Patents by Inventor Yuji Miyaki
Yuji Miyaki 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: 20220412721Abstract: Provided are a probe for a three-dimensional coordinate measuring device that enable calculation of coordinates of a measurement point of a measurement target with high accuracy. The probe is used in the three-dimensional coordinate measuring device that calculates coordinates of a measurement point of a measurement target. In the probe, a plurality of markers whose image is captured by an imaging unit are held by a probe holding unit. A stylus, which is brought into contact with the measurement target to specify the measurement point, is attached to the probe holding unit. The stylus has a predetermined positional relationship with respect to the plurality of measurement markers. The probe holding unit is connected to a probe casing in a freely movable manner. A magnetic sensor that outputs a signal corresponding to a displacement amount of the probe holding unit with respect to the probe casing is provided inside the probe casing.Type: ApplicationFiled: May 13, 2022Publication date: December 29, 2022Applicant: Keyence CorporationInventors: Yuji MIYAKI, Shuji SHIMONAKA
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Patent number: 8411360Abstract: Provided is a continuous web of polarizing film for an organic EL display device which has a thickness of 10 ?m or less and exhibits high optical characteristics. The polarizing film for an organic EL display device is made of a polyvinyl alcohol type resin having a molecularly oriented dichroic material, and formed through stretching to have a thickness of 10 ?m or less and exhibit optical characteristics satisfying the following conditions: T?42.5; and P?99.5, wherein T is a single layer transmittance, and P is a polarization rate. The polarizing film for an organic EL display device may be prepared by subjecting a laminate comprising a non-crystallizable ester type thermoplastic resin substrate and the polyvinyl alcohol type resin layer formed on the substrate, to 2-stage stretching consisting of preliminary in-air stretching and in-boric-acid-solution stretching.Type: GrantFiled: September 2, 2011Date of Patent: April 2, 2013Assignee: Nitto Denko CorporationInventors: Takeharu Kitagawa, Tomohiro Mori, Yuji Miyaki, Shusaku Goto, Minoru Miyatake, Takashi Kamijo
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Publication number: 20120056211Abstract: Provided is a continuous web of polarizing film for an organic EL display device which has a thickness of 10 ?m or less and exhibits high optical characteristics. The polarizing film for an organic EL display device is made of a polyvinyl alcohol type resin having a molecularly oriented dichroic material, and formed through stretching to have a thickness of 10 ?m or less and exhibit optical characteristics satisfying the following conditions: T?42.5; and P?99.5, wherein T is a single layer transmittance, and P is a polarization rate. The polarizing film for an organic EL display device may be prepared by subjecting a laminate comprising a non-crystallizable ester type thermoplastic resin substrate and the polyvinyl alcohol type resin layer formed on the substrate, to 2-stage stretching consisting of preliminary in-air stretching and in-boric-acid-solution stretching.Type: ApplicationFiled: September 2, 2011Publication date: March 8, 2012Applicant: NITTO DENKO CORPORATIONInventors: Takeharu KITAGAWA, Tomohiro MORI, Yuji MIYAKI, Shusaku GOTO, Minoru MIYATAKE, Takashi KAMIJO
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Publication number: 20100214520Abstract: A liquid crystal display device (A1) includes a plurality of pixels arranged in a matrix, a plurality of first electrodes (2R, 2G), a plurality of second electrodes (3) intersecting the first electrodes, a liquid crystal layer arranged between the first electrodes and the second electrodes, a color filter directly or indirectly covering each of the first electrodes, and a driver (7) for supplying image display signals to the first electrodes and the second electrodes. The first electrodes are connected to scanning signal supply terminals of the driver to periodically receive a scanning signal. The second electrodes are connected to control signal supply terminals of the driver to selectively receive a control signal. The driver causes the liquid crystal layer to be in either an ON state or an OFF state by supplying the scanning signal and the control signal to the first electrodes and the second electrodes, respectively.Type: ApplicationFiled: December 13, 2006Publication date: August 26, 2010Applicant: ROHM Co., Ltd.Inventors: Yuji Miyaki, Kazuyuki Hiratsuka, Yasuhiro Niga
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Patent number: 7177548Abstract: An optical module which can achieve miniaturization, high performance and cost reduction is, provided. The optical module includes a photoelectric component, a high-speed signal processing part which processes a high-speed signal photoelectrically converted by the photoelectric component, and a low-speed signal processing part which processes a low-speed signal. The high-speed signal processing part and the low-speed signal processing part are overlapped with each other in a vertical direction and electrically connected to each other.Type: GrantFiled: November 4, 2004Date of Patent: February 13, 2007Assignee: Fujitsu LimitedInventors: Yasuhide Kuroda, Masakazu Kishi, Yoshinori Nakane, Satoru Yamada, Kenichiro Tsubone, Yuji Miyaki, Shigeichi Izumi, Kazuhiro Suzuki
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Patent number: 7061950Abstract: The present invention aims at providing a drive circuit and a drive method for a semiconductor laser module including an electro-absorption type optical modulator, capable of obtaining a stable optical output without controlling a module temperature to be constant. To this end, the drive circuit of the present invention detects a temperature in the semiconductor laser module comprising a semiconductor laser and an EA modulator, and based on the detected temperature, controls a drive current supplied to the semiconductor laser and a bias voltage and a modulated electric signal applied to the EA modulator, so that average power, an extinction ratio and an optical cross point of an optical signal output from the semiconductor laser module are held to be constant.Type: GrantFiled: January 31, 2003Date of Patent: June 13, 2006Assignee: Fujitsu LimitedInventors: Kazuhiro Hongo, Yuji Miyaki, Kazuhiro Suzuki
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Publication number: 20050074243Abstract: An optical module which can achieve miniaturization, high performance and cost reduction is, provided. The optical module includes a photoelectric component, a high-speed signal processing part which processes a high-speed signal photoelectrically converted by the photoelectric component, and a low-speed signal processing part which processes a low-speed signal. The high-speed signal processing part and the low-speed signal processing part are overlapped with each other in a vertical direction and electrically connected to each other.Type: ApplicationFiled: November 4, 2004Publication date: April 7, 2005Applicant: FUJITSI LIMITEDInventors: Yasuhide Kuroda, Masakazu Kishi, Yoshinori Nakane, Satoru Yamada, Kenichiro Tsubone, Yuji Miyaki, Shigeichi Izumi, Kazuhiro Suzuki
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Patent number: 6832049Abstract: An optical module which can achieve miniaturization, high performance and cost reduction is provided. The optical module includes a photoelectric component, a high-speed signal processing part which processes a high-speed signal photoelectrically converted by the photoelectric component, and a low-speed signal processing part which processes a low-speed signal. The high-speed signal processing part and the low-speed signal processing part are overlapped with each other in a vertical direction and electrically connected to each other.Type: GrantFiled: June 18, 1999Date of Patent: December 14, 2004Assignee: Fujitsu LimitedInventors: Yasuhide Kuroda, Masakazu Kishi, Yoshinori Nakane, Satoru Yamada, Kenichiro Tsubone, Yuji Miyaki, Shigeichi Izumi, Kazuhiro Suzuki
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Publication number: 20040028099Abstract: The present invention aims at providing a drive circuit and a drive method for a semiconductor laser module including an electro-absorption type optical modulator, capable of obtaining a stable optical output without controlling a module temperature to be constant. To this end, the drive circuit of the present invention detects a temperature in the semiconductor laser module comprising a semiconductor laser and an EA modulator, and based on the detected temperature, controls a drive current supplied to the semiconductor laser and a bias voltage and a modulated electric signal applied to the EA modulator, so that average power, an extinction ratio and an optical cross point of an optical signal output from the semiconductor laser module are held to be constant.Type: ApplicationFiled: January 31, 2003Publication date: February 12, 2004Applicant: Fujitsu LimitedInventors: Kazuhiro Hongo, Yuji Miyaki, Kazuhiro Suzuki
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Patent number: 5732096Abstract: The control circuit for supplying a driving current to a laser diode makes it possible to keep the laser driving current variable in a wide range.Type: GrantFiled: May 31, 1996Date of Patent: March 24, 1998Assignee: Fujitsu LimitedInventors: Kazuhiro Suzuki, Hiroshi Kuzukami, Yuji Miyaki, Akihiko Yasuda, Yoshinori Ohkuma
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Patent number: 5680246Abstract: The optical amplifier includes a doped fiber doped with a rare earth element, a pumping light source, means for introducing signal light and pumping light into the doped fiber, detection means for detecting whether or not amplified signal light is included in light outputted from the doped fiber, and means for decreasing the intensity of the pumping light when it is detected that amplified signal light is not included. It can be possible to eliminate an influence of an optical surge arising from a characteristic of the doped fiber.Type: GrantFiled: March 28, 1995Date of Patent: October 21, 1997Assignee: Fujitsu LimitedInventors: Tsukasa Takahashi, Hiroyuki Itou, Yuji Tamura, Michikazu Shima, Kazuo Yamane, Yumiko Kawasaki, Keisuke Imai, Yoshinori Ohkuma, Kazuhiro Suzuki, Yasunori Nagakubo, Takashi Tsuda, Yuji Miyaki
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Patent number: 5625181Abstract: A light receipt system has a bias circuit and a light-receipt element. The bias circuit controls light input power to the light-receipt element to the optimum multiplication factor. The bias circuit of the light-receipt element has a first resistor, a second resistor, and a third resistor. The first resistor and the second resistor are connected in parallel, and the light-receipt element is connected between a connection of the first resistor and the second resistor, and the third resistor. A bypass current path is provided, connected to a junction point between the first resistor and the second resistor.Type: GrantFiled: August 10, 1994Date of Patent: April 29, 1997Assignee: Fujitsu LimitedInventors: Akihiko Yasuda, Setsuo Misaizu, Hisaya Sakamoto, Yuji Miyaki, Norio Nagase, Hiroshi Kuzukami
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Patent number: 5604759Abstract: A drive circuit drives an electronic device that converts electric power into light or heat energy. The drive circuit has a switch connected to the electronic device in series, and a control circuit for providing, in response to an input control signal, a pulse modulation signal for controlling the switch. The frequency of the pulse modulation signal is higher than the response frequency of the electronic device. Alternatively, the drive circuit may have first to fourth switches disposed on both sides of the electronic device, for passing a current in different directions through the electronic device, and a control circuit for controlling the switches to change the direction and magnitude of the average of the current flowing through the electronic device in response to an input control signal.Type: GrantFiled: January 28, 1993Date of Patent: February 18, 1997Assignee: Fujitsu LimitedInventors: Yuji Miyaki, Michikazu Shima
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Patent number: 4816699Abstract: A slice amplifier using field effect transistors (FET's) is provided which is suitable for achieving a correct discrimination of logics "0" and "1" of an input signal (S.sub.in) at very high speed by reshaping the input signal (S.sub.in) into rectangular shaped pulses (S.sub.out). The top and bottom of each pulse are determined to predetermined constant levels by using a first FET (T.sub.1) and a second FET (T.sub.2) with the aid of a first monitor and control unit (41) and second monitor and control unit (42). The first and second monitor and control units (41, 42) monitor the drain voltages of the first and second FET's (T.sub.1, T.sub.2) and control the gate-source voltages thereof, respectively, so as to realize the predetermined constant levels.Type: GrantFiled: October 9, 1987Date of Patent: March 28, 1989Assignee: Fujitsu LimitedInventors: Masakazu Mori, Tetsuo Wada, Yuji Miyaki, Kazuo Yamane, Kazuhiro Suzuki, Yoshinori Ohkuma