Patents by Inventor Masashi SUEMATSU
Masashi SUEMATSU 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: 11187890Abstract: A movable diffraction element and a spectroscope. The movable diffraction element includes a movable component having a comb-like shape, a supporting unit configured to support the movable component, a first cantilever actuator coupled to the supporting unit, a displacement determiner coupled to an edge of the first cantilever actuator, and a second cantilever actuator disposed parallel to the first cantilever actuator. In the movable diffraction element, a slope generated when the second cantilever actuator deforms is approximately equivalent to a slope generated at the first cantilever actuator. The spectroscope includes the movable diffraction element.Type: GrantFiled: March 8, 2018Date of Patent: November 30, 2021Assignee: RICOH COMPANY, LTD.Inventors: Masayuki Fujishima, Hidetaka Noguchi, Hidenori Kato, Masashi Suematsu, Junichi Azumi, Shuichi Suzuki
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Patent number: 11060909Abstract: (Object) To enable to provide a small-scale and low-cost spectrometer (Means of Achieving the Object) A spectrometer includes: a light incidence unit configured to allow incidence of light from outside; a diffraction grating configured to disperse, according to wavelength, the light that is incident through the light incidence unit; and a reflection unit including a reflection surface for reflecting the light that has been dispersed according to wavelength by the diffraction grating. Tilt of the reflection surface is changeable.Type: GrantFiled: December 20, 2017Date of Patent: July 13, 2021Assignee: Ricoh Company, Ltd.Inventors: Hidetaka Noguchi, Junichi Azumi, Hidenori Kato, Masashi Suematsu, Masayuki Fujishima, Shuichi Suzuki
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Publication number: 20200088572Abstract: To enable to provide a small-scale and low-cost spectrometer (Means of Achieving the Object) A spectrometer includes: a light incidence unit configured to allow incidence of light from outside; a diffraction grating configured to disperse, according to wavelength, the light that is incident through the light incidence unit; and a reflection unit including a reflection surface for reflecting the light that has been dispersed according to wavelength by the diffraction grating. Tilt of the reflection surface is changeable.Type: ApplicationFiled: December 20, 2017Publication date: March 19, 2020Inventors: Hidetaka NOGUCHI, Junichi AZUMI, Hidenori KATO, Masashi SUEMATSU, Masayuki FUJISHIMA, Shuichi SUZUKI
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Patent number: 10544032Abstract: A MEMS device includes a plurality of ribbon elements, a securing portion, and a plurality of connecting portions. The securing portion supports the plurality of ribbon elements. The plurality of connecting portions are disposed on ends of each of the plurality of ribbon elements and connect each of the plurality of ribbon elements to the securing portion. An angle formed by a longitudinal extending line of each of the plurality of ribbon elements and each of the plurality of connecting portions is greater than 0° in a planar direction of each of the plurality of ribbon elements.Type: GrantFiled: January 25, 2018Date of Patent: January 28, 2020Assignee: Ricoh Company, Ltd.Inventors: Masayuki Fujishima, Hidetaka Noguchi, Hidenori Kato, Junichi Azumi, Masashi Suematsu, Shuichi Suzuki
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Patent number: 10444073Abstract: A frame, a spectroscope, a spectrometry unit, and an image forming apparatus. The frame has hollow structure and includes at least four apertures including a first aperture, a second aperture, a third aperture through which light enters the frame, and a fourth aperture, a concave diffraction grating disposed at a position of the first aperture, and a movable reflector disposed at a position of the second aperture to reflect light dispersed by the concave diffraction grating and change a reflection angle of the reflected light. Through the fourth aperture of the frame, the light reflected by the movable reflector exits the frame. The spectroscope includes the frame, and the frame further includes an optical entrance disposed at a position of the third aperture, and an optical exit disposed at a position of the fourth aperture.Type: GrantFiled: June 20, 2019Date of Patent: October 15, 2019Assignee: Ricoh Company, Ltd.Inventors: Hidetaka Noguchi, Junichi Azumi, Hidenori Kato, Masayuki Fujishima, Masashi Suematsu
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Patent number: 10247349Abstract: In a configuration of a method for preventing progression of corrosion in a steel pipe structure according to the present invention, two or more types of liquids 150 are injected, while being mixed, into a steel pipe that constitutes the steel pipe structure, from an opening at one of both ends of the steel pipe, and the inside of the steel pipe is filled with resin foam product (foam product 152) by foam expansion and hardening of the two or more types of liquids.Type: GrantFiled: July 11, 2016Date of Patent: April 2, 2019Assignee: Nitto Chemical Co., Ltd.Inventors: Kazuhiro Takaishi, Takehiro Miyazawa, Yoshio Tamura, Takuhiko Ohashi, Masashi Suematsu, Osamu Hatsumi, Tadashi Kimura, Makoto Ide, Isao Naganuma, Marco Volpato, Maurizio Corti, Tetsuya Matayoshi, Kouei Miyazato, Shinichi Suzuki, Nobuo Okamura, Kozo Hatsumi, Hiromi Hasegawa
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Patent number: 10119862Abstract: A spectrum measuring device including a ribbon element, a light detection element, and circuitry. The ribbon element includes a first light reflector including a plurality of first light reflection surfaces configured to be translated in an out-of-plane direction, and a second light reflector including a plurality of second light reflection surfaces that are fixed. The circuitry supplies a drive signal to the ribbon element in such a manner that a change of a displacement amount difference between the first light reflection surfaces and the second light reflection surfaces corresponds to a predetermined frequency; and acquires the light quantity data detected by the light detection element at a predetermined sampling frequency.Type: GrantFiled: February 27, 2018Date of Patent: November 6, 2018Assignee: Ricoh Company, Ltd.Inventors: Shuichi Suzuki, Hidetaka Noguchi, Masayuki Fujishima, Hidenori Kato, Junichi Azumi, Masashi Suematsu
