weight, and the proportion of resin powder having a particle diameter of at least 355 ?m is at most 10.0% by weight, and has a bulk density of 0.30 to 0.80 g/cm3 and an angle of repose of at most 40°, and a process for producing a molding, which comprises feeding the resin powder to an injection molding machine or extrusion molding machine, melting the resin powder, and injecting the resin melt into a mold.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: October 5, 2010
    Assignee: Kureha Corporation
    Inventors: Tsukasa Ikeda, Yasuhiro Suzuki, Kenichi Iwabuchi, Takumi Katsurao
  • Publication number: 20080167409
    Abstract: An aliphatic polyester resin composition of improved moisture resistance formed by adding a phosphoric or phosphorous acid ester having a basicity of at most 1.4 of a saturated aliphatic alcohol having 8-24 carbon atoms.
    Type: Application
    Filed: February 9, 2006
    Publication date: July 10, 2008
    Inventors: Yuki Hokari, Tsukasa Ikeda, Kazuyuki Yamane
  • Publication number: 20070290407
    Abstract: Polyvinylidene fluoride resin powder for melt molding, which exhibits such particle size distribution characteristics that the average particle diameter (D50) is 80 to 250 ?m, the proportion of resin powder having a particle diameter of at most 45 ?m is at most 15.0% by weight, and the proportion of resin powder having a particle diameter of at least 355 ?m is at most 10.0% by weight, and has a bulk density of 0.30 to 0.80 g/cm3 and an angle of repose of at most 40°, and a process for producing a molding, which comprises feeding the resin powder to an injection molding machine or extrusion molding machine, melting the resin powder, and injecting the resin melt into a mold.
    Type: Application
    Filed: October 13, 2005
    Publication date: December 20, 2007
    Inventors: Tsukasa Ikeda, Yasuhiro Suzuki, Kenichi Iwabuchi, Takumi Katsurao
  • Patent number: 7208555
    Abstract: The present invention provides a polyvinylidene fluoride copolymer capable of forming a uniform film, a solution of the copolymer and a thin film comprising the polyvinylidene fluoride copolymer. The polyvinylidene fluoride copolymer of the present invention is characterized in that the ratio of the scattered-light intensity (I) for a 15% solution of the polyvinylidene fluoride copolymer in dimethylformamide solvent to the scattered-light intensity (I0) for dimethylformamide, (I/I0), is 10 or lower. The polyvinylidene fluoride copolymer solution comprises the polyvinylidene fluoride copolymer and an organic solvent capable of dissolving the copolymer.
    Type: Grant
    Filed: September 17, 2003
    Date of Patent: April 24, 2007
    Assignee: Kureha Chemical Industry Company, Limited
    Inventors: Masahito Tada, Takumi Katsurao, Tsukasa Ikeda, Kazuyuki Suzuki
  • Patent number: 7067074
    Abstract: A near infrared absorptive composition of the present invention contains phosphate compounds represented by Formula (8)-c and Formula (8)-d below; and copper ions. An optical material of the present invention is a material wherein the near infrared absorptive composition is mixed in a resin.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: June 27, 2006
    Assignee: Kureha Corporation
    Inventors: Tsukasa Ikeda, Hiroki Katono, Masuhiro Syouji, Katsuichi Machida
  • Publication number: 20050245708
    Abstract: The present invention provides a polyvinylidene fluoride copolymer capable of forming a uniform film, a solution of the copolymer and a thin film comprising the polyvinylidene fluoride copolymer. The polyvinylidene fluoride copolymer of the present invention is characterized in that the ratio of the scattered-light intensity (I) for a 15% solution of the polyvinylidene fluoride copolymer in dimethylformamide solvent to the scattered-light intensity (I0) for dimethylformamide, (I/I0), is 10 or lower. The polyvinylidene fluoride copolymer solution comprises the polyvinylidene fluoride copolymer and an organic solvent capable of dissolving the copolymer.
    Type: Application
    Filed: September 17, 2003
    Publication date: November 3, 2005
    Inventors: Masahito Tada, Takumi Katsurao, Tsukasa Ikeda, Kazuyuki Suzuki
  • Publication number: 20030160217
    Abstract: A near infrared absorptive composition of the present invention contains phosphate compounds represented by Formula (8)-c and Formula (8)-d below; 1
    Type: Application
    Filed: October 9, 2002
    Publication date: August 28, 2003
    Inventors: Tsukasa Ikeda, Hiroki Katono, Masuhiro Syouji, Katsuichi Machida
  • Patent number: 5479706
    Abstract: A method for easy and reliable manufacture of a silencer constructed with a multi-perforated inner tube and an outer tube, between which a sound-absorbing material such as glass wool, etc. is filled in, without use of a binding agent, etc. . . .
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: January 2, 1996
    Assignee: Sankei Giken Kogyo Kabushiki Kaisha
    Inventors: Akihiko Tamano, Tsukasa Ikeda
  • Patent number: 5461777
    Abstract: The invention is directed to a method for easy and reliable manufacture of a silencer constructed with a multi-perforated inner tube and an outer tube, between which a sound-absorbing material such as glass wool, etc. is filled in, without use of a binding agent, etc. The invention is also directed to provide an apparatus for use in the manufacture of such silencer.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: October 31, 1995
    Assignee: Sankei Giken Kogyo Kabushiki Kaisha
    Inventors: Tsukasa Ikeda, Akihiko Tamano