Patents by Inventor Akira Terashima
Akira Terashima 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: 11953555Abstract: An abnormality diagnosis device includes: a data acquirer to acquire a current waveform and a driving frequency of an electric motor; a storage which stores a combination of a current value of the current waveform and the driving frequency at an identical time by the data acquirer; a data determiner to determine whether or not a current value of the current waveform and the driving frequency as a diagnosis target at an identical time by the data acquisition match the combination stored in the storage; an analyzer to perform frequency analysis for the current waveform determined to be matched by the data determiner, to extract sideband waves, and calculate a spectrum intensity of the sideband waves; and an abnormality diagnosis processor to make a diagnosis that abnormality has occurred, when the spectrum intensity of the sideband waves is equal to or greater than a threshold.Type: GrantFiled: October 24, 2017Date of Patent: April 9, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Makoto Kanemaru, Takuya Ohkubo, Sota Sano, Akira Satake, Satoru Terashima
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Patent number: 7418173Abstract: A waveguide type optical control element which has an optical waveguide made of an insulating material having an electro-optic effect or a thermo-optic effect, and a control electrode provided in contact with or proximity to the optical waveguide; the optical waveguide having a propagation loss which is 1 dB/cm or less at wavelengths of from 1.3 ?m to 1.6 ?m. The control electrode is constituted of a conductive oxide film having a carrier electron concentration of 5.5×1020/cm3 or less and a resistivity of 9.5×10?4 ?cm or less, and the conductive oxide film has a coefficient of extinction of light waves, of 0.240 or less at a wavelength of 1.55 ?m.Type: GrantFiled: June 29, 2005Date of Patent: August 26, 2008Assignee: Sumitomo Metal Mining Co., Ltd.Inventors: Yoshiyuki Abe, Hiroshi Mori, Akira Terashima
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Publication number: 20080069490Abstract: A waveguide type optical control element which has an optical waveguide made of an insulating material having an electro-optic effect or a thermo-optic effect, and a control electrode provided in contact with or proximity to the optical waveguide; the optical waveguide having a propagation loss which is 1 dB/cm or less at wavelengths of from 1.3 ?m to 1.6 ?m. The control electrode is constituted of a conductive oxide film having a carrier electron concentration of 5.5×1020/cm3 or less and a resistivity of 9.5×10?4 ?cm or less, and the conductive oxide film has a coefficient of extinction of light waves, of 0.240 or less at a wavelength of 1.55 ?m.Type: ApplicationFiled: June 29, 2005Publication date: March 20, 2008Inventors: Yoshiyuki Abe, Hiroshi Mori, Akira Terashima
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Patent number: 6504154Abstract: A non-destructive sugar content measuring apparatus having a plurality of trays on which vegetables and fruits are to be placed, a transport device for successively delivering the trays at appropriate intervals, and first, second and third measuring sections provided in the course of a transport path and at which laser beams having wavelengths &lgr;1, &lgr;2 and &lgr;3 are respectively made incident on each vegetable or fruit and the amount of light of each laser beam emergent from the vegetable or fruit is measured with a detector provided at each measuring section and the absorbance of each laser beam is determined from the amount of incident light made incident on the vegetable or fruit and the amount of detected light which has been measured with the detector, to measure the sugar content of the vegetables and fruits on the basis of each absorbance.Type: GrantFiled: February 16, 2001Date of Patent: January 7, 2003Assignee: Sumitomo Metal Mining Co., Ltd.Inventors: Junji Iida, Akira Terashima, Kazuo Maeda, Shintaro Ishikawa, Shinji Yamauchi
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Patent number: 6408665Abstract: The present invention provides a finish hot rolling method for structural steels capable of realizing enhanced dimensional accuracy and a uniform microstructure, using a 2-stand 3-roll finishing mill, wherein an area reduction rate of the final finishing pass is 10 to 20% and the value of an area reduction rate of the final finishing pass divided by the corresponding area reduction rate of the pass preceding the final finishing pass is 0.7 to 1.3.Type: GrantFiled: January 8, 2001Date of Patent: June 25, 2002Assignee: Nippon Steel CorporationInventors: Junji Nishino, Koichi Hasegawa, Akira Terashima
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Publication number: 20010045517Abstract: A non-destructive sugar content measuring apparatus comprising a plurality of trays on which vegetables and fruits are to be placed, a transport means for successively delivering the trays at appropriate intervals, and first, second and third measuring sections provided in the course of a transport path and at which laser beams having wavelengths &lgr;1, &lgr;2 and &lgr;3 are respectively made incident on each vegetable or fruit and the amount of light of each laser beam emergent from the vegetable or fruit is measured with a detector provided at each measuring section and the absorbance of each laser beam is determined from the amount of incident light made incident on the vegetable or fruit and the amount of detected light which has been measured with the detector, to measure the sugar content of the vegetables and fruits on the basis of each absorbance.Type: ApplicationFiled: February 16, 2001Publication date: November 29, 2001Applicant: Sumitomo Metal Mining Co., LTd.Inventors: Junji Iida, Akira Terashima, Kazuo Maeda, Shintaro Ishikawa, Shinji Yamauchi
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Patent number: 6094265Abstract: In a calibrator used for a non-destructive transmission optical measuring apparatus for quantitatively determining a specific component contained in a measuring object by making light incident on the measuring object at its light-incident area, detecting the light having entered, and having been transmitted through, the interior of the measuring object, at its light-emergent area set at a position different from the light-incident area, and measuring absorption of the light to quantitatively determine the specific component contained in the measuring object, the calibrator comprises a closed body having a light inlet and a light outlet, the interior of which is provided with a substrate having light absorption characteristics identical or similar to those of the specific component, and in which a light path length from the light inlet to the light outlet is so set as to be equal or substantially equal to an effective light path length of the light transmitted through the interior of the measuring object.Type: GrantFiled: May 14, 1999Date of Patent: July 25, 2000Assignee: Sumitomo Metal Mining Co., Ltd.Inventors: Shintaro Ishikawa, Junji Iida, Akira Terashima
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Patent number: 5844678Abstract: A non-destructive taste characteristics measuring apparatus comprising trays and a measuring section provided in the course of a transport path and at which light is made incident on a vegetable or fruit to measure its taste characteristics, wherein the trays are each provided with at least two tray-side light passages one opening ends of which are so made as to come in contact with the vegetable or fruit and the other ends of which stand open outward at the bottom of the tray, and the measuring section has at least two measurement-side light passages one opening ends of which are positionally adjustable to the opening ends of the tray-side light passages at its part facing the bottom of said tray, and is provided with i) a means for making light incident on the vegetable or fruit through one of the measurement-side light passages and one of the tray-side light passages and ii) a detector which the light emergent from the vegetable or fruit enters through the other tray-side light passage and the other measurType: GrantFiled: October 1, 1997Date of Patent: December 1, 1998Assignee: Sumitomo Metal Mining Co. Ltd.Inventors: Masahiro Ito, Junji Iida, Akira Terashima, Kazuo Maeda, Shuji Suzuki, Takeo Ide
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Patent number: 5726750Abstract: A non-destructive taste characteristics measuring apparatus comprising trays and a measuring section provided in the course of a transport path and at which light is made incident on a vegetable or fruit to measure its taste characteristics, wherein the trays are each provided with at least two tray-side light passages one opening ends of which are so made as to come in contact with the vegetable or fruit and the other ends of which stand open outward at the bottom of the tray, and the measuring section has at least two measurement-side light passages one opening ends of which are positionally adjustable to the opening ends of the tray-side light passages at its part facing the bottom of said tray, and is provided with i) a means for making light incident on the vegetable or fruit through one of the measurement-side light passages and one of the tray-side light passages and ii) a detector which the light emergent from the vegetable or fruit enters through the other tray-side light passage and the other measurType: GrantFiled: June 25, 1996Date of Patent: March 10, 1998Assignee: Sumitomo Metal Mining Co., Ltd.Inventors: Masahiro Ito, Junji Iida, Akira Terashima, Kazuo Maeda, Shuji Suzuki, Takeo Ide, Toshiki Kishimoto
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Patent number: 5708271Abstract: A non-destructive sugar content measuring apparatus for determining the sugar content of a vegetable or fruit by measuring absorption of light in sugar when near infrared light is made incident on the vegetable or fruit; comprising at least one light source that emits light rays having three kinds of wavelengths within a wavelength range of from 860 nm to 960 nm, and a detector that detects the absorption of light.Type: GrantFiled: December 22, 1995Date of Patent: January 13, 1998Assignee: Sumitomo Metal Mining Co., Ltd.Inventors: Masahiro Ito, Junji Iida, Akira Terashima, Toshiki Kishimoto
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Patent number: 5070537Abstract: The invention relates to a system for detecting any defective point on a power transmission line by making use of highly-accurate time signal transmitted from a satellite and by utilizing a digital data processing system.Type: GrantFiled: November 24, 1989Date of Patent: December 3, 1991Assignees: Tohoku Electric Power Co., Inc., Kyokuto Boeki Kaisha, Ltd.Inventors: Sakari Ohira, Masatoshi Yamaki, Akira Terashima, Masaaki Ozawa
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Patent number: 5046801Abstract: An optical waveguide produced from a lithium niobate single crystal substrate diffused thereon titanium is claimed, wherein, as the substrate is used a single crystal of lithium niobate having an optical absorbance coefficient of 0.03 cm.sup.-1 or less for a light 420 nm in wavelength. The optical waveguide according to the present invention shows improved resistance against optical damage as compared with prior art waveguides, and is therefore suitable for devices subjected to incidence beam of higher intensity.Type: GrantFiled: September 24, 1990Date of Patent: September 10, 1991Assignee: Sumitomo Metal Mining Company LimitedInventors: Akira Terashima, Takumi Fujiwara, Hiroshi Mork, Takeshi Yokoyama
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Patent number: 4750003Abstract: A magnetic display unit in which a magnetic panel encloses a colored liquid in which magnetic particles are dispersed. A recording head moves over the panel and has a plurality of electromagnets arranged with at least three electromagnets on each of parallel lines inclined to the direction of movement of the recording heads with all the electromagnets being arranged on equal pitch perpendicular to this movement direction. The electromagnets are selectively actuated as the recording head moves to write a dot pattern.Type: GrantFiled: August 31, 1987Date of Patent: June 7, 1988Assignee: Pilot Man-Nen-Hitsu Kabushiki KaishaInventors: Akira Terashima, Masahiko Ikeda, Jun Takano, Noriyuki Nishiyama, Tatsuya Igawa, Kazuo Anzai
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Patent number: 4392244Abstract: A system for automatically controlling the changeover of transmission and transmission stop, and being employed in the transmitting device provided with a vibration pick-up type microphone for picking up bone-conducted voice sounds. The automatic changeover of transmission and transmission stop is attained by control signals corresponding to impact vibrations except voice signals uttered by a microphone wearer himself, transmitted through his bones and picked up by the microphone or another controlling microphone.Type: GrantFiled: December 16, 1980Date of Patent: July 5, 1983Assignee: Pilot Mannenhitsu Kabushiki KaishaInventors: Naomi Yoshizawa, Akira Terashima
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Patent number: 4323999Abstract: A system to automatically control the changeover of recording and recording stop, or transmission and transmission stop, and being employed in the recording or transmitting device provided with a vibration pick-up type microphone for picking up bone-conducted voice sounds. The automatic changeover of recording and recording stop or transmission and transmission stop is attained by control signals corresponding to impact vibrations except voice signals uttered by a microphone wearer himself, transmitted through his bones and picked up by the microphone or another controlling microphone.Type: GrantFiled: April 28, 1980Date of Patent: April 6, 1982Assignee: Pilot Mannenhitsu Kabushi KaishaInventors: Naomi Yoshizawa, Akira Terashima
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Patent number: 4202235Abstract: An electronic musical box is disclosed in which a musical score can be readily stored and reproduced and the musical score can be easily changed to another. The musical box includes a pulse generator for generating a unitary pulse for a note whose duration is the shortest in the musical score and generating integer numbers of unitary pulses for other notes in the musical score. A tone pitch generating circuit generates tone pitch signals coded by a plurality of tone pitch switches so as to correspond to the tone pitches of the notes in the musical score. The coded tone pitch signals are stored in a memory, and a musical tone generating circuit reads data stored in the memory and generates musical tones.Type: GrantFiled: January 31, 1978Date of Patent: May 13, 1980Assignee: Pilot Man-Nen Hitsu Kabushiki KaishaInventors: Yasushi Namiki, Akira Terashima, Naomi Yoshizawa