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Publication number: 20180267293Abstract: A movable diffraction element and a spectroscope. The movable diffraction element includes a movable component having a comb-like shape, a supporting unit configured to support the movable component, a first cantilever actuator coupled to the supporting unit, a displacement determiner coupled to an edge of the first cantilever actuator, and a second cantilever actuator disposed parallel to the first cantilever actuator. In the movable diffraction element, a slope generated when the second cantilever actuator deforms is approximately equivalent to a slope generated at the first cantilever actuator. The spectroscope includes the movable diffraction element.Type: ApplicationFiled: March 8, 2018Publication date: September 20, 2018Inventors: Masayuki FUJISHIMA, Hidetaka Noguchi, Hidenori Kato, Masashi Suematsu, Junichi Azumi, Shuichi Suzuki
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Publication number: 20180252578Abstract: A spectrum measuring device including a ribbon element, a light detection element, and circuitry. The ribbon element includes a first light reflector including a plurality of first light reflection surfaces configured to be translated in an out-of-plane direction, and a second light reflector including a plurality of second light reflection surfaces that are fixed. The circuitry supplies a drive signal to the ribbon element in such a manner that a change of a displacement amount difference between the first light reflection surfaces and the second light reflection surfaces corresponds to a predetermined frequency; and acquires the light quantity data detected by the light detection element at a predetermined sampling frequency.Type: ApplicationFiled: February 27, 2018Publication date: September 6, 2018Inventors: Shuichi Suzuki, Hidetaka Noguchi, Masayuki Fujishima, Hidenori Kato, Junichi Azumi, Masashi Suematsu
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Publication number: 20180215608Abstract: A MEMS device includes a plurality of ribbon elements, a securing portion, and a plurality of connecting portions. The securing portion supports the plurality of ribbon elements. The plurality of connecting portions are disposed on ends of each of the plurality of ribbon elements and connect each of the plurality of ribbon elements to the securing portion. An angle formed by a longitudinal extending line of each of the plurality of ribbon elements and each of the plurality of connecting portions is greater than 0° in a planar direction of each of the plurality of ribbon elements.Type: ApplicationFiled: January 25, 2018Publication date: August 2, 2018Inventors: Masayuki FUJISHIMA, Hidetaka NOGUCHI, Hidenori KATO, Junichi AZUMI, Masashi SUEMATSU, Shuichi SUZUKI
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Patent number: 9903758Abstract: A spectral measurement device includes a light reflection grating having a plurality of movable gratings and a movable grating drive unit that displaces the movable gratings to alter a grating pattern of the light reflection grating, a light detecting element that detects light incident on the light reflection grating, a storage unit storing a relationship between a light quantity to be detected by the light detecting element and corresponding light intensities at differing wavelengths for different grating patterns, and a computation unit that calculates light intensities at the differing wavelengths of the light incident on the light reflection grating based on the light quantity of the incident light detected by the light detecting element for each of the different grating patterns by altering the grating pattern based on the relationship between the light quantity and the corresponding light intensities for the different grating patterns stored in the storage unit.Type: GrantFiled: May 26, 2017Date of Patent: February 27, 2018Assignee: Ricoh Company, Ltd.Inventors: Junichi Azumi, Hidetaka Noguchi, Hidenori Kato, Masashi Suematsu, Masayuki Fujishima
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Publication number: 20170350759Abstract: A spectral measurement device includes a light reflection grating having a plurality of movable gratings and a movable grating drive unit that displaces the movable gratings to alter a grating pattern of the light reflection grating, a light detecting element that detects light incident on the light reflection grating, a storage unit storing a relationship between a light quantity to be detected by the light detecting element and corresponding light intensities at differing wavelengths for different grating patterns, and a computation unit that calculates light intensities at the differing wavelengths of the light incident on the light reflection grating based on the light quantity of the incident light detected by the light detecting element for each of the different grating patterns by altering the grating pattern based on the relationship between the light quantity and the corresponding light intensities for the different grating patterns stored in the storage unit.Type: ApplicationFiled: May 26, 2017Publication date: December 7, 2017Applicant: Ricoh Company, Ltd.Inventors: Junichi AZUMI, Hidetaka NOGUCHI, Hidenori KATO, Masashi SUEMATSU, Masayuki FUJISHIMA
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Publication number: 20160319981Abstract: In a configuration of a method for preventing progression of corrosion in a steel pipe structure according to the present invention, two or more types of liquids 150 are injected, while being mixed, into a steel pipe that constitutes the steel pipe structure, from an opening at one of both ends of the steel pipe, and the inside of the steel pipe is filled with resin foam product (foam product 152) by foam expansion and hardening of the two or more types of liquids.Type: ApplicationFiled: July 11, 2016Publication date: November 3, 2016Inventors: Kazuhiro TAKAISHI, Takehiro MIYAZAWA, Yoshio TAMURA, Takuhiko OHASHI, Masashi SUEMATSU, Osamu HATSUMI, Tadashi KIMURA, Makoto IDE, Isao NAGANUMA, Marco VOLPATO, Maurizio CORTI, Tetsuya MATAYOSHI, Kouei MIYAZATO, Shinichi SUZUKI, Nobuo OKAMURA, Kozo HATSUMI, Hiromi HASEGAWA