Patents by Inventor Fumio Nagai

Fumio Nagai 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: 20240192786
    Abstract: A keyboard assembly includes a keyboard body and a drive mechanism. The keyboard body includes a frame assembly and keys. The keys are arranged in a plurality of rows in parallel, each row of keys include a plurality of keys, and the keys are located in key slots on the keyboard body. The frame assembly includes a first frame and a crossbar, and the drive mechanism drives the first frame to move in an arrangement direction of the plurality of rows of keys. One crossbar is correspondingly disposed for each row of keys, the crossbar moves, along with movement of the first frame, in an arrangement direction of each row of keys, and the keys move, along with movement of the crossbar, in a direction toward the key slots or in a direction of exposing the key slots.
    Type: Application
    Filed: February 21, 2024
    Publication date: June 13, 2024
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Fumio Tamura, Yake Zou, Kenji Nagai, Song Wang, Hui Lin, Lingfeng Zeng, Shaoyong Yang
  • Publication number: 20230184676
    Abstract: The present invention relates to providing a detection device that uses surface plasmon resonance to detect the presence or the amount of a substance to be detected, in which a detection unit can accurately detect scattered light without detecting stray light, and can accurately determine an irradiation angle of excitation light. This detection method uses the detection device that uses surface plasmon resonance to detect the presence or the amount of a substance to be detected. A detection range control unit controls a detection range of a detection unit so that a detection range utilized when the detection unit detects scattered light emitted from a metallic film and from a region on the metallic film differs from a detection range utilized when the detection unit detects fluorescence emitted from a fluorescent substance labeling the substance to be detected which has been captured by a capturing body.
    Type: Application
    Filed: May 1, 2020
    Publication date: June 15, 2023
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventor: Fumio NAGAI
  • Publication number: 20230152234
    Abstract: The present invention relates to providing a detection device that has high robustness against a temperature change and a temporal change and that is capable of detecting a substance to be detected with high accuracy. The detection device of the present invention is a detection device that detects presence or an amount of a substance to be detected using an enhanced electric field based on surface plasmon resonance, the detection device having a light projecting unit for irradiating a metal film of a detection chip held by a chip holder with excitation light via a prism. The light projecting unit includes: a light source; a diaphragm for regulating an amount of light from the light source; and a conjugate optical system that optically conjugates an opening portion of the diaphragm and a region of the metal film irradiated with the excitation light.
    Type: Application
    Filed: February 16, 2021
    Publication date: May 18, 2023
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventor: Fumio NAGAI
  • Patent number: 11169089
    Abstract: A measurement chip including a prism, a metal film, and a capturing body is prepared. In a state in which a specimen is present on the metal film, scattered light obtained when first light which passes through the metal film and the specimen is scattered in the specimen when the first light is applied to the metal film from a prism side at a first incident angle smaller than a critical angle is detected. In a state in which a substance to be measured is captured by the capturing body and the specimen is not present on the metal film, a signal indicating an amount of the substance to be measured generated in the measurement chip when second light is applied to the metal film at a second incident angle not smaller than the critical angle from the prism side is detected. On the basis of a hematocrit value of the specimen determined from a light amount of the scattered light, a measurement value indicating the amount of the substance to be measured determined from the signal is corrected.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: November 9, 2021
    Assignee: KONICA MINOLTA, INC.
    Inventors: Tetsuya Noda, Fumio Nagai, Youichi Aoki, Makiko Otani
  • Publication number: 20210285874
    Abstract: A measurement chip including a prism, a metal film, and a capturing body is prepared. In a state in which a specimen is present on the metal film, scattered light obtained when first light which passes through the metal film and the specimen is scattered in the specimen when the first light is applied to the metal film from a prism side at a first incident angle smaller than a critical angle is detected. In a state in which a substance to be measured is captured by the capturing body and the specimen is not present on the metal film, a signal indicating an amount of the substance to be measured generated in the measurement chip when second light is applied to the metal film at a second incident angle not smaller than the critical angle from the prism side is detected. On the basis of a hematocrit value of the specimen determined from a light amount of the scattered light, a measurement value indicating the amount of the substance to be measured determined from the signal is corrected.
    Type: Application
    Filed: September 6, 2017
    Publication date: September 16, 2021
    Inventors: Tetsuya NODA, Fumio NAGAI, Youichi AOKI, Makiko OTANI
  • Patent number: 11047798
    Abstract: A specimen containing a substance to be measured is introduced into a flow path of a measurement chip including a flow path which is a cavity for accommodating liquid and a reflecting unit which specularly reflects light which passes through the flow path so as to pass through the flow path again and a measurement value indicating an amount of the substance to be measured in the specimen is acquired. Then, second light acquired when first light including light of a wavelength absorbed by a red blood cell passes through the specimen in the flow path, is reflected by the reflecting unit, and passes through the specimen in the flow path again is detected in a state in which the specimen is present in the flow path. Next, a hematocrit value of the specimen is determined on the basis of a detection result of the second light. Next, a measurement value is corrected on the basis of the hematocrit value.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: June 29, 2021
    Assignee: KONICA MINOLTA, INC.
    Inventors: Fumio Nagai, Tetsuya Noda, Hideyuki Fujii
  • Patent number: 10809198
    Abstract: A light irradiation angle is set with respect to a first surface so as to detect only either first reflected light or second reflected light. Then, light is emitted from a light irradiation part at the set irradiation angle while a detection chip is kept in motion, either the first reflected light or the second reflected light is detected by a reflected light detection part, and positional information of the detection chip is acquired on the basis of the result of the detection of the first or second reflected light. The detection chip is moved, on the basis of the acquired positional information, to a detection position where detection of a substance to be detected is performed. While the detection chip is kept at the detection position, detection of the substance to be detected is performed through detection of sample light.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: October 20, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Fumio Nagai, Tetsuya Noda, Kenichi Kubo
  • Publication number: 20200182784
    Abstract: A specimen containing a substance to be measured is introduced into a flow path of a measurement chip including a flow path which is a cavity for accommodating liquid and a reflecting unit which specularly reflects light which passes through the flow path so as to pass through the flow path again and a measurement value indicating an amount of the substance to be measured in the specimen is acquired. Then, second light acquired when first light including light of a wavelength absorbed by a red blood cell passes through the specimen in the flow path, is reflected by the reflecting unit, and passes through the specimen in the flow path again is detected in a state in which the specimen is present in the flow path. Next, a hematocrit value of the specimen is determined on the basis of a detection result of the second light. Next, a measurement value is corrected on the basis of the hematocrit value.
    Type: Application
    Filed: August 1, 2017
    Publication date: June 11, 2020
    Inventors: Fumio NAGAI, Tefsuya NODA, Hideyuki FUJll
  • Patent number: 10648914
    Abstract: An optical sample detection system includes: a sensor chip including a dielectric member, a metal film adjacent to an upper surface of the dielectric member, a reaction layer adjacent to an upper surface of the metal film, and a lid member disposed on an upper surface of the reaction layer; a chip holding unit for holding the sensor chip; and a light projecting unit that irradiates the metal film with excitation light through the dielectric member. A sample is detected by irradiating the metal film with excitation light through the dielectric member. The lid member is wider than the dielectric member in an optical path cross section of the excitation light.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: May 12, 2020
    Assignee: Konica Minolta, Inc.
    Inventors: Fumio Nagai, Tetsuya Noda
  • Patent number: 10495575
    Abstract: The present invention pertains to a surface plasmon enhanced fluorescence analysis device and a surface plasmon enhanced fluorescence measurement method which use GC-SPFS and make it possible to detect a substance to be detected with high sensitivity. This surface plasmon enhanced fluorescence measurement device has: a light source for irradiating the diffraction grating of a chip with excited light; a polarizer for removing linearly polarized light from fluorescent light emitted from a fluorescent substance on the diffraction grating; and a photodetector for detecting the linearly polarized light removed by the polarizer.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: December 3, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Yukito Nakamura, Takatoshi Kaya, Kosuke Nagae, Akitoshi Nozaki, Fumio Nagai, Ryouta Ishikawa, Akiyuki Namatame
  • Publication number: 20190285545
    Abstract: A light irradiation angle is set with respect to a first surface so as to detect only either first reflected light or second reflected light. Then, light is emitted from a light irradiation part at the set irradiation angle while a detection chip is kept in motion, either the first reflected light or the second reflected light is detected by a reflected light detection part, and positional information of the detection chip is acquired on the basis of the result of the detection of the first or second reflected light. The detection chip is moved, on the basis of the acquired positional information, to a detection position where detection of a substance to be detected is performed. While the detection chip is kept at the detection position, detection of the substance to be detected is performed through detection of sample light.
    Type: Application
    Filed: July 11, 2017
    Publication date: September 19, 2019
    Inventors: Fumio NAGAI, Tetsuya NODA, Kenichi KUBO
  • Publication number: 20190187125
    Abstract: A specimen containing blood is divided into a first specimen and a second specimen. The blood in the second specimen is hemolyzed. The first specimen containing a substance to be measured is introduced into an accommodating unit and a measurement value indicating an amount of the substance to be measured in the first specimen in a state in which the blood is not hemolyzed is acquired. In a state in which the second specimen in a state in which the blood is hemolyzed is present in the accommodating unit of a measurement chip, second light acquired when first light including light of a wavelength absorbed by a red blood cell passes through the second specimen in the accommodating unit is detected. On the basis of a detection result of the second light, a hematocrit value of the specimen is determined. The measurement value is corrected on the basis of the hematocrit value.
    Type: Application
    Filed: August 9, 2017
    Publication date: June 20, 2019
    Inventors: Makiko OTANI, Tetsuya NODA, Fumio NAGAI
  • Patent number: 10267735
    Abstract: This detection device has a holder, light irradiation unit, angle adjustment unit, light receiving sensor, light receiving optical system, optical filter, and a control unit. The light receiving optical system guides light from a detection chip to the light receiving sensor. The optical filter is disposed in the light receiving optical system, blocks a part of plasmon scattered light, and passes, out of the light emitted from the detection chip, a part of the plasmon scattered light, and fluorescence emitted from a fluorescent material. The light receiving sensor detects the fluorescent light, and the part of the plasmon scattered light, which have been emitted from the detection chip and passed the optical filter. On the basis of the detection results of the plasmon scattered light, the control unit controls the angle adjustment unit, and adjusts the incident angle of the excitation light to a predetermined incident angle.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: April 23, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Tetsuya Noda, Fumio Nagai, Nobuhiro Yamauchi, Yuichi Kyogoku
  • Publication number: 20180321152
    Abstract: An optical sample detection system includes: a sensor chip including a dielectric member, a metal film adjacent to an upper surface of the dielectric member, a reaction layer adjacent to an upper surface of the metal film, and a lid member disposed on an upper surface of the reaction layer; a chip holding unit for holding the sensor chip; and a light projecting unit that irradiates the metal film with excitation light through the dielectric member. A sample is detected by irradiating the metal film with excitation light through the dielectric member. The lid member is wider than the dielectric member in an optical path cross section of the excitation light.
    Type: Application
    Filed: October 25, 2016
    Publication date: November 8, 2018
    Inventors: Fumio NAGAI, Tetsuya NODA
  • Publication number: 20180080873
    Abstract: This detection device has a holder, light irradiation unit, angle adjustment unit, light receiving sensor, light receiving optical system, optical filter, and a control unit. The light receiving optical system guides light from a detection chip to the light receiving sensor. The optical filter is disposed in the light receiving optical system, blocks a part of plasmon scattered light, and passes, out of the light emitted from the detection chip, a part of the plasmon scattered light, and fluorescence emitted from a fluorescent material. The light receiving sensor detects the fluorescent light, and the part of the plasmon scattered light, which have been emitted from the detection chip and passed the optical filter. On the basis of the detection results of the plasmon scattered light, the control unit controls the angle adjustment unit, and adjusts the incident angle of the excitation light to a predetermined incident angle.
    Type: Application
    Filed: March 8, 2016
    Publication date: March 22, 2018
    Inventors: Tetsuya NODA, Fumio NAGAI, Nobuhiro YAMAUCHI, Yuichi KYOGOKU
  • Publication number: 20170030833
    Abstract: The present invention pertains to a surface plasmon enhanced fluorescence analysis device and a surface plasmon enhanced fluorescence measurement method which use GC-SPFS and make it possible to detect a substance to be detected with high sensitivity. This surface plasmon enhanced fluorescence measurement device has: a light source for irradiating the diffraction grating of a chip with excited light; a polarizer for removing linearly polarized light from fluorescent light emitted from a fluorescent substance on the diffraction grating; and a photodetector for detecting the linearly polarized light removed by the polarizer.
    Type: Application
    Filed: April 8, 2014
    Publication date: February 2, 2017
    Inventors: Yukito NAKAMURA, Takatoshi KAYA, Kosuke NAGAE, Akitoshi NOZAKI, Fumio NAGAI, Ryouta ISHIKAWA, Akiyuki NAMATAME
  • Publication number: 20150260917
    Abstract: An optical fiber coupling member and a manufacturing method thereof are provided for reducing a decrease in the coupling efficiency upon coupling of a multi-core fiber with a fiber bundle. A coupling member includes one end in contact with a first optical waveguide that includes a bundle of single cores each covered with a cladding, another end in contact with a second optical waveguide that includes a plurality of cores each covered with a cladding, and a predetermined medium that fills between the one end and the other end. The optical fiber coupling member changes the mode field diameter of each of light rays incident from each optical path of the first optical waveguide. The optical fiber coupling member changes the intervals of the light rays, the mode field diameter of which has been changed, and guides the light rays to the cores of the second optical waveguide.
    Type: Application
    Filed: August 28, 2013
    Publication date: September 17, 2015
    Inventors: Toshiyuki Imai, Fumio Nagai
  • Patent number: 8830483
    Abstract: An optical tomographic image forming method including: splitting low coherence light emitted from a light source is split into a measuring light and a reference light; forming an optical tomographic image of a measured object by detecting an interference light that is obtained by superposing reflected light, reflected from the measured object when the measuring light is irradiated onto the measured object via a condenser lens, and reflected light, reflected from a reference mirror, which is positioned a predetermined length of optical path away from the splitting position, when the reference light is irradiated onto the reference mirror, wherein the method further includes: inputting a refractive index of the measured object; correcting the tomographic image in accordance with the inputted refractive index of the measured object; and outputting the corrected tomographic image.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: September 9, 2014
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Fumio Nagai, Soh Ohzawa
  • Patent number: 8660389
    Abstract: Provided are an optical connector and an optical tomographic imaging apparatus, by which no noise occurs and a high quality image without a distortion can be obtained. In the optical connector, optical fibers are inserted into a lumen of a tube from opposite ends thereof; one of the optical fibers is fixed to the tube and the other optical fiber is held so as to be rotatable relative to the tube; an end of one of the optical fibers is separated from an end of the other optical fiber to form a gap therebetween in the lumen; a connecting section which connects the exterior space of the tube and the gap is formed; and a liquid or fluid made of a material which can transmit light is held in the exterior space, the gap, and the connecting section. Consequently, a significant pressure variation in matching liquid does not occur if the distance between the facing optical fibers changes.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: February 25, 2014
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Junichi Jono, Katsumi Fujiwara, Fumio Nagai
  • Publication number: 20130070255
    Abstract: A prism is attached to a refractive index dispersion lens by inclining the incident plane of the prism by a prescribed angle with respect to the end face of the refractive index dispersion lens and filling adhesive therebetween. In this way, the amount of light reflected from the bottom plane of the prism decreases in accordance with the angle of inclination of the incident plane, and the interference signal formed by the reflected light from the bottom plane of the prism, and the reflected light of a reference beam therefore weakens and the image signal decreases. Consequently, distinguishing between the image signal and the image signals produced by reflected light from the measurement subject is facilitated.
    Type: Application
    Filed: November 9, 2010
    Publication date: March 21, 2013
    Inventor: Fumio Nagai