Patents by Inventor Hiroyuki Deguchi
Hiroyuki Deguchi 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: 20240150691Abstract: There is provided a bile duct chip that is a bile duct chip (200) including a membrane (210) through which substances are movable from one surface to the other surface, a first substrate (221) having a recessed part that forms a first flow path (220), and a second substrate (231) having a recessed part that forms a second flow path (230), in which the first substrate (221), the membrane (210), the second substrate (231) are stacked in this order, the recessed part of the first substrate (221) has an opening portion facing the one surface of the membrane (210), the recessed part of the second substrate has an opening portion facing the other surface of the membrane (210), the one surface of the membrane (210) forms a part of the first flow path (220), the other surface of the membrane (210) forms a part of the second flow path (230), the first flow path (220) and the second flow path (230) communicate with each other through the membrane (210), and bile duct epithelial cells (222) are disposed on a surface ofType: ApplicationFiled: March 9, 2022Publication date: May 9, 2024Inventors: Kazuo TAKAYAMA, Yusuke TORISAWA, Kenji OSAFUNE, Maki KOTAKA, Sayaka DEGUCHI, Hiroyuki MIZUGUCHI
-
Patent number: 10686294Abstract: A method of manufacturing a semiconductor element includes forming a first silicon oxide film on a semiconductor wafer under a first film forming condition; forming a second silicon oxide film on the first silicon oxide film under a second film forming condition, a density of the second silicon oxide film being lower than a density of the first silicon oxide film; coating, with a photoresist, a region including the second silicon oxide film; exposing the photoresist using a photomask having an aperture and being disposed such that at least a portion of an edge of the aperture is disposed on the second silicon oxide film; removing a portion of the photoresist to form a photoresist pattern that has an overhang shape in a cross-section of the photoresist pattern; forming an electrode film on a region including the photoresist pattern; and performing lift-off by removing the photoresist pattern.Type: GrantFiled: February 21, 2019Date of Patent: June 16, 2020Assignee: NICHIA CORPORATIONInventors: Yoshihiko Furukawa, Hiroyuki Deguchi
-
Publication number: 20190260178Abstract: A method of manufacturing a semiconductor element includes forming a first silicon oxide film on a semiconductor wafer under a first film forming condition; forming a second silicon oxide film on the first silicon oxide film under a second film forming condition, a density of the second silicon oxide film being lower than a density of the first silicon oxide film; coating, with a photoresist, a region including the second silicon oxide film; exposing the photoresist using a photomask having an aperture and being disposed such that at least a portion of an edge of the aperture is disposed on the second silicon oxide film; removing a portion of the photoresist to form a photoresist pattern that has an overhang shape in a cross-section of the photoresist pattern; forming an electrode film on a region including the photoresist pattern; and performing lift-off by removing the photoresist pattern.Type: ApplicationFiled: February 21, 2019Publication date: August 22, 2019Applicant: NICHIA CORPORATIONInventors: Yoshihiko FURUKAWA, Hiroyuki DEGUCHI
-
Patent number: 8014044Abstract: An image scanning device of the present invention includes a platen, an image scanning part that scans an image on the manuscript, a light source that irradiates light from the back side of the platen, a platen cover that is allowed to be positioned in a closed state or in an opened state, a light receiving part that is configured to receive light from the manuscript scanning area on the back side of the platen, a range obtaining part that is configured to obtain range between the amount of received light of the light receiving part in the opened state of the platen cover and the amount of received light of the light receiving part in the closed state of the platen cover, and a manuscript detecting part that is configured to detect existence of the manuscript in a manuscript scanning area of the platen based on the range.Type: GrantFiled: August 1, 2008Date of Patent: September 6, 2011Assignee: Kyocera Mita CorporationInventors: Yuki Shiga, Hiroyuki Deguchi
-
Patent number: 7792430Abstract: The present invention provides an automatic power restoring method capable of reliably detecting continuity by the dissolution of a line fault, to restore the optical power, even in a structure including an optical amplification medium on an optical transmission path and an optical communication system using the method. To this end, in an optical communication system to which the automatic power restoring method of the invention is applied, a pilot signal having a low transmission rate, a wavelength of which is set based on loss wavelength characteristics obtained by combining loss wavelength characteristics of an optical fiber used for the optical transmission path and loss wavelength characteristics of the optical amplification medium on the optical transmission path, is transmitted and received between an optical transmitting station and an optical receiving station when a line fault occurs, and a detection of continuity is thus performed.Type: GrantFiled: April 21, 2008Date of Patent: September 7, 2010Assignees: Fujitsu Limited, Nippon Telegraph & Telephone CorporationInventors: Hiroyuki Deguchi, Shinichirou Harasawa, Hideki Maeda, Akira Naka, Gentaro Funatsu
-
Patent number: 7664392Abstract: The present invention provides an automatic power restoring method capable of reliably detecting continuity by the dissolution of a line fault, to restore the optical power, even in a structure including an optical amplification medium on an optical transmission path and an optical communication system using the method. To this end, in an optical communication system to which the automatic power restoring method of the invention is applied, a pilot signal having a low transmission rate, a wavelength of which is set based on loss wavelength characteristics obtained by combining loss wavelength characteristics of an optical fiber used for the optical transmission path and loss wavelength characteristics of the optical amplification medium on the optical transmission path, is transmitted and received between an optical transmitting station and an optical receiving station when a line fault occurs, and a detection of continuity is thus performed.Type: GrantFiled: April 21, 2008Date of Patent: February 16, 2010Assignees: Fujitsu Limited, Nippon Telegraph and Telephone CorporationInventors: Hiroyuki Deguchi, Shinichirou Harasawa, Hideki Maeda, Akira Naka, Gentaro Funatsu
-
Patent number: 7586672Abstract: A reliable optical transmission system with an improved signal control mechanism that avoids abrupt power variations of light beams, thereby preventing optical supervisory channel (OSC) signals from experiencing errors. An optical amplifier amplifies main signals under the control of an optical amplifier controller, which spends a first predetermined time to raise the output power of the optical amplifier up to a desired level. A pump light source produces a pump beam for injection to a fiber-optic transmission line so as to make it serve as an amplifying medium. The pump light source is controlled by a pump light source controller that spends a second predetermined time to raise the pump beam to a desired power level. This stepwise start-up process of the amplifier power and pump beam power prevents OSC signals from experiencing abrupt power variations.Type: GrantFiled: June 12, 2007Date of Patent: September 8, 2009Assignee: Fujitsu LimitedInventors: Eiji Ishikawa, Hiroto Ikeda, Hiroyuki Deguchi
-
Publication number: 20090175616Abstract: The present invention provides an automatic power restoring method capable of reliably detecting continuity by the dissolution of a line fault, to restore the optical power, even in a structure including an optical amplification medium on an optical transmission path and an optical communication system using the method. To this end, in an optical communication system to which the automatic power restoring method of the invention is applied, a pilot signal having a low transmission rate, a wavelength of which is set based on loss wavelength characteristics obtained by combining loss wavelength characteristics of an optical fiber used for the optical transmission path and loss wavelength characteristics of the optical amplification medium on the optical transmission path, is transmitted and received between an optical transmitting station and an optical receiving station when a line fault occurs, and a detection of continuity is thus performed.Type: ApplicationFiled: April 21, 2008Publication date: July 9, 2009Applicants: Fujitsu Limited, Nippon Telegraph and Telephone CorporationInventors: Hiroyuki Deguchi, Shinichirou Harasawa, Hideki Maeda, Akira Naka, Gentaro Funatsu
-
Patent number: 7541805Abstract: A magnetic characteristics measurement system includes a superconducting quantum interference device which detects a magnetization of a sample located in the vicinity of a superconducting pickup coil and outputs an electrical signal representing the magnetization. A coil is disposed to surround the superconducting pickup coil and is connected to an AC power supply so as to generate an alternating magnetic field. The AC signal output from the superconducting quantum interference device is sampled by use of an A/D converter which is operable in an audio frequency range and outputs a digital signal corresponding to the AC signal. Phase adjustment is performed so as to optimally correct a time shift of the digital signal in relation to a reference voltage signal. The phase-adjusted signal is subjected to Fourier transformation processing so as to detect harmonic components as magnetic characteristics.Type: GrantFiled: March 29, 2007Date of Patent: June 2, 2009Assignee: Kyushu Institute of TechnologyInventors: Masaki Mito, Kunihiko Irie, Junpei Yamada, Seishi Takagi, Hiroyuki Deguchi
-
Patent number: 7538640Abstract: A waveguide and an attenuation pole waveguide bandpass filter with a simple structure without any additional structure such as a negative cross coupling between resonators. The attenuation pole waveguide bandpass filter arranged at right angle to the longitudinal direction (radio wave propagation direction) is composed only of conductors. The conductor comprises depressions each opening outwardly and having a non-conducting region which continues from the inside of the opening section to the outside, and a window in the conductor section between these opposed depressions. In an alternative embodiment, such conductor shall be covered by a dielectric such as a resin.Type: GrantFiled: December 26, 2005Date of Patent: May 26, 2009Assignee: The DoshishaInventors: Mikio Tsuji, Hiroyuki Deguchi, Masataka Ohira
-
Publication number: 20090051983Abstract: An image scanning device of the present invention includes a platen, an image scanning part that scans an image on the manuscript, a light source that irradiates light from the back side of the platen, a platen cover that is allowed to be positioned in a closed state or in an opened state, a light receiving part that is configured to receive light from the manuscript scanning area on the back side of the platen, a range obtaining part that is configured to obtain range between the amount of received light of the light receiving part in the opened state of the platen cover and the amount of received light of the light receiving part in the closed state of the platen cover, and a manuscript detecting part that is configured to detect existence of the manuscript in a manuscript scanning area of the platen based on the range.Type: ApplicationFiled: August 1, 2008Publication date: February 26, 2009Applicant: KYOCERA MITA CORPORATIONInventors: Yuki SHIGA, Hiroyuki DEGUCHI
-
Publication number: 20080317461Abstract: The present invention provides an automatic power restoring method capable of reliably detecting continuity by the dissolution of a line fault, to restore the optical power, even in a structure including an optical amplification medium on an optical transmission path and an optical communication system using the method. To this end, in an optical communication system to which the automatic power restoring method of the invention is applied, a pilot signal having a low transmission rate, a wavelength of which is set based on loss wavelength characteristics obtained by combining loss wavelength characteristics of an optical fiber used for the optical transmission path and loss wavelength characteristics of the optical amplification medium on the optical transmission path, is transmitted and received between an optical transmitting station and an optical receiving station when a line fault occurs, and a detection of continuity is thus performed.Type: ApplicationFiled: April 21, 2008Publication date: December 25, 2008Applicants: Fujitsu Limited, Nippon Telegraph and Telephone CorporationInventors: Hiroyuki Deguchi, Shinichirou Harasawa, Hideki Maeda, Akira Naka, Gentaro Funatsu
-
Patent number: 7437069Abstract: The present invention provides an automatic power restoring method capable of reliably detecting continuity by the dissolution of a line fault, to restore the optical power, even in a structure including an optical amplification medium on an optical transmission path and an optical communication system using the method. To this end, in an optical communication system to which the automatic power restoring method of the invention is applied, a pilot signal having a low transmission rate, a wavelength of which is set based on loss wavelength characteristics obtained by combining loss wavelength characteristics of an optical fiber used for the optical transmission path and loss wavelength characteristics of the optical amplification medium on the optical transmission path, is transmitted and received between an optical transmitting station and an optical receiving station when a line fault occurs, and a detection of continuity is thus performed.Type: GrantFiled: March 5, 2004Date of Patent: October 14, 2008Assignee: Fujitsu LimitedInventors: Hiroyuki Deguchi, Shinichirou Harasawa, Hideki Maeda, Akira Naka, Gentaro Funatsu
-
Publication number: 20080197944Abstract: A waveguide and an attenuation pole waveguide bandpass filter with a simple structure without any additional structure such as a negative cross coupling between resonators. The attenuation pole waveguide bandpass filter arranged at right angle to the longitudinal direction (radio wave propagation direction) is composed only of conductors. The conductor comprises depressions each opening outwardly and having a non-conducting region which continues from the inside of the opening section to the outside, and a window in the conductor section between these opposed depressions. In an alternative embodiment, such conductor shall be covered by a dielectric such as a resin.Type: ApplicationFiled: December 26, 2005Publication date: August 21, 2008Applicant: THE DOSHISHAInventors: Mikio Tsuji, Hiroyuki Deguchi, Masataka Ohira
-
Publication number: 20080074110Abstract: A magnetic characteristics measurement system includes a superconducting quantum interference device which detects a magnetization of a sample located in the vicinity of a superconducting pickup coil and outputs an electrical signal representing the magnetization. A coil is disposed to surround the superconducting pickup coil and is connected to an AC power supply so as to generate an alternating magnetic field. The AC signal output from the superconducting quantum interference device is sampled by use of an A/D converter which is operable in an audio frequency range and outputs a digital signal corresponding to the AC signal. Phase adjustment is performed so as to optimally correct a time shift of the digital signal in relation to a reference voltage signal. The phase-adjusted signal is subjected to Fourier transformation processing so as to detect harmonic components as magnetic characteristics.Type: ApplicationFiled: March 29, 2007Publication date: March 27, 2008Inventors: Masaki Mito, Kunihiko Irie, Junpei Yamada, Seishi Takagi, Hiroyuki Deguchi
-
