Patents by Inventor Ikuo Arata
Ikuo Arata 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).
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Publication number: 20230087835Abstract: The semiconductor failure analysis device includes: a light source configured to generate irradiation light with which the semiconductor device is irradiated; a solid immersion lens disposed on an optical path of the irradiation light; a light detection unit configured to receive reflected light and to output a detection signal according to the reflected light; an optical system 6 disposed between the light source and the solid immersion lens to emit the irradiation light to the semiconductor device via the solid immersion lens and disposed between the solid immersion lens and the light detection unit to emit the reflected light received via the solid immersion lens to the light detection unit. The light source emits the irradiation light having a center wavelength of 880 nm or more and 980 nm or less. The solid immersion lens is formed of GaAs.Type: ApplicationFiled: November 24, 2020Publication date: March 23, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Masataka IKESU, Ikuo ARATA, Yoshihiro ITO, Toshimichi ISHIZUKA
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Publication number: 20220333913Abstract: An optical unit includes an input portion configured to have measurement light having a wavelength extending from an ultraviolet region to a visible region input thereto, an optical system configured to condense the measurement light in a state where a chromatic aberration is caused to occur, and an opening portion configured not to image light having a wavelength in the visible region and to image light having a wavelength in the ultraviolet region of the measurement light having a chromatic aberration having occurred therein.Type: ApplicationFiled: August 31, 2020Publication date: October 20, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Ikuo ARATA, Satoshi TAKIMOTO, Kenichi OHTSUKA
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Publication number: 20220326501Abstract: A solid immersion lens unit includes a solid immersion lens and a holder for swingably holding the solid immersion lens. The solid immersion lens includes a first lens portion formed of a first material, and a second lens portion formed of a second material having a refractive index smaller than a refractive index of the first material and coupled to the first lens portion. The first lens portion includes a contact surface for contacting with an observation object and a convex first spherical surface. The second lens portion includes a concave second spherical surface facing the first spherical surface and a convex third spherical surface to be disposed to face an objective lens. The holder has a contact portion configured to be contactable with the third spherical surface.Type: ApplicationFiled: July 16, 2020Publication date: October 13, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tomonori NAKAMURA, Ikuo ARATA, Xiangguang MAO
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Publication number: 20210333216Abstract: A solid immersion lens unit includes a solid immersion lens having a contact surface for coming into contact with semiconductor device formed of a silicon substrate and a spherical surface to be disposed to face an objective lens; a holder holding the solid immersion lens; and an optical element held by the holder to be positioned between the objective lens and the solid immersion lens. The solid immersion lens transmits light having at least a part of wavelength in a range of 200 nm or greater and 1100 nm or lower. The optical element corrects aberration caused by a difference in refractive indices between the silicon substrate and the solid immersion lens.Type: ApplicationFiled: April 9, 2019Publication date: October 28, 2021Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Xiangguang MAO, Masanori KOBAYASHI, Hirotoshi TERADA, Ikuo ARATA, Masataka IKESU
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Publication number: 20200241275Abstract: An optical device for microscopic observation 4 comprises: a cold stop 13 having openings 13d, 13e corresponding to a low-magnification microscope optical system 5 and being a stop member arranged in a vacuum vessel 12 to let the light from the sample S pass to the camera 3; a warm stop 10 having an opening 14 corresponding to a high-magnification microscope optical system 5 and being a stop member arranged outside the vacuum vessel 12 to let the light from the sample S pass toward the cold stop 13; and a support member 11 supporting the warm stop 10 so that the warm stop can be inserted to or removed from on the optical axis of the light from the sample S, wherein the warm stop 10 has a reflective surface 15 on the camera 3 side and wherein the opening 14 is smaller than the openings 13d, 13e.Type: ApplicationFiled: April 17, 2020Publication date: July 30, 2020Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tomonori Nakamura, Ikuo Arata, Yoshihiro Ito
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Patent number: 10663709Abstract: An optical device for microscopic observation 4 comprises: a cold stop 13 having openings 13d, 13e corresponding to a low-magnification microscope optical system 5 and being a stop member arranged in a vacuum vessel 12 to let the light from the sample S pass to the camera 3; a warm stop 10 having an opening 14 corresponding to a high-magnification microscope optical system 5 and being a stop member arranged outside the vacuum vessel 12 to let the light from the sample S pass toward the cold stop 13; and a support member 11 supporting the warm stop 10 so that the warm stop can be inserted to or removed from on the optical axis of the light from the sample S, wherein the warm stop 10 has a reflective surface 15 on the camera 3 side and wherein the opening 14 is smaller than the openings 13d, 13e.Type: GrantFiled: July 2, 2018Date of Patent: May 26, 2020Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Tomonori Nakamura, Ikuo Arata, Yoshihiro Ito
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Patent number: 10558010Abstract: A solid immersion lens holder includes a first member having a first opening disposing a spherical face portion therein so that a part of the spherical face portion protrudes toward an objective lens side and a second member having a second opening disposing a contact portion therein so that a contact face protrudes toward a side opposite to the objective lens side. The first member includes three protrusion portions extending from an inner face of the first opening toward a center of the first opening and configured to be contactable with the spherical face portion.Type: GrantFiled: September 24, 2015Date of Patent: February 11, 2020Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Hirotoshi Terada, Ikuo Arata, Masataka Ikesu
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Patent number: 10545309Abstract: A solid immersion lens holder includes a first member having a first opening disposing a spherical face portion therein so that a part of the spherical face portion protrudes toward an objective lens side and a second member having a second opening disposing a contact portion therein so that a contact face protrudes toward a side opposite to the objective lens side. The first member includes three plate members disposed on the objective lens side with respect to the first opening. Each of the three plate members is provided with a protrusion portion capable of contacting the spherical face portion.Type: GrantFiled: September 24, 2015Date of Patent: January 28, 2020Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Hirotoshi Terada, Ikuo Arata, Masataka Ikesu
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Publication number: 20180307030Abstract: An optical device for microscopic observation 4 comprises: a cold stop 13 having openings 13d, 13e corresponding to a low-magnification microscope optical system 5 and being a stop member arranged in a vacuum vessel 12 to let the light from the sample S pass to the camera 3; a warm stop 10 having an opening 14 corresponding to a high-magnification microscope optical system 5 and being a stop member arranged outside the vacuum vessel 12 to let the light from the sample S pass toward the cold stop 13; and a support member 11 supporting the warm stop 10 so that the warm stop can be inserted to or removed from on the optical axis of the light from the sample S, wherein the warm stop 10 has a reflective surface 15 on the camera 3 side and wherein the opening 14 is smaller than the openings 13d, 13e.Type: ApplicationFiled: July 2, 2018Publication date: October 25, 2018Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tomonori NAKAMURA, Ikuo ARATA, Yoshihiro ITO
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Patent number: 10048483Abstract: An optical device for microscopic observation 4 comprises: a cold stop 13 having openings 13d, 13e corresponding to a low-magnification microscope optical system 5 and being a stop member arranged in a vacuum vessel 12 to let the light from the sample S pass to the camera 3; a warm stop 10 having an opening 14 corresponding to a high-magnification microscope optical system 5 and being a stop member arranged outside the vacuum vessel 12 to let the light from the sample S pass toward the cold stop 13; and a support member 11 supporting the warm stop 10 so that the warm stop can be inserted to or removed from on the optical axis of the light from the sample S, wherein the warm stop 10 has a reflective surface 15 on the camera 3 side and wherein the opening 14 is smaller than the openings 13d, 13e.Type: GrantFiled: June 30, 2016Date of Patent: August 14, 2018Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Tomonori Nakamura, Ikuo Arata, Yoshihiro Ito
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Publication number: 20170285296Abstract: A solid immersion lens holder includes a first member having a first opening disposing a spherical face portion therein so that a part of the spherical face portion protrudes toward an objective lens side and a second member having a second opening disposing a contact portion therein so that a contact face protrudes toward a side opposite to the objective lens side. The first member includes three plate members disposed on the objective lens side with respect to the first opening. Each of the three plate members is provided with a protrusion portion capable of contacting the spherical face portion.Type: ApplicationFiled: September 24, 2015Publication date: October 5, 2017Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Hirotoshi TERADA, Ikuo ARATA, Masataka IKESU
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Publication number: 20170235087Abstract: A solid immersion lens holder includes a first member having a first opening disposing a spherical face portion therein so that a part of the spherical face portion protrudes toward an objective lens side and a second member having a second opening disposing a contact portion therein so that a contact face protrudes toward a side opposite to the objective lens side. The first member includes three protrusion portions extending from an inner face of the first opening toward a center of the first opening and configured to be contactable with the spherical face portion.Type: ApplicationFiled: September 24, 2015Publication date: August 17, 2017Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Hirotoshi TERADA, Ikuo ARATA, Masataka IKESU
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Publication number: 20160313547Abstract: An optical device for microscopic observation 4 comprises: a cold stop 13 having openings 13d, 13e corresponding to a low-magnification microscope optical system 5 and being a stop member arranged in a vacuum vessel 12 to let the light from the sample S pass to the camera 3; a warm stop 10 having an opening 14 corresponding to a high-magnification microscope optical system 5 and being a stop member arranged outside the vacuum vessel 12 to let the light from the sample S pass toward the cold stop 13; and a support member 11 supporting the warm stop 10 so that the warm stop can be inserted to or removed from on the optical axis of the light from the sample S, wherein the warm stop 10 has a reflective surface 15 on the camera 3 side and wherein the opening 14 is smaller than the openings 13d, 13e.Type: ApplicationFiled: June 30, 2016Publication date: October 27, 2016Inventors: Tomonori NAKAMURA, Ikuo ARATA, Yoshihiro ITO
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Patent number: 9435734Abstract: A method for observing stem cells by an observation device 1 comprises, placing stem cells C in a petri dish 11, mounting the petri dish 11 on a waveguide 21 via water 13, emitting illumination light L1 into the waveguide 21 and emitting the illumination light L1 to the stem cells C in the petri dish 11 via the water 13, and detecting scattered light L2, the scattered light L2 being the illumination light L1 emitted to the stem cells C that is scattered by the stem cells C and has passed through the waveguide 21. Then, in the light image detected by means of the scattered light L2, a region that is markedly darker than other regions is identified as being in the state tending toward differentiation.Type: GrantFiled: July 23, 2015Date of Patent: September 6, 2016Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Norikazu Sugiyama, Takuji Kataoka, Ikuo Arata
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Patent number: 9411143Abstract: An optical device for microscopic observation 4 comprises: a cold stop 13 having openings 13d, 13e corresponding to a low-magnification microscope optical system 5 and being a stop member arranged in a vacuum vessel 12 to let the light from the sample S pass to the camera 3; a warm stop 10 having an opening 14 corresponding to a high-magnification microscope optical system 5 and being a stop member arranged outside the vacuum vessel 12 to let the light from the sample S pass toward the cold stop 13; and a support member 11 supporting the warm stop 10 so that the warm stop can be inserted to or removed from on the optical axis of the light from the sample S, wherein the warm stop 10 has a reflective surface 15 on the camera 3 side and wherein the opening 14 is smaller than the openings 13d, 13e.Type: GrantFiled: May 17, 2012Date of Patent: August 9, 2016Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Tomonori Nakamura, Ikuo Arata, Yoshihiro Ito
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Publication number: 20150323454Abstract: A method for observing stem cells by an observation device 1 comprises, placing stem cells C in a petri dish 11, mounting the petri dish 11 on a waveguide 21 via water 13, emitting illumination light L1 into the waveguide 21 and emitting the illumination light L1 to the stem cells C in the petri dish 11 via the water 13, and detecting scattered light L2, the scattered light L2 being the illumination light L1 emitted to the stem cells C that is scattered by the stem cells C and has passed through the waveguide 21. Then, in the light image detected by means of the scattered light L2, a region that is markedly darker than other regions is identified as being in the state tending toward differentiation.Type: ApplicationFiled: July 23, 2015Publication date: November 12, 2015Inventors: Norikazu SUGIYAMA, Takuji KATAOKA, Ikuo ARATA
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Patent number: 9134296Abstract: A method for observing stem cells by an observation device 1 comprises, placing stem cells C in a petri dish 11, mounting the petri dish 11 on a waveguide 21 via water 13, emitting illumination light L1 into the waveguide 21 and emitting the illumination light L1 to the stem cells C in the petri dish 11 via the water 13, and detecting scattered light L2, the scattered light L2 being the illumination light L1 emitted to the stem cells C that is scattered by the stem cells C and has passed through the waveguide 21. Then, in the light image detected by means of the scattered light L2, a region that is markedly darker than other regions is identified as being in the state tending toward differentiation.Type: GrantFiled: October 23, 2012Date of Patent: September 15, 2015Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Norikazu Sugiyama, Takuji Kataoka, Ikuo Arata
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Publication number: 20140287452Abstract: A method for observing stem cells by an observation device 1 comprises, placing stem cells C in a petri dish 11, mounting the petri dish 11 on a waveguide 21 via water 13, emitting illumination light L1 into the waveguide 21 and emitting the illumination light L1 to the stem cells C in the petri dish 11 via the water 13, and detecting scattered light L2, the scattered light L2 being the illumination light L1 emitted to the stem cells C that is scattered by the stem cells C and has passed through the waveguide 21. Then, in the light image detected by means of the scattered light L2, a region that is markedly darker than other regions is identified as being in the state tending toward differentiation.Type: ApplicationFiled: October 23, 2012Publication date: September 25, 2014Applicant: Hamamatsu Photonics K.K.Inventors: Norikazu Sugiyama, Takuji Kataoka, Ikuo Arata
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Publication number: 20140111848Abstract: An optical device for microscopic observation 4 comprises: a cold stop 13 having openings 13d, 13e corresponding to a low-magnification microscope optical system 5 and being a stop member arranged in a vacuum vessel 12 to let the light from the sample S pass to the camera 3; a warm stop 10 having an opening 14 corresponding to a high-magnification microscope optical system 5 and being a stop member arranged outside the vacuum vessel 12 to let the light from the sample S pass toward the cold stop 13; and a support member 11 supporting the warm stop 10 so that the warm stop can be inserted to or removed from on the optical axis of the light from the sample S, wherein the warm stop 10 has a reflective surface 15 on the camera 3 side and wherein the opening 14 is smaller than the openings 13d, 13e.Type: ApplicationFiled: May 17, 2012Publication date: April 24, 2014Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Tomonori Nakamura, Ikuo Arata, Yoshihiro Ito
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Patent number: 8619377Abstract: A solid immersion lens supporting device includes a lens holder 30 that holds a solid immersion lens 20 in a free state in which a lens bottom surface 22 protrudes downward through a lower opening 32 so as not to fix the solid immersion lens, and a lens cover 40 which is provided to an upper opening 31 of the lens holder 30, and in which a cover bottom surface 42 on the solid immersion lens 20 side is on a plane perpendicular to an optical axis, the lens cover coming into one-point contact with a spherical lens top surface 21 of the solid immersion lens 20. Further, the lens cover 40 is provided with a positioning portion which is capable of carrying out positioning of the solid immersion lens 20 with respect to the objective lens with reference to an image of the lens cover 40 observed via the objective lens. Thereby, the immersion lens supporting device which is capable of efficiently carrying out movement, installation, and positioning of the immersion lens onto a sample is realized.Type: GrantFiled: May 28, 2010Date of Patent: December 31, 2013Assignee: Hamamatsu Photonics K.K.Inventors: Ikuo Arata, Hirotoshi Terada, Toshimichi Ishizuka