Patents by Inventor Narihiro Yoshida

Narihiro Yoshida 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: 11970593
    Abstract: The present invention provides a hard coat film having excellent adhesion to a hard coat layer when a cycloolefin polymer film is used as a base material. The hard coat film of the present invention comprises a hard coat layer containing an ionizing radiation curable resin laminated on at least one surface of a cycloolefin polymer base film through a primer layer. This primer layer contains a modified polyolefin resin in which a polyolefin resin is graft-modified with an ?,?-unsaturated carboxylic acid or a derivative thereof, and a (meth)acrylic acid ester. In this modified polyolefin resin, the graft weight of the ?,?-unsaturated carboxylic acid or derivative thereof is 0.4 to 7 wt. % when the amount of the modified polyolefin resin is taken as 100 wt. %.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: April 30, 2024
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Takeo Suzuki, Narihiro Ilo, Takashi Ino, Yusuke Sugiyama, Yasuaki Yoshida, Takuya Takahashi, Syunji Sekiguchi
  • Patent number: 10379229
    Abstract: A radiation detector includes: a light detection panel that has a light-receiving unit, and a bonding pad that is electrically connected to the light-receiving unit; a scintillator layer that is provided on the light detection panel to cover the light-receiving unit; and a protective layer that is provided on the light detection panel to cover the scintillator layer. An outer edge portion of the protective layer has an adhesive portion that is in close contact with the light detection panel in a region between the scintillator layer and the bonding pad, and an extension that extends from the adhesive portion to an opposite side of the light detection panel in a self-supporting state.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: August 13, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Narihiro Yoshida, Syouji Kurebayashi, Kiyotaka Yoshida
  • Publication number: 20180074216
    Abstract: A radiation detector includes: a light detection panel that has a light-receiving unit, and a bonding pad that is electrically connected to the light-receiving unit; a scintillator layer that is provided on the light detection panel to cover the light-receiving unit; and a protective layer that is provided on the light detection panel to cover the scintillator layer. An outer edge portion of the protective layer has an adhesive portion that is in close contact with the light detection panel in a region between the scintillator layer and the bonding pad, and an extension that extends from the adhesive portion to an opposite side of the light detection panel in a self-supporting state.
    Type: Application
    Filed: February 1, 2016
    Publication date: March 15, 2018
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Narihiro YOSHIDA, Syouji KUREBAYASHI, Kiyotaka YOSHIDA
  • Patent number: 7057788
    Abstract: A chirp compensation dielectric multilayer film mirror (10) reflects an incident light in a predetermined wavelength range and has group delay characteristics that prevent at least one of the dielectric multilayer film mirror (10) and a light transmission portion from applying a phase disturbance to an incident light within the predetermined wavelength range. Therefore, all the wavelength components of the incident light in the predetermined wavelength range are reflected by the chirp compensation dielectric multilayer-film mirror (10), and no additional undesired phase disturbance occurs by the dielectric multilayer film mirror (10) and the light transmission portion. Accordingly, a spatial light modulator (1) enables a desired modulation only by a liquid crystal layer without giving an additional undesired phase disturbance to an output light.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: June 6, 2006
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Yasushi Ohbayashi, Narihiro Yoshida, Hideo Suzuki, Tsutomu Hara
  • Publication number: 20040012835
    Abstract: A chirp compensation dielectric multilayer film mirror (10) reflects an incident light in a predetermined wavelength range and has group delay characteristics that prevent at least one of the dielectric multilayer film mirror (10) and a light transmission portion from applying a phase disturbance to an incident light within the predetermined wavelength range. Therefore, all the wavelength components of the incident light in the predetermined wavelength range are reflected by the chirp compensation dielectric multilayer-film mirror (10), and no additional undesired phase disturbance occurs by the dielectric multilayer film mirror (10) and the light transmission portion. Accordingly, a spatial light modulator (1) enables a desired modulation only by a liquid crystal layer without giving an additional undesired phase disturbance to an output light.
    Type: Application
    Filed: April 25, 2003
    Publication date: January 22, 2004
    Inventors: Yasushi Ohbayashi, Narihiro Yoshida, Hideo Suzuki, Tsutomu Hara
  • Patent number: 6573953
    Abstract: In a spatial light modulation device using a reflection type spatial light modulator, read light is a P-polarized light that falls incident on the light reflection layer 17 at a slant. Liquid crystal in the light modulation layer 17 is oriented so as to incline, in association with the application of voltage by the driving circuit 2, within a plane that is parallel to a normal plane which includes the optical axes of both of the incident, read light and the output, modulated light.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: June 3, 2003
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Yasunori Igasaki, Narihiro Yoshida, Haruyoshi Toyoda
  • Patent number: 6560001
    Abstract: A spatial light modulating device includes: an electrically-addressed type element for being addressed by electric signals representing information to be written, the electrically-addressed type element including an image display portion having a pixel structure, the electrically-addressed type element being inputted with write light; an optically-addressed type spatial light modulator including a thin film material portion and a pair of substrates, the thin film material portion being provided between the pair of substrates, the thin film material portion having an optical addressing layer and a light modulation layer which are provided one on the other, the optically-addressed type spatial light modulator being inputted with read light; and a compensation layer having a predetermined thickness and provided between the image display portion and the thin film material portion.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: May 6, 2003
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Yasunori Igasaki, Narihiro Yoshida, Haruyoshi Toyoda, Tsutomu Hara
  • Patent number: 6348990
    Abstract: A signal image is transmitted by write light from a transmission type liquid crystal element 4 to an optically-addressed type parallel-aligned nematic-liquid-crystal spatial light modulator 6. The numerical aperture NAL of a relay lens 5, the pitch P of the pixel structure of the transmission type liquid crystal element 4, and the wavelength &lgr; of light from the write light source 1 are set with the condition 1/2P<NAL/&lgr;<1/P. As a result, the signal component caused by the pixel structure can be erased. Furthermore, no degradation is generated in the entire range of the spatial frequencies of the signal image that can be produced by the transmission type liquid crystal element 4.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: February 19, 2002
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Yasunori Igasaki, Narihiro Yoshida, Haruyoshi Toyoda, Tsutomu Hara
  • Patent number: 5841489
    Abstract: In a spatial light modulator of the present invention, a photoconductive layer formed of photoconductive material receives write light having a spatial distribution in its intensity and changes resistivity of the photoconductive material dependently on the spatial distribution in the intensity of the received write light. A liquid crystal layer formed of liquid crystal molecules of nematic phase receives read light and presents birefringence with respect to the received read light. An electric voltage is applied through the photoconductive layer and the liquid crystal layer to thereby produce an electric field in the liquid crystal layer. The photoconductive layer changes the electric field produced in the liquid crystal layer in accordance with the resistivity of the photoconductive material so as to electrically control the birefringence of the liquid crystal molecules.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: November 24, 1998
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Narihiro Yoshida, Naohisa Mukohzaka, Haruyoshi Toyoda, Terushige Hori, Yuji Kobayashi, Tsutomu Hara
  • Patent number: 5617203
    Abstract: In an optical detector, a light source irradiates coherent light onto an objective. A Fourier transform lens receives the light diffracted and scattered at the objective and Fourier transforms the light to generate a Fourier image, the Fourier image having a high intensity spectral component corresponding to the periodic pattern on the objective and a low intensity spectral component corresponding to the abnormal portion. In an optically-addressed spatial light modulator, each of the optically-addressing part and the light modulating part receives the Fourier image at the corresponding portions.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: April 1, 1997
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Yuji Kobayashi, Narihiro Yoshida, Naohisa Mukohzaka, Haruyoshi Toyoda, Tsutomu Hara
  • Patent number: 5546181
    Abstract: In an optical detector, a light source irradiates coherent light onto an objective. A Fourier transform lens receives the light diffracted and scattered at the objective and Fourier transforms the light to generate a Fourier image, the Fourier image having a high intensity spectral component corresponding to the periodic pattern on the objective and a low intensity spectral component corresponding to the abnormal portion. In an optically-addressed spatial light modulator, each of the optically-addressing part and the light modulating part receives the Fourier image at the corresponding portions.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: August 13, 1996
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Yuji Kobayashi, Narihiro Yoshida, Naohisa Mukohzaka, Haruyoshi Toyoda, Tsutomu Hara
  • Patent number: 5166742
    Abstract: An object is typically illuminated by laser light, and reflected light carrying a speckle pattern is amplified by an image intensifier. First and second speckle patterns representing the object before and after its deformation, respectively are written by double writing into a ferroelectric liquid crystal spatial light modulator (FLC-SLM). The double-written image is read out from the FLC-SLM, and converted by a Fourier transform optical system into an output optical image, i.e., Young's fringe. The output optical image is detected by a photoelectric converter, and analyzed by an image processing device to determine a deformation of the object.
    Type: Grant
    Filed: August 23, 1991
    Date of Patent: November 24, 1992
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Yuji Kobayashi, Tamiki Takemori, Tsutomu Hara, Naohisa Mukohzaka, Narihiro Yoshida