Patents by Inventor Akio Morimoto
Akio Morimoto 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: 20220315731Abstract: A carbon fiber reinforced composite material includes carbon fiber and a thermosetting resin composition. The thermosetting resin composition is a cured product of a liquid composition that contains unsaturated polyester, a curing agent, a polymerization initiator, and a nanocarbon/nanocellulose complex containing nanocarbon modified by functional a group and nanocellulose. The nanocarbon/nanocellulose complex is dispersed in the thermosetting resin composition. The thermosetting resin composition contains 0.05 to 15% by weight of the nanocarbon/nanocellulose complex. A maximum point stress of the carbon fiber reinforced composite material in a tensile test according to JIS K 7164 is 410 N/mm2 or more. A maximum point stress of the carbon fiber reinforced composite material in a three-point bending test according to JIS K 7171 is 310 N/mm2 or more.Type: ApplicationFiled: June 23, 2020Publication date: October 6, 2022Applicants: The University of TokyoInventors: Ichiro SAKATA, Bunshi FUGETSU, Takayuki UEKI, Akio MORIMOTO, Naoyuki FURUSHO
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Patent number: 8223772Abstract: A clock supply device includes a receiving unit configured to receive frame synchronization packets from an asynchronous network and generate timing signals; a phase comparing unit configured to perform phase comparison by comparing phases of the timing signals generated by the receiving unit and clock signals generated by an internal oscillating unit; a phase variation detection unit configured to detect a frequency variation of the frame synchronization packets based on a trend of a variation amount of a phase difference that is obtained by performing a statistical process on count values obtained as a result of the phase comparison; and an oscillating frequency control unit configured to control an oscillating frequency of the internal oscillating unit when the phase variation detection unit detects the frequency variation of the frame synchronization packets.Type: GrantFiled: January 25, 2010Date of Patent: July 17, 2012Assignee: Fujitsu LimitedInventors: Takashi Nakajima, Akio Morimoto, Kazunori Kawabe, Tatsuru Iwaoka
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Publication number: 20100189109Abstract: A clock supply device includes a receiving unit configured to receive frame synchronization packets from an asynchronous network and generate timing signals; a phase comparing unit configured to perform phase comparison by comparing phases of the timing signals generated by the receiving unit and clock signals generated by an internal oscillating unit; a phase variation detection unit configured to detect a frequency variation of the frame synchronization packets based on a trend of a variation amount of a phase difference that is obtained by performing a statistical process on count values obtained as a result of the phase comparison; and an oscillating frequency control unit configured to control an oscillating frequency of the internal oscillating unit when the phase variation detection unit detects the frequency variation of the frame synchronization packets.Type: ApplicationFiled: January 25, 2010Publication date: July 29, 2010Applicant: FUJITSU LIMITEDInventors: Takashi Nakajima, Akio Morimoto, Kazunori Kawabe, Tatsuru Iwaoka
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Patent number: 7724751Abstract: A first communication device receives an ATM cell bound for a second ATM device from a first ATM device via an ATM interface, and then the first communication device sends a data frame including the ATM cell to the second ATM device via wide area Ethernet. In addition, the first communication device sends a synchronization frame to the second ATM device via the wide area Ethernet continuously at a predetermined time interval in accordance with a clock frequency of the first ATM device. A second communication device receives the synchronization frame and measures a clock frequency of the first ATM device in accordance with a time interval of receiving the synchronization frame so as to reproduce a clock having the same frequency as the measured clock frequency. After that, the second communication device sends the clock to the second ATM device via an ATM interface.Type: GrantFiled: April 25, 2005Date of Patent: May 25, 2010Assignee: Fujitsu LimitedInventors: Norihisa Uchimoto, Koji Tatsumi, Kazuhisa Shimazaki, Koichiro Yamada, Satoshi Namura, Akio Morimoto, Michio Kusayanagi
