Patents by Inventor Takashi Kurita
Takashi Kurita 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: 20240310259Abstract: A load sensor and load detector for detecting the weight of tiny substances such as viruses or bacteria and includes a resonance generator causing a vibrating unit to resonate, a load sensor, and a voltage detector that detects change in induced electromotive force in a pick-up. The load sensor includes the vibrating unit, pick-up, and a substance adsorbent. The vibrating unit includes a magnetostrictive element capable of resonating. The pick-up generates an induced current using inverse magnetostrictive effect of the magnetostrictive element resulting from the vibrating unit vibrations. The substance adsorbent is provided at the vibrating unit, is composed of an antibody to viruses or bacteria and at least partially covers the vibrating unit. The pick-up is composed of a coil with the vibrating unit arranged inside the coil. The vibrating unit is formed by bonding the magnetostrictive element and a soft magnetic body to each other.Type: ApplicationFiled: March 4, 2022Publication date: September 19, 2024Applicants: TOHOKU UNIVERSITY, TOHOKU STEEL CO., LTD.Inventors: Fumio NARITA, Kumi INOUE, Hiroki KURITA, Shion OSANA, Siti Masturah BINTI FAKHRUDDIN, Naoto MIYAMOTO, Masahito WATANABE, Daiki CHIBA, Ryuichi ONODERA, Tsuyoki TAYAMA, Takenobu SATO, Takashi EBATA
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Patent number: 12070936Abstract: An image recording apparatus includes a recording unit that records an image on a recording medium, a discharge unit configured to discharge the recording medium on which recording has been performed by the recording unit, a first conveying path for conveying the recording medium from the recording unit to the discharge unit, a heating unit configured to heat the recording medium on which recording has been performed by the recording unit and disposed on the first conveying path, and a second conveying path configured to branch off from the first conveying path at a branching portion between the heating unit and the discharge unit and configured to merge with the first conveying path between the recording unit and a stacking unit on the first conveying path.Type: GrantFiled: June 2, 2021Date of Patent: August 27, 2024Assignee: Canon Kabushiki KaishaInventors: Takashi Abe, Tetsuya Ishikawa, Tsuyoshi Saeki, Yoshiyuki Kurita, Yumi Mukoyama
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Publication number: 20240218140Abstract: Provided is a method of manufacturing a resin member. The method includes irradiating a surface of a member containing a resin and a plant powder dispersed in the resin with laser light to change the plant powder or both the resin and the plant powder into diamond-like carbon in a surface layer region including the surface of the member.Type: ApplicationFiled: December 27, 2023Publication date: July 4, 2024Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Atsushi NAKANISHI, Yuta KINE, Takeshi WATARI, Takashi KURITA, Hiroshi SATOZONO
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Publication number: 20240208822Abstract: A graphene manufacturing method includes a step of preparing a workpiece including a base material made of a resin material and a plant powder dispersed in the base material, a step of irradiating a surface of the workpiece with a terahertz wave and an evaluation laser beam and detecting the terahertz wave from the surface, a step of irradiating a processing region of the surface with a processing laser beam to form graphene in the processing region, a step of irradiating the processing region with the terahertz wave and the evaluation laser beam and detecting the terahertz wave from the processing region, and a step of evaluating quality of the graphene in the processing region based on an intensity difference between the terahertz wave detected in the step and the terahertz wave detected in the step.Type: ApplicationFiled: December 19, 2023Publication date: June 27, 2024Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Atsushi NAKANISHI, Yuta KINE, Takeshi WATARI, Takashi KURITA
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Publication number: 20240191759Abstract: A clutch device includes an inner ring, an outer ring and claw members to selectively lock the rings of the clutch device. A first ring among the inner and outer rings has a toothed surface that faces a second ring among the inner and outer rings. The toothed surface includes a plurality of teeth arranged in a circumferential direction to protrude toward the second ring. A given tooth includes a first surface and a second surface that extend substantially radially, and a third surface that extends between the first surface and the second surface. The tooth has a first height at a first end of the third surface adjacent to the first surface and a second height at a second end of the third surface adjacent to the second surface, in which the first height is greater than the second height.Type: ApplicationFiled: November 30, 2023Publication date: June 13, 2024Inventors: Osamu KATAYAMA, Takashi KURITA
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Publication number: 20240175471Abstract: A clutch device includes an inner ring; an outer ring; a ratchet engagement mechanism; and a switching mechanism. When an engaging member is provided on an inner peripheral portion of the outer ring, a cam member includes a cam inner ring portion provided to rotate together with the inner ring, a cam outer ring portion disposed outside the cam inner ring portion, and a plurality of rolling elements disposed between the cam inner ring portion and the cam outer ring portion. When the engaging member is provided on an outer peripheral portion of the inner ring, the cam member includes a cam outer ring portion provided to rotate together with the outer ring, a cam inner ring portion disposed inside the cam outer ring portion, and a plurality of rolling elements disposed between the cam inner ring portion and the cam outer ring portion.Type: ApplicationFiled: October 31, 2023Publication date: May 30, 2024Applicant: NSK-Warner K.K.Inventors: Osamu KATAYAMA, Takashi KURITA, Shiori KOKUBO, Noboru YAOTANI
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Patent number: 11942751Abstract: Disclosed is a laser device including: a laser light source configured to emit laser light; a phase control unit configured to receive the laser light emitted from the laser light source, to control a spatial phase of a portion of the laser light, to emit the portion of the light as control light, and to emit another portion of the laser light as non-control light; a first optical system configured to irradiate an object with the control light emitted from the phase control unit; a detector configured to detect the non-control light emitted from the phase control unit; a second optical system configured to cause the non-control light emitted from the phase control unit to converge toward a detection surface of the detector.Type: GrantFiled: September 29, 2021Date of Patent: March 26, 2024Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Takashi Kurita, Ryo Yoshimura, Ryo Makino, Yuu Takiguchi
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Publication number: 20240082959Abstract: A laser processing apparatus includes a support unit that supports a wafer including a plurality of functional elements disposed adjacent to each other via a street, an irradiation unit that irradiates the street with laser light, and a control unit that controls the irradiation unit based on information about the streets so that a first region and a second region of the street are simultaneously irradiated with the laser light, and a power of the laser light for removing a surface layer of the street in the first region is higher than a power for removing the surface layer of the street in the first region. The information about the street includes information that a processing threshold value indicating a difficulty of laser processing in the first region is lower than a processing threshold value in the second region.Type: ApplicationFiled: December 20, 2021Publication date: March 14, 2024Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yo SUGIMOTO, Takeshi SAKAMOTO, Takafumi OGIWARA, Naoki UCHIYAMA, Takashi KURITA, Ryo YOSHIMURA
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Publication number: 20240051067Abstract: A laser processing method includes: a first step of preparing a wafer including a plurality of functional elements disposed to be adjacent to each other via a street; and a second step of, after the first step, irradiating the street with laser light based on information regarding the street such that a surface layer of the street is removed in a first region of the street and the surface layer remains in a second region of the street. The information regarding the street includes information indicating that, when a modified region is formed in the wafer along a line passing through the street, a fracture extending from the modified region does not reach the street along the line in the first region, and reaches the street along the line in the second region.Type: ApplicationFiled: December 20, 2021Publication date: February 15, 2024Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yo SUGIMOTO, Takeshi SAKAMOTO, Takafumi OGIWARA, Naoki UCHIYAMA, Takashi KURITA, Ryo YOSHIMURA
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Publication number: 20240033859Abstract: A laser processing method includes a first step of preparing a wafer including a plurality of functional elements disposed to be adjacent to each other via a street, a second step of, after the first step, forming a modified region in the wafer along a line passing through the street, and a third step of, after the second step, irradiating the street with laser light such that a surface layer of the street is removed, and a fracture extending from the modified region reaches a bottom surface of a recess formed by removing the surface layer, along the line.Type: ApplicationFiled: December 20, 2021Publication date: February 1, 2024Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yo SUGIMOTO, Takeshi SAKAMOTO, Takafumi OGIWARA, Naoki UCHIYAMA, Takashi KURITA, Ryo YOSHIMURA
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Publication number: 20240030672Abstract: Disclosed is a laser device including: a laser light source configured to emit laser light; a phase control unit configured to receive the laser light emitted from the laser light source, to control a spatial phase of a portion of the laser light, to emit the portion of the light as control light, and to emit another portion of the laser light as non-control light; a first optical system configured to irradiate an object with the control light emitted from the phase control unit; a detector configured to detect the non-control light emitted from the phase control unit; a second optical system configured to cause the non-control light emitted from the phase control unit to converge toward a detection surface of the detector.Type: ApplicationFiled: September 29, 2021Publication date: January 25, 2024Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takashi KURITA, Ryo YOSHIMURA, Ryo MAKINO, Yuu TAKIGUCHI
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Publication number: 20230330774Abstract: Disclosed is a laser processing method for imparting compressive residual stress to an object along an objective area on a surface of the object by irradiating the objective area with laser light. The laser processing method includes: a first step of expanding an area irradiated with the laser light toward a first side in the objective area; and a second step of expanding the area irradiated with the laser light toward a second side different from the first side in the objective area.Type: ApplicationFiled: July 5, 2021Publication date: October 19, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yuki KABEYA, Takashi KURITA, Ryo YOSHIMURA, Takeshi WATARI
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Publication number: 20230330779Abstract: Disclosed is a laser processing method for imparting compressive residual stress to an object along an objective area on a surface of the object by irradiating the objective area with laser light. The laser processing method includes a processing step of scanning the objective area with an irradiation spot of the laser light while increasing a moving average in intensity of the laser light per unit area.Type: ApplicationFiled: July 5, 2021Publication date: October 19, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yuki KABEYA, Takashi KURITA, Ryo YOSHIMURA, Takeshi WATARI
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Publication number: 20230226639Abstract: A processed product manufacturing method includes preparing a workpiece containing metal and forming a plurality of first regions and a second region along a surface of the workpiece by the irradiation of a laser beam. The first regions are applied with a tensile residual stress. In the second region applied with a compressive residual stress, a plurality of irradiation points separated from each other in the surface of the workpiece are irradiated with the laser beam. The first regions are formed to be separated from each other and each of the first regions is surrounded by the second region when viewed from a direction orthogonal to the surface.Type: ApplicationFiled: June 4, 2021Publication date: July 20, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takashi KURITA, Takeshi WATARI, Yuki KABEYA, Ryo YOSHIMURA
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Publication number: 20230185238Abstract: A laser processing apparatus includes a spatial light modulator for inputting laser light output from a laser light source and outputting laser light after phase modulation by a hologram, and a control unit for presenting, on the spatial light modulator, the hologram for focusing the laser light after the phase modulation output from the spatial light modulator on a plurality of irradiation points in a processing object by a focusing optical system. The control unit sets at least one of a shape and a size of a processing region defined by the irradiation points in a first plane intersecting an optical axis of the laser light and a processing region defined by the irradiation points in a second plane intersecting the optical axis and separated from the first plane in a direction of the optical axis to be different from each other.Type: ApplicationFiled: February 17, 2021Publication date: June 15, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takashi KURITA, Yuu TAKIGUCHI
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Publication number: 20230143460Abstract: A laser processing apparatus includes a spatial light modulator for inputting laser light output from a laser light source and outputting laser light after phase modulation by a hologram, and a control unit for presenting, on the spatial light modulator, the hologram for focusing the laser light after the phase modulation output from the spatial light modulator on a plurality of irradiation points in a processing object by a focusing optical system. The control unit controls light intensities of at least two irradiation points included in the plurality of irradiation points independently of each other.Type: ApplicationFiled: February 17, 2021Publication date: May 11, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takashi KURITA, Yuu TAKIGUCHI
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Publication number: 20230120938Abstract: A vehicle mounting structure for an electric unit 1 includes a side member 10, a suspension member 5 including a high rigidity portion 5a and a low rigidity portion 5b in a vehicle front-rear direction, and an electric unit 1 in which an inverter 2 and a motor 3 are integrated. The side member 10 includes a curved portion 10c having an upwardly convex curved shape. The curved portion 10c is disposed at a position overlapping with the inverter 2 in the vehicle front-rear direction. The electric unit 1 is fixed to the low rigidity portion 5b.Type: ApplicationFiled: March 4, 2020Publication date: April 20, 2023Applicant: NISSAN MOTOR CO., LTD.Inventors: Daisuke ASAKURA, Takashi KURITA
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Publication number: 20230075209Abstract: A laser processing apparatus includes a semiconductor laser element, a waveform output unit for outputting input waveform data, a driver circuit for supplying a drive current having a time waveform according to the input waveform data to the semiconductor laser element, and a processing optical system for irradiating a processing object with laser light. The semiconductor laser element outputs the laser light in which two or more light pulse groups each including one or a plurality of light pulses are provided with a time interval therebetween. Time waveforms of at least two light pulse are different from each other. The time waveform includes at least one of a time waveform of each of the one or plurality of light pulses, a time width of each of the one or plurality of light pulses, and a time interval of the plurality of light pulses.Type: ApplicationFiled: February 10, 2021Publication date: March 9, 2023Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Takashi KURITA, Kazuki KAWAI
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Publication number: 20230049067Abstract: A hybrid system for a vehicle includes a drive unit provided with a motor for driving wheels and a power generation unit provided with an engine and a generator driven by the engine. The power generation unit is provided so as to be adjacent to the drive unit in a separated state. One of the drive unit and the power generation unit is mounted on a vehicle body via a first mount member at a lower portion of the one unit. The other one of the drive unit and the power generation unit is mounted on the vehicle body via a second mount member at an upper portion of the other one unit.Type: ApplicationFiled: February 4, 2020Publication date: February 16, 2023Applicant: NISSAN MOTOR CO., LTD.Inventors: Takashi KURITA, Daisuke ASAKURA, Ryo WATANABE
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Patent number: 11504803Abstract: A laser processing apparatus includes a light source which outputs a laser light, and a waveform control unit which controls a pulse waveform of the laser light irradiating the workpiece, in which the pulse waveform of the laser light controlled by the waveform control unit includes a main pulse and a foot pulse temporally preceding the main pulse, and a peak intensity of the foot pulse is smaller than a peak intensity of the main pulse, and a peak position of the main pulse is positioned in a retention time period of plasma generated due to an incidence of the foot pulse on the workpiece.Type: GrantFiled: January 24, 2019Date of Patent: November 22, 2022Assignee: HAMAMATSU PHOTONICS K.KInventors: Yoshio Mizuta, Takashi Kurita, Takeshi Watari, Yuki Kabeya, Norio Kurita, Toshiyuki Kawashima