Patents by Inventor Takashi Kasahara
Takashi Kasahara 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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Patent number: 11947140Abstract: A suction method is provided as a method of performing, by using a suction collet, suction of a Fabry-Perot interference filter including a substrate and a laminated structure that is provided on the substrate and that includes a main surface facing the side opposite to the substrate, the method including a first step of arranging the suction collet so as to face the main surface, a second step of bringing the suction collet into contact with the Fabry-Perot interference filter after the first step, and a third step of suctioning the Fabry-Perot interference filter by using the suction collet after the second step.Type: GrantFiled: November 9, 2018Date of Patent: April 2, 2024Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Masaki Hirose, Katsumi Shibayama, Takashi Kasahara, Toshimitsu Kawai, Hiroki Oyama, Yumi Kuramoto
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Publication number: 20240019304Abstract: A light detection device includes: a Fabry-Perot interference filter provided with a light transmission region; a light detector configured to detect light transmitted through the light transmission region; a package having an opening and accommodating the Fabry-Perot interference filter and the light detector; and a light transmitting unit arranged on an inner surface of the package so as to close an opening, the light transmitting unit including a band pass filter configured to transmit light incident on the light transmission region. When viewed from a direction parallel to the line, an outer edge of the Fabry-Perot interference filter is positioned outside an outer edge of the opening, and an outer edge of the light transmitting unit is positioned outside the outer edge of the Fabry-Perot interference filter.Type: ApplicationFiled: September 27, 2023Publication date: January 18, 2024Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Masaki HIROSE, Katsumi SHIBAYAMA, Takashi KASAHARA, Toshimitsu KAWAI, Hiroki OYAMA, Yumi TERAMACHI
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Patent number: 11865701Abstract: A suction method is provided as a method of performing, by using a suction collet, suction of a Fabry-Perot interference filter including: a substrate; a laminated structure that is provided on the substrate and that includes a main surface facing a side opposite to the substrate; and a thinned portion that is located outside the laminated structure when viewed in a direction intersecting the main surface and that is recessed to a side of the substrate with respect to the main surface, the method including: a first step of arranging the suction collet so as to face the main surface; a second step of bringing the suction collet into contact with the Fabry-Perot interference filter after the first step; and a third step of suctioning the Fabry-Perot interference filter by using the suction collet after the second step.Type: GrantFiled: November 9, 2018Date of Patent: January 9, 2024Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Masaki Hirose, Katsumi Shibayama, Takashi Kasahara, Toshimitsu Kawai, Hiroki Oyama, Yumi Kuramoto
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Patent number: 11835388Abstract: A light detection device includes: a Fabry-Perot interference filter provided with a light transmission region; a light detector configured to detect light transmitted through the light transmission region; a package having an opening and accommodating the Fabry-Perot interference filter and the light detector; and a light transmitting unit arranged on an inner surface of the package so as to close an opening, the light transmitting unit including a band pass filter configured to transmit light incident on the light transmission region. When viewed from a direction parallel to the line, an outer edge of the Fabry-Pert interference filter is positioned outside an outer edge of the opening, and an outer edge of the light transmitting unit is positioned outside the outer edge of the Fabry-Perot interference filter.Type: GrantFiled: April 8, 2020Date of Patent: December 5, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Masaki Hirose, Katsumi Shibayama, Takashi Kasahara, Toshimitsu Kawai, Hiroki Oyama, Yumi Teramachi
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Publication number: 20230358610Abstract: A light detection device of the present invention includes: a wiring board; a first support part disposed on a mounting surface of the wiring board; a Fabry-Perot interference filter having a first mirror part and a second mirror part between which a distance is variable and having an outer edge portion disposed in a first support region of the first support part; a light detector disposed on the mounting surface to face the first mirror part and the second mirror part on one side of the first support part; and a temperature detector disposed on the mounting surface, wherein the temperature detector is disposed on the mounting surface such that at least a part of the temperature detector overlaps a part of the Fabry-Perot interference filter when seen in a first direction perpendicular to the mounting surface and such that at least a part of the temperature detector overlaps a part of the first support part when seen in a second direction in which the first support part and the light detector are aligned withType: ApplicationFiled: July 18, 2023Publication date: November 9, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takashi KASAHARA, Katsumi SHIBAYAMA, Kei TABATA, Masaki HIROSE, Hiroki OYAMA, Yumi KURAMOTO
