Patents by Inventor Koji Watanabe
Koji Watanabe 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: 20240152025Abstract: In a nonlinear optical element, wavelength conversion efficiency is degraded by the heat generation caused when high-intensity converted waves are generated. Therefore, the present invention provides a wavelength conversion optical element that includes a periodically poled waveguide. In the wavelength conversion optical element, the periodically poled waveguide includes: a core that performs wavelength conversion on a fundamental wave that has entered the entrance end, and emits a converted wave from the exit end; and a cladding that covers the periphery of the core, and the structure of the element gradually changes so as to achieve quasi phase matching from the entrance end toward the exit end in the periodically poled waveguide.Type: ApplicationFiled: April 12, 2021Publication date: May 9, 2024Inventors: Takahiro Kashiwazaki, Takushi Kazama, Takeshi Umeki, Osamu Tadanaga, Koji Embutsu, Nobutatsu Koshobu, Asuka Inoue, Kei Watanabe
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Publication number: 20240152023Abstract: Provided is a wavelength conversion module that can be downsized by reducing the width of the housing and can reduce the mounting space. The wavelength conversion module including a wavelength conversion element includes: a lens barrel that is provided on a side surface of a metal housing and accommodates a lens for optically coupling the wavelength conversion element to an optical fiber; and a ferrule collar that is provided on the lens barrel and fixes a metal ferrule accommodating the optical fiber, and an input port and an output port are different from each other in any of the length in the optical axis direction of a plurality of the lens barrels, the length of a plurality of the metal ferrules, or a sum length of the lens barrels and the metal ferrules.Type: ApplicationFiled: April 12, 2021Publication date: May 9, 2024Inventors: Koji Embutsu, Takeshi Umeki, Kei Watanabe, Osamu Tadanaga, Takushi Kazama, Nobutatsu Koshobu, Takahiro Kashiwazaki, Asuka Inoue
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Patent number: 11975406Abstract: A moving mechanism relatively moves a machining head emitting a laser beam, with respect to a sheet metal along a surface of the sheet metal. A beam vibrating mechanism vibrates the laser beam for irradiation on the sheet metal, while the machining head is relatively moved by the moving mechanism. A machining condition setting section sets pattern selection information to select a vibration pattern of the laser beam by the beam vibrating mechanism, and a parameter to determine a vibrating way in the vibration pattern, in accordance with machining conditions specified for each machining command to machine the sheet metal in a machining program generated to machine the sheet metal, and including a machining velocity of the sheet metal associated with relative movement of the machining head by the moving mechanism.Type: GrantFiled: October 8, 2019Date of Patent: May 7, 2024Assignee: AMADA CO., LTD.Inventors: Yoichi Tanaka, Chiaki Kawahara, Koji Funaki, Hideyuki Watanabe
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Patent number: 11976204Abstract: A composition for aqueous ink jet contains a specific dye which is one or more coloring materials selected from the group consisting of C. I. Acid Black 172 and C. I. Acid Black 194, and a specific aromatic compound which is at least one compound selected from the group consisting of compounds represented by formulae (1) to (4) below. The content of the specific aromatic compound relative to 100 parts by mass of the specific dye is 0.2 parts by mass or more and 50 parts by mass or less.Type: GrantFiled: February 6, 2019Date of Patent: May 7, 2024Assignee: SEIKO EPSON CORPORATIONInventors: Homare Kuribayashi, Shotaro Watanabe, Kei Hiruma, Masato Hanamura, Koji Imamura, Jungo Asano
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Publication number: 20240141508Abstract: A production method for producing a hydrogen gas through electrolysis of water is provided. The production method includes: decreasing a current density to a range that is greater than 0 A/cm2 and less than a value used in the electrolysis and in which the electrolysis does not stop; holding the current density for 1 second or more while introducing a gas to at least a hydrogen generating electrode; and decreasing the current density to a value at which the electrolysis does not take place so as to stop the electrolysis. It is preferable that the gas is a gas that is electrochemically inert to a fuel cell reaction. It is also preferable that the gas is at least one selected from the group consisting of nitrogen and a noble gas.Type: ApplicationFiled: March 28, 2022Publication date: May 2, 2024Inventors: Koji TANIGUCHI, Hiromu WATANABE, Takuya KITABATAKE, Yunosuke NAKAHARA
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Publication number: 20240142216Abstract: A sensor unit includes: a sensor that is attached to a measurement target object becoming deformed in response to a swing taken with the measurement target object and that generates an output signal indicating a relationship between a physical quantity related to an amount of deformation of the measurement target object and a time; a feature value generation circuit that generates a feature value, the feature value being a parameter indicating a feature of the swing, on the basis of the output signal obtained by the sensor; and a communication unit that is attached to the measurement target object and that transmits the feature value to an external device by wireless communication or wired communication.Type: ApplicationFiled: January 10, 2024Publication date: May 2, 2024Inventors: Jun MAKINO, Koji KAWANO, Nobuyuki NOZAWA, Tomoshige FURUHI, Takashi WATANABE, Takehiko IIZUKA, Kenta AGO
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Publication number: 20240144879Abstract: Provided is a highly reliable semiconductor device. The present invention relates to a shift register circuit including a plurality of stages of sequential circuits. An output signal of a sequential circuit is input to a sequential circuit in the subsequent stage. Before a sequential circuit outputs a signal and after the sequential circuit outputs the signal, the potential of a gate of a transistor included in the sequential circuit is changed in accordance with a clock signal so as to avoid voltage stress application between the gate and a source of the transistor for a long time. The shift register circuit can be applied to a scan line driver circuit of a display apparatus, for example.Type: ApplicationFiled: February 22, 2022Publication date: May 2, 2024Inventors: Satoshi YOSHIMOTO, Susumu KAWASHIMA, Kazunori WATANABE, Tomoaki ATSUMI, Koji KUSUNOKI
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Publication number: 20240143284Abstract: A data processing apparatus includes an arithmetic circuit that performs an acquiring step of acquiring swing data indicating relationship between a physical quantity concerning an amount of deformation of an object to be measured and time, a determining step of determining whether the swing data indicates the physical quantity concerning the amount of deformation of the object to be measured, which occurs when the object to be measured is swung, to determine whether the swing data is to be deleted, and a deleting step of deleting the swing data if it is determined that the swing data does not indicate the physical quantity concerning the amount of deformation of the object to be measured, which occurs when the object to be measured is swung.Type: ApplicationFiled: January 11, 2024Publication date: May 2, 2024Inventors: Jun MAKINO, Koji KAWANO, Nobuyuki NOZAWA, Tomoshige FURUHI, Takashi WATANABE, Takehiko IIZUKA, Kenta AGO
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Publication number: 20240133055Abstract: An electrolysis cell for chlor-alkali electrolysis, including an anode chamber for accommodating an anode and for accommodating an electrolytic solution, wherein the anode chamber includes a circulation structure for improving circulation of the electrolytic solution and at least one baffle plate for improving horizontal homogeneity of the electrolytic solution.Type: ApplicationFiled: February 18, 2022Publication date: April 25, 2024Applicant: THYSSENKRUPP NUCERA AG & CO. KGAAInventors: Koji KAWANISHI, Takehiro OIWA, Masaki WATANABE, Peter TOROS, Fulvio FEDERICO
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Publication number: 20240138169Abstract: A semiconductor device having a light sensing function and including a high-resolution display portion is provided. The semiconductor device includes a plurality of pixels, and the pixels each include first and second light-receiving devices, first to fifth transistors, a capacitor, and a first wiring. One electrode of the first light-receiving device is electrically connected to the first wiring, and the other electrode is electrically connected to one of a source and a drain of the first transistor. One electrode of the second light-receiving device is electrically connected to the first wiring, and the other electrode is electrically connected to one of a source and a drain of the second transistor. The other of the source and the drain of the second transistor is electrically connected to the other of the source and the drain of the first transistor.Type: ApplicationFiled: February 14, 2022Publication date: April 25, 2024Inventors: Koji KUSUNOKI, Kazunori WATANABE, Tomoaki ATSUMI, Satoshi YOSHIMOTO
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Publication number: 20240131840Abstract: A liquid discharge apparatus includes a liquid discharge head and a head drive controller to output a drive waveform including one pulse or two or more pulses selected according to a droplet size. In a case that the drive waveform includes the two or more pulses, the drive waveform includes a final pulse at an end of the two or more pulses. The final pulse includes a first expansion waveform, a first contraction waveform element, a second expansion waveform element, a second contraction waveform element, and a third expansion waveform element. A time period from a start of the first contraction waveform element to a start of the second expansion waveform element is less than 0.5 Tc. A time period from the start of the first contraction waveform element to a start of the second contraction waveform element is within a range from 0.5 Tc to 0.6 Tc.Type: ApplicationFiled: October 10, 2023Publication date: April 25, 2024Applicant: Ricoh Company, Ltd.Inventors: Hayato Watanabe, Koji Nagai
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Patent number: 11965095Abstract: A bio-electrode composition contains (A) an ionic polymer material. The component (A) is a polymer compound containing: a repeating unit-a having a structure selected from the group consisting of salts of ammonium, sodium, potassium, and silver formed with any of fluorosulfonic acid, fluorosulfonimide, and N-carbonyl-fluorosulfonamide; and a repeating unit-b having a side chain with a radical-polymerizable double bond in a structure selected from the group consisting of (meth)acrylate, vinyl ether, and styrene. Thus, the present invention provides: a bio-electrode composition capable of forming a living body contact layer for a bio-electrode to enable signal collection immediately after attachment to skin and prevention of residue on the skin after peeling from the skin; a bio-electrode including a living body contact layer formed of the bio-electrode composition; and a method for manufacturing the bio-electrode.Type: GrantFiled: March 8, 2021Date of Patent: April 23, 2024Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Jun Hatakeyama, Motoaki Iwabuchi, Osamu Watanabe, Joe Ikeda, Koji Hasegawa
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Patent number: 11960317Abstract: An intensity spectrum designing unit of a data generating device includes an initial value setting unit that sets a plurality of objects of a first generation of an intensity spectrum function A(?) and a phase spectrum function ?(?), an evaluation value calculating unit that calculates an evaluation value for each of a plurality of objects of an n-th generation, an object selecting unit that selects two or more objects used for generating a plurality of objects of an (n+1)-th generation among objects of the n-th generation on the basis of superiority of the evaluation value, and a next-generation generating unit that generates a plurality of objects of the (n+1)-th generation on the basis of the selected two or more objects. The evaluation value calculating unit, the object selecting unit, and the next-generation generating unit repeat processes while 1 is added to n until a predetermined condition is satisfied.Type: GrantFiled: February 15, 2019Date of Patent: April 16, 2024Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Koji Takahashi, Koyo Watanabe, Takashi Inoue
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Patent number: 11961871Abstract: A display device with high resolution is provided. Manufacturing cost of a display device using a micro LED as a display element is reduced. The display device includes a substrate, a plurality of transistors, and a plurality of light-emitting diodes. The plurality of light-emitting diodes are provided in a matrix over the substrate. Each of the plurality of transistors are electrically connected to at least one of the plurality of light-emitting diodes. The plurality of light-emitting diodes are positioned closer to the substrate than the plurality of transistors are. The plurality of light-emitting diodes emit light to the opposite side of the substrate.Type: GrantFiled: April 26, 2019Date of Patent: April 16, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Koji Kusunoki, Shingo Eguchi, Yosuke Tsukamoto, Kazunori Watanabe, Kouhei Toyotaka
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Publication number: 20240117097Abstract: Provided is a resin composition capable of providing a three-dimensionally photofabricated object having high heat resistance while having water solubility. The resin composition is a resin composition for three-dimensional photofabrication containing a reactive monomer, a water-soluble polymer, and a photopolymerization initiator. A cured product of the resin composition has a main tan ? peak temperature of 80° C. or higher. A 1-mm-thick cured product of the resin composition exhibits a remaining thickness of 0.7 mm or smaller after 5-hour immersion in water that is at room temperature.Type: ApplicationFiled: January 13, 2022Publication date: April 11, 2024Inventors: Koji WATANABE, Tatsuya TOKAI
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Publication number: 20240105138Abstract: A display apparatus with low-power consumption is provided. The display apparatus includes an inverter circuit and a pixel having a function of adding data, and the inverter circuit has a function of inverting data supplied from a source driver. The inverter circuit has a function of inverting data supplied from a source driver. The pixel has a function of adding data supplied from the source driver and the inverter circuit. Accordingly, the pixel can generate a voltage several times higher than the output voltage of the source driver and can supply the voltage to a display device. With such a structure, the output voltage of the source driver can be lowered, so that a display apparatus with low power consumption can be achieved.Type: ApplicationFiled: December 5, 2023Publication date: March 28, 2024Inventors: Susumu KAWASHIMA, Koji KUSUNOKI, Kazunori WATANABE, Naoto KUSUMOTO
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Publication number: 20240105120Abstract: A display apparatus capable of image capturing with high sensitivity is provided. The display apparatus is configured to include first to third switches, a first transistor, a second transistor, and a light-emitting/receiving element. The first switch is electrically connected to a gate of the first transistor. The second switch is positioned between one of a source and a drain of the first transistor and one electrode of the light-emitting/receiving element. The third switch is positioned between the one electrode of the light-emitting/receiving element and a gate of the second transistor. The other of the source and the drain of the first transistor is supplied with a first potential. The other electrode of the light-emitting/receiving element is supplied with a second potential. The light-emitting/receiving element has a function of emitting light of a first color and a function of receiving light of a second color.Type: ApplicationFiled: December 5, 2023Publication date: March 28, 2024Inventors: Susumu KAWASHIMA, Koji KUSUNOKI, Kazunori WATANABE
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Patent number: 11940703Abstract: A liquid crystal display device with a high aperture ratio is provided. The display device includes a transistor, a first insulating layer, a second insulating layer, a third insulating layer, a first conductive layer, a pixel electrode, a common electrode, and a liquid crystal layer in a pixel. The first insulating layer is positioned over a channel formation region of the transistor. The first conductive layer is positioned over the first insulating layer. The second insulating layer is positioned over the transistor, the first insulating layer, and the first conductive layer. The pixel electrode is positioned over the second insulating layer, the third insulating layer is positioned over the pixel electrode, the common electrode is positioned over the third insulating layer, and the liquid crystal layer is positioned over the common electrode. The common electrode includes a region overlapping with the first conductive layer with the pixel electrode positioned therebetween.Type: GrantFiled: May 26, 2023Date of Patent: March 26, 2024Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Kouhei Toyotaka, Kazunori Watanabe, Susumu Kawashima, Kei Takahashi, Koji Kusunoki, Masataka Nakada, Ami Sato
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Publication number: 20240099038Abstract: A display apparatus having a photoelectric conversion function with high sensitivity is provided. The light extraction efficiency of the display apparatus is increased. The display apparatus includes a light-emitting device, a light-emitting and light-receiving device, a first lens, and a second lens. The light-emitting device has a function of emitting light of a first color. The light-emitting and light-receiving device has a function of emitting light of a second color and a function of receiving light of the first color and converting it into an electric signal. The light emitted by the light-emitting device is emitted to the outside of the display apparatus through the first lens. Light enters the light-emitting and light-receiving device from the outside of the display apparatus through the second lens.Type: ApplicationFiled: October 5, 2020Publication date: March 21, 2024Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Daisuke Kubota, Taisuke KAMADA, Ryo HATSUMI, Koji KUSUNOKI, Kazunori WATANABE, Susumu KAWASHIMA
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Publication number: 20240085044Abstract: An air-conditioning apparatus includes a refrigerant circuit and a controller. The refrigerant circuit includes a main circuit and a bypass circuit. The bypass circuit is connected, by a pipe, to each of a plurality of parallel outdoor heat exchangers via a defrosting refrigerant pressure-reducing device, a defrosting flow passage switching device, and a backflow prevention device. The controller switches a flow passage for use in introduction of refrigerant using the defrosting flow passage switching device, to select one of the plurality of parallel outdoor heat exchangers as a defrosting target to be defrosted; and supplies defrosting refrigerant whose pressure is reduced by the defrosting refrigerant pressure-reducing device to the selected one of the plurality of parallel outdoor heat exchangers.Type: ApplicationFiled: November 22, 2023Publication date: March 14, 2024Inventors: Koji FUKUI, Kosuke TANAKA, Kazuya WATANABE