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Publication number: 20090252169Abstract: A first communication device receives an ATM cell bound for a second ATM device from a first ATM device via an ATM interface, and then the first communication device sends a data frame including the ATM cell to the second ATM device via wide area Ethernet. In addition, the first communication device sends a synchronization frame to the second ATM device via the wide area Ethernet continuously at a predetermined time interval in accordance with a clock frequency of the first ATM device. A second communication device receives the synchronization frame and measures a clock frequency of the first ATM device in accordance with a time interval of receiving the synchronization frame so as to reproduce a clock having the same frequency as the measured clock frequency. After that, the second communication device sends the clock to the second ATM device via an ATM interface.Type: ApplicationFiled: June 11, 2009Publication date: October 8, 2009Applicant: Fujitsu LimitedInventors: Norihisa UCHIMOTO, Koji Tatsumi, Kazuhisa Shimazaki, Koichiro Yamada, Satoshi Namura, Akio Morimoto, Michio Kusayanagi
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Patent number: 7599376Abstract: A converter for connecting its ATM network with other ATM networks through a LAN, which is provided with an address translation table storing external VPIs, internal VPIs uniquely assigned to the LAN, and opposing MAC addresses for opposing converters in correspondence and a processing unit for performing control for transmitting, to the LAN, frames changed from the external VPI/VCIs of headers of cells from its ATM network to the internal VPI/VCIs by referring to the address translation table and having opposing MAC addresses corresponding to the internal VPI/VCIs attached, removing the opposing MAC addresses of frames received from the LAN by referring to the address translation table, and transmitting cells changed from internal VPI/VCIs to external VPI/VCIs to its ATM network.Type: GrantFiled: June 9, 2005Date of Patent: October 6, 2009Assignee: Fujitsu LimitedInventors: Shinya Nakagaki, Toshikazu Inoue, Kazuya Kumazaki, Mineharu Hattori, Tetsuji Ichikawa, Nobuo Iguchi, Akio Morimoto, Michio Kusayanagi
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Publication number: 20090041031Abstract: A converter for connecting its ATM network with other ATM networks through a LAN, which is provided with an address translation table storing external VPIs, internal VPIs uniquely assigned to the LAN, and opposing MAC addresses for opposing converters in correspondence and a processing unit for performing control for transmitting, to the LAN, frames changed from the external VPI/VCIs of headers of cells from its ATM network to the internal VPI/VCIs by referring to the address translation table and having opposing MAC addresses corresponding to the internal VPI/VCIs attached, removing the opposing MAC addresses of frames received from the LAN by referring to the address translation table, and transmitting cells changed from internal VPI/VCIs to external VPI/VCIs to its ATM network.Type: ApplicationFiled: October 7, 2008Publication date: February 12, 2009Applicant: FUJITSU LIMITEDInventors: Shinya Nakagaki, Toshikazu Inoue, Kazuya Kumazaki, Mineharu Hattori, Tetsuji Ichikawa, Nobuo Iguchi, Akio Morimoto, Michio Kusayanagi
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Patent number: 7113700Abstract: An optical transmission system includes an optical wavelength branching unit that shifts a wavelength transmission band in the short-wavelength or long-wavelength directions based on a branching filter operation temperature, and performs a branching operation on a wavelength-multiplexed signal. A reception transponder performs decoding on an error correction code. An error correction monitoring unit gathers an error correction amount upon which a branching filter temperature control unit sets the branching filter operation temperature. A transmission transponder performs encoding on an error correction code. An optical wavelength combining unit shifts the wavelength transmission band in the opposite direction from the shifting direction based on a combining filter operation temperature, to perform a combining operation on optical signals and output a wavelength-multiplexed optical signal.Type: GrantFiled: February 25, 2003Date of Patent: September 26, 2006Assignee: Fujitsu LimitedInventors: Yoshihiro Shimizu, Makoto Takakuwa, Shoji Yoshida, Tooru Matsumoto, Akio Morimoto