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Patent number: 11796391Abstract: A light detection device includes: a first support part disposed on a mounting surface of the wiring board; a Fabry-Perot interference filter disposed in a first support region of the first support part; and a temperature detector, wherein the temperature detector is disposed on the mounting surface such that at least a part of the temperature detector overlaps a part of the Fabry-Perot interference filter when seen in a first direction perpendicular to the mounting surface and such that at least a part of the temperature detector overlaps a part of the first support part when seen in a second direction in which the first support part and the light detector are aligned with each other, and wherein a first distance between the temperature detector and the first support part in the second direction is smaller than a first width of the first support region in the second direction.Type: GrantFiled: October 6, 2020Date of Patent: October 24, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Takashi Kasahara, Katsumi Shibayama, Kei Tabata, Masaki Hirose, Hiroki Oyama, Yumi Kuramoto
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Publication number: 20230118479Abstract: A transportation method for transporting an object including a plurality of Fabry-Perot interference filters, the transportation method including a first step of accommodating the object in an accommodating container, wherein the Fabry-Perot interference filter includes a substrate, a first mirror portion and a second mirror portion provided on the substrate to face each other via a gap and in which a distance from each other is variable, and in the first step, the object is accommodated and supported in the accommodating container in a state where the plurality of Fabry-Perot interference filters is two-dimensionally arranged.Type: ApplicationFiled: December 16, 2022Publication date: April 20, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Hiroki OYAMA, Katsumi SHIBAYAMA, Takashi KASAHARA, Masaki HIROSE, Toshimitsu KAWAI, Yumi KURAMOTO
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Publication number: 20230122733Abstract: A transportation method for transporting an object including a plurality of Fabry-Perot interference filters, the transportation method including a first step of accommodating the object in an accommodating container, wherein the Fabry-Perot interference filter includes a substrate, a first mirror portion and a second mirror portion provided on the substrate to face each other via a gap and in which a distance from each other is variable, and in the first step, the object is accommodated and supported in the accommodating container in a state where the plurality of Fabry-Perot interference filters is two-dimensionally arranged.Type: ApplicationFiled: December 16, 2022Publication date: April 20, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Hiroki Oyama, Katsumi Shibayama, Takashi Kasahara, Masaki Hirose, Toshimitsu Kawai, Yumi Kuramoto
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Patent number: 11624902Abstract: A wafer includes a substrate layer, a first mirror layer having a plurality of two-dimensionally arranged first mirror portions, and a second mirror layer having a plurality of two-dimensionally arranged second mirror portions. In the wafer, a gap is formed between the first mirror portion and the second mirror portion so as to form a plurality of Fabry-Perot interference filter portions. A wafer inspection method according to an embodiment includes a step of performing faulty/non-faulty determination of each of the plurality of Fabry-Perot interference filter portions, and a step of applying ink to at least part of a portion overlapping the gap when viewed in a facing direction on the second mirror layer of the Fabry-Perot interference filter portion determined as faulty.Type: GrantFiled: November 9, 2018Date of Patent: April 11, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Yumi Kuramoto, Katsumi Shibayama, Takashi Kasahara, Masaki Hirose, Toshimitsu Kawai, Hiroki Oyama
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Patent number: 11609420Abstract: A wafer includes a substrate layer, a first mirror layer having a plurality of two-dimensionally arranged first mirror portions, and a second mirror layer having a plurality of two-dimensionally arranged second mirror portions. A plurality of Fabry-Perot interference filter portions are formed in an effective area, in each of the plurality of Fabry-Perot interference filter portions a gap is formed between the first mirror portion and the second mirror portion. A plurality of dummy filter portions are formed in a dummy area disposed along an outer edge of the substrate layer and surrounding the effective area, in each of the plurality of dummy filter portions an intermediate layer is provided between the first mirror portion and the second mirror portion. At least the second mirror portion is surrounded by the first groove in each of the plurality of Fabry-Perot interference filter portions and the plurality of dummy filter portions.Type: GrantFiled: July 11, 2022Date of Patent: March 21, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Toshimitsu Kawai, Katsumi Shibayama, Takashi Kasahara, Masaki Hirose, Hiroki Oyama, Yumi Kuramoto
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Publication number: 20230070687Abstract: An immersion objective includes a first lens group including a meniscus lens, a second lens group including a cemented lens and having a positive power, and a third lens group having a negative power. The third lens group is formed of a front group having a concave surface on a most image side and a back group having a concave surface on the most object side. Even when any of a plurality of immersion liquids used together with the immersion microscope objective is used, an amount of chromatic aberration at each of wavelengths in a range from 435.18 nm to 656.13 nm, which has an e-line as a reference, is smaller than a magnitude of depth of focus of the immersion microscope objective at the wavelength. The immersion microscope objective satisfies a following conditional expression. 0.64?NA×WD?3.Type: ApplicationFiled: August 17, 2022Publication date: March 9, 2023Applicant: Evident CorporationInventor: Takashi KASAHARA
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Patent number: 11592332Abstract: A transportation method for transporting an object including a plurality of Fabry-Perot interference filters, the transportation method including a first step of accommodating the object in an accommodating container, wherein the Fabry-Perot interference filter includes a substrate, a first mirror portion and a second mirror portion provided on the substrate to face each other via a gap and in which a distance from each other is variable, and in the first step, the object is accommodated and supported in the accommodating container in a state where the plurality of Fabry-Perot interference filters is two-dimensionally arranged.Type: GrantFiled: November 9, 2018Date of Patent: February 28, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Hiroki Oyama, Katsumi Shibayama, Takashi Kasahara, Masaki Hirose, Toshimitsu Kawai, Yumi Kuramoto
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Publication number: 20230041766Abstract: A schedule creation method is a method for creating a time schedule by executing a learning step multiple times. The learning step includes sequentially placing patterns each indicating a procedure in a processing sequence in a timetable for defining a time schedule for respective elements of a substrate processing apparatus. The sequentially placing patterns in a timetable includes: acquiring one or more placeable patterns that are allowed to be placed in the timetable from among the patterns based on a prescribed constraint condition; predicting and selecting through machine learning a pattern that makes an evaluation value maximum from among the one or more placeable patterns; and updating the timetable by placing the selected pattern in the timetable.Type: ApplicationFiled: July 29, 2022Publication date: February 9, 2023Inventors: Jun Kawai, Takashi Kasahara, Keisuke Inugai
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Patent number: 11555740Abstract: A transportation method for transporting an object including a plurality of Fabry-Perot interference filters, the transportation method including a first step of accommodating the object in an accommodating container, wherein the Fabry-Perot interference filter includes a substrate, a first mirror portion and a second mirror portion provided on the substrate to face each other via a gap and in which a distance from each other is variable, and in the first step, the object is accommodated and supported in the accommodating container in a state where the plurality of Fabry-Perot interference filters is two-dimensionally arranged.Type: GrantFiled: November 9, 2018Date of Patent: January 17, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Hiroki Oyama, Katsumi Shibayama, Takashi Kasahara, Masaki Hirose, Toshimitsu Kawai, Yumi Kuramoto
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Patent number: 11555741Abstract: A light detection device includes a Fabry-Perot interference filter, a light detector, a spacer that has a placement surface on which a portion outside a light transmission region in a bottom surface of the interference filter is placed, and an adhesive member that adheres the interference filter and the spacer to each other. Elastic modulus of the adhesive member is smaller than elastic modulus of the spacer. At least a part of a lateral surface of the interference filter is located on the placement surface such that a part of the placement surface of the spacer is disposed outside the lateral surface. The adhesive member is disposed in a corner portion formed by the lateral surface of the interference filter and the part of the placement surface of the spacer and contacts each of the lateral surface and the part of the placement surface.Type: GrantFiled: August 10, 2021Date of Patent: January 17, 2023Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Masaki Hirose, Katsumi Shibayama, Takashi Kasahara, Toshimitsu Kawai, Takehiko Yashiro, Mitsushi Mineno, Shigeru Suzuki
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Publication number: 20220350131Abstract: A wafer includes a substrate layer, a first mirror layer having a plurality of two-dimensionally arranged first mirror portions, and a second mirror layer having a plurality of two-dimensionally arranged second mirror portions. A plurality of Fabry-Perot interference filter portions are formed in an effective area, in each of the plurality of Fabry-Perot interference filter portions a gap is formed between the first mirror portion and the second mirror portion. A plurality of dummy filter portions are formed in a dummy area disposed along an outer edge of the substrate layer and surrounding the effective area, in each of the plurality of dummy filter portions an intermediate layer is provided between the first mirror portion and the second mirror portion. At least the second mirror portion is surrounded by the first groove in each of the plurality of Fabry-Perot interference filter portions and the plurality of dummy filter portions.Type: ApplicationFiled: July 11, 2022Publication date: November 3, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Toshimitsu KAWAI, Katsumi Shibayama, Takashi Kasahara, Masaki Hirose, Hiroki Oyama, Yumi Kuramoto
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Publication number: 20220341780Abstract: A light detection device includes: a first support part disposed on a mounting surface of the wiring board; a Fabry-Perot interference filter disposed in a first support region of the first support part; and a temperature detector, wherein the temperature detector is disposed on the mounting surface such that at least a part of the temperature detector overlaps a part of the Fabry-Perot interference filter when seen in a first direction perpendicular to the mounting surface and such that at least a part of the temperature detector overlaps a part of the first support part when seen in a second direction in which the first support part and the light detector are aligned with each other, and wherein a first distance between the temperature detector and the first support part in the second direction is smaller than a first width of the first support region in the second direction.Type: ApplicationFiled: October 6, 2020Publication date: October 27, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takashi KASAHARA, Katsumi SHIBAYAMA, Kei TABATA, Masaki HIROSE, Hiroki OYAMA, Yumi KURAMOTO
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Patent number: 11480783Abstract: An optical filter system includes a Fabry-Perot interference filter, and a controller that controls the Fabry-Perot interference filter. The Fabry-Perot interference filter includes a first mirror portion, a second mirror portion, a first driving electrode and a first monitor electrode provided with the first mirror portion, and a second driving electrode and a second monitor electrode provided with the second mirror portion. The controller includes a control unit that calculates an electrostatic capacitance between the first mirror portion and the second mirror portion based on an alternating voltage generated between the first monitor electrode and the second monitor electrode while an alternating current is applied between the first monitor electrode and the second monitor electrode.Type: GrantFiled: June 12, 2018Date of Patent: October 25, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Helmut Teichmann, Andreas Durandi, Peter Seitz, Takashi Kasahara, Katsumi Shibayama
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Publication number: 20220333988Abstract: A light detection device includes a Fabry-Perot interference filter provided with a light transmitting region on a predetermined line, a light detector disposed on one side with respect to the Fabry-Perot interference filter on the line, a package having an opening positioned on the other side with respect to the Fabry-Perot interference filter on the line, a light transmitting member provided in the package such that the opening is blocked, and a temperature control element having an endothermic region thermally connected to the Fabry-Perot interference filter and the light detector. The endothermic region is positioned on one side with respect to the light detector on the line.Type: ApplicationFiled: June 23, 2022Publication date: October 20, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Masaki HIROSE, Katsumi SHIBAYAMA, Takashi KASAHARA, Toshimitsu KAWAI, Hiroki OYAMA
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Patent number: 11448553Abstract: A light detection device includes a Fabry-Perot interference filter provided with a light transmitting region on a predetermined line, a light detector disposed on one side with respect to the Fabry-Perot interference filter on the line, a package having an opening positioned on the other side with respect to the Fabry-Perot interference filter on the line, a light transmitting member provided in the package such that the opening is blocked, and a temperature control element having an endothermic region thermally connected to the Fabry-Perot interference filter and the light detector. The endothermic region is positioned on one side with respect to the light detector on the line.Type: GrantFiled: March 3, 2017Date of Patent: September 20, 2022Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Masaki Hirose, Katsumi Shibayama, Takashi Kasahara, Toshimitsu Kawai, Hiroki Oyama