Publication number: 20070242347Abstract: A reliable optical transmission system with an improved signal control mechanism that avoids abrupt power variations of light beams, thereby preventing optical supervisory channel (OSC) signals from experiencing errors. An optical amplifier amplifies main signals under the control of an optical amplifier controller, which spends a first predetermined time to raise the output power of the optical amplifier up to a desired level. A pump light source produces a pump beam for injection to a fiber-optic transmission line so as to make it serve as an amplifying medium. The pump light source is controlled by a pump light source controller that spends a second predetermined time to raise the pump beam to a desired power level. This stepwise start-up process of the amplifier power and pump beam power prevents OSC signals from experiencing abrupt power variations.Type: ApplicationFiled: June 12, 2007Publication date: October 18, 2007Applicant: Fujitsu LimitedInventors: Eiji Ishikawa, Hiroto Ikeda, Hiroyuki Deguchi
-
Patent number: 7251072Abstract: A reliable optical transmission system with an improved signal control mechanism that avoids abrupt power variations of light beams, thereby preventing optical supervisory channel (OSC) signals from experiencing errors. An optical amplifier amplifies main signals under the control of an optical amplifier controller, which spends a first predetermined time to raise the output power of the optical amplifier up to a desired level. A pump light source produces a pump beam for injection to a fiber-optic transmission line so as to make it serve as an amplifying medium. The pump light source is controlled by a pump light source controller that spends a second predetermined time to raise the pump beam to a desired power level. This stepwise start-up process of the amplifier power and pump beam power prevents OSC signals from experiencing abrupt power variations.Type: GrantFiled: August 7, 2003Date of Patent: July 31, 2007Assignee: Fujitsu LimitedInventors: Toshihiro Ohtani, Tsukasa Takahashi, Eiji Ishikawa, Hiroto Ikeda, Hiroyuki Deguchi
-
Patent number: 7092149Abstract: An input monitoring system is provided in an optical amplifying repeater to monitor a level of an optical input signal. A monitored level of the optical input signal is used to detect a fault on an optical transmission path or to control a bias current for a laser diode which emits and supplies an exciting signal for exciting an optical fiber amplifier. To accurately monitor a level of the optical input signal, the input monitoring system comprises an input terminal supplied with the optical input signal, an optical fiber amplifier for amplifying the optical input signal, a first photo diode for detecting and outputting an electric signal corresponding a level of the optical input signal, and an optical switch operatively connected to the input terminal, the optical fiber amplifier and first photo diode for switching the optical input signal alternatively into the optical fiber amplifier and the first photo diode.Type: GrantFiled: May 21, 1998Date of Patent: August 15, 2006Assignee: Fujitsu LimitedInventors: Shinichirou Harasawa, Hiroyuki Deguchi, Masuo Suyama
-
Patent number: 6980745Abstract: An optical transmission system ensuring high-quality monitor control even if an optical fiber fault occurs. A monitor instruction sending unit sends a monitor instruction. An operating condition recognizing unit receives a response signal and recognizes the operating condition. A filtering unit filters the monitor instruction and the response signal. A monitor control unit monitors the operating condition of its own repeater in response to the monitor instruction, and generates resultant response information. A pump unit generates a pump light to cause Raman amplification within an optical fiber transmission medium. A regeneration control unit performs a regeneration control of the response signal to thereby create a regenerated signal. A modulation control unit modulates the pump light by the response information or the regenerated signal to thereby generate the response signal.Type: GrantFiled: December 14, 2001Date of Patent: December 27, 2005Assignee: Fujitsu LimitedInventors: Hiroyuki Deguchi, Shin-ichirou Harasawa, Izumi Yokota
-
Publication number: 20040213567Abstract: The present invention provides an automatic power restoring method capable of reliably detecting continuity by the dissolution of a line fault, to restore the optical power, even in a structure including an optical amplification medium on an optical transmission path and an optical communication system using the method. To this end, in an optical communication system to which the automatic power restoring method of the invention is applied, a pilot signal having a low transmission rate, a wavelength of which is set based on loss wavelength characteristics obtained by combining loss wavelength characteristics of an optical fiber used for the optical transmission path and loss wavelength characteristics of the optical amplification medium on the optical transmission path, is transmitted and received between an optical transmitting station and an optical receiving station when a line fault occurs, and a detection of continuity is thus performed.Type: ApplicationFiled: March 5, 2004Publication date: October 28, 2004Applicants: Fujitsu Limited & Nippon Telegraph, Telephone CorporationInventors: Hiroyuki Deguchi, Shinichirou Harasawa, Hideki Maeda, Akira Naka, Gentaro Funatsu