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Publication number: 20060182125Abstract: A converter for connecting its ATM network with other ATM networks through a LAN, which is provided with an address translation table storing external VPIs, internal VPIs uniquely assigned to the LAN, and opposing MAC addresses for opposing converters in correspondence and a processing unit for performing control for transmitting, to the LAN, frames changed from the external VPI/VCIs of headers of cells from its ATM network to the internal VPI/VCIs by referring to the address translation table and having opposing MAC addresses corresponding to the internal VPI/VCIs attached, removing the opposing MAC addresses of frames received from the LAN by referring to the address translation table, and transmitting cells changed from internal VPI/VCIs to external VPI/VCIs to its ATM network.Type: ApplicationFiled: June 9, 2005Publication date: August 17, 2006Inventors: Shinya Nakagaki, Toshikazu Inoue, Kazuya Kumazaki, Mineharu Hattori, Tetsuji Ichikawa, Nobuo Iguchi, Akio Morimoto, Michio Kusayanagi
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Publication number: 20060109849Abstract: A first communication device receives an ATM cell bound for a second ATM device from a first ATM device via an ATM interface, and then the first communication device sends a data frame including the ATM cell to the second ATM device via wide area Ethernet. In addition, the first communication device sends a synchronization frame to the second ATM device via the wide area Ethernet continuously at a predetermined time interval in accordance with a clock frequency of the first ATM device. A second communication device receives the synchronization frame and measures a clock frequency of the first ATM device in accordance with a time interval of receiving the synchronization frame so as to reproduce a clock having the same frequency as the measured clock frequency. After that, the second communication device sends the clock to the second ATM device via an ATM interface.Type: ApplicationFiled: April 25, 2005Publication date: May 25, 2006Applicant: FUJITSU LIMITEDInventors: Norihisa Uchimoto, Koji Tatsumi, Kazuhisa Shimazaki, Koichiro Yamada, Satoshi Namura, Akio Morimoto, Michio Kusayanagi
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Publication number: 20030223751Abstract: An optical transmission system according to the present invention is directed to achieving higher transmission quality by improving AWG transmission characteristics. An optical wavelength branching unit shifts a wavelength transmission band in the short-wavelength direction or the long-wavelength direction based on a branching filter operation temperature, and performs a branching operation on a wavelength-multiplexed signal. A reception transponder performs decoding on an error correction code. An error correction monitoring unit gathers an error correction amount. A branching filter temperature control unit sets the branching filter operation temperature based on the error correction amount. A transmission transponder performs encoding on an error correction code.Type: ApplicationFiled: February 25, 2003Publication date: December 4, 2003Applicant: Fujitsu LimitedInventors: Yoshihiro Shimizu, Makoto Takakuwa, Shoji Yoshida, Tooru Matsumoto, Akio Morimoto
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Patent number: 5619641Abstract: A failure detection system detects a failure of a package in a redundant system having a duplex package configuration.Type: GrantFiled: December 28, 1994Date of Patent: April 8, 1997Assignee: Fujitsu LimitedInventors: Noriaki Ohuchi, Akio Morimoto, Hiroshi Yamasaki, Takahiro Hosokawa, Hiroyuki Kaneko
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Patent number: 5430507Abstract: An ophthalmologic apparatus includes an optical system for illuminating a subject's eye, an optical system for observing the eye illuminated by the illumination optical system, an alignment detecting system for detecting the alignment of the observation optical system with the eye, and a switchover circuit for switching over a reference allowable range to another range. The observation optical system can observe the eye at at least two different magnifications. The alignment detecting system includes a sensor for receiving reflection light reflected by the eye, a circuit for setting a reference allowable range, an arithmetic circuit for processing a signal output by the sensor and detecting an alignment condition, and a judgment circuit for judging whether the alignment condition detected by the arithmetic circuit is within the reference allowable range set by the range setting circuit.Type: GrantFiled: November 26, 1993Date of Patent: July 4, 1995Assignee: Kabushiki Kaisha TopconInventors: Kouji Nishio, Akio Morimoto
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Patent number: 5420855Abstract: A multi-port time switch element for cross-connecting an n-channel multiplexed data includes m input ports for receiving m n-channel multiplexed data, a memory part for alternately writing and reading the n-channel multiplexed data, m selectors for writing and reading the n-channel multiplexed data so that each of the m selectors receives m.times.n data read from the memory part and selects one of the m.times.n data n times in an arbitrary sequence to output an n-channel multiplexed data, and m output ports for outputting the m n-channel multiplexed data read from the m selectors.Type: GrantFiled: January 21, 1994Date of Patent: May 30, 1995Assignee: Fujitsu LimitedInventors: Akio Morimoto, Hiroshi Nakaide
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Patent number: 5381194Abstract: An apparatus for photographing a corneal endothelium of a patient's eye according to the invention includes an optical system for observing the anterior segment of the eye to align optical systems of the apparatus with the eye; an illumination optical system for projecting each illumination light emitted by a light source for observation and a light source for photography onto the cornea of the eye; an endothelium observing and photographing optical system for receiving reflected light from the corneal endothelium and observing and photographing it, the observing and photographing optical system including a reflected light receiving element for aligning the optical systems of the apparatus in the back and forth directions with the eye; display means for displaying images of the anterior segment and the corneal endothelium separately from each other; and image switching means for switching a displayed image from the anterior segment to the corneal endothelium and vice versa.Type: GrantFiled: February 5, 1993Date of Patent: January 10, 1995Assignee: Kabushiki Kaisha TOPCONInventors: Kouji Nishio, Akio Morimoto
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Patent number: 5374967Abstract: This invention provides an ophthalmological image processing system which can avoid data errors when processing images by appending data to identify a subject's left and right eyes, and other photographic condition data. The system comprises an ophthalmological camera for electronically obtaining an image of a subject's eyes, inputting means for inputting photographic condition data, and processing means for linking a fundus image obtained by the ophthalmological camera to the photographic condition data input by the inputting means.Type: GrantFiled: August 12, 1993Date of Patent: December 20, 1994Assignee: Kabushiki Kaisha TopconInventors: Masayuki Hideshima, Toru Suzuki, Akio Sakurai, Yoshio Okazaki, Akio Morimoto
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Patent number: 5291231Abstract: This invention provides an ophthalmological image processing system which can avoid data errors when processing images by appending data to identify a subject's left and right eyes, and other photographic condition data. The system comprises an ophthalmological camera for electronically obtaining an image of a subject's eyes, inputting means for inputting photographic condition data, and processing means for linking a fundus image obtained by the ophthalmological camera to the photographic condition data input by the inputting means.Type: GrantFiled: November 27, 1991Date of Patent: March 1, 1994Assignee: Kabushiki Kaisha TopconInventors: Masayuki Hideshima, Toru Suzuki, Akio Sakurai, Yoshio Okazaki, Akio Morimoto
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Patent number: 5274677Abstract: A clock distribution system includes a clock generation and distribution part for generating a clock signal and distributing the generated clock signal to a plurality of destinations, slots in each of which a clock reception unit can be detachably mounted, and a plurality of transmission lines coupling the clock generation and distribution part to the slots. Each slot includes a circuit for generating a mount state signal which indicates whether or not the slot is mounted with a clock reception unit, and for supplying the mount state signal to the clock generation and distribution part via a transmission line. This mount state signal has a first state when no clock receiving unit is mounted in the slot and has a second state when a clock receiving unit is mounted in the slot.Type: GrantFiled: August 29, 1991Date of Patent: December 28, 1993Assignee: Fujitsu LimitedInventors: Noriaki Ohuchi, Akio Morimoto, Hiroshi Nakaide, Fumihiko Saito, Hiroyuki Kaneko
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Patent number: 4839208Abstract: An optical information recording medium according to the present invention is featured by its recording layer which contains a compound of tellurium (Te), selenium (Se) and nitrogen (N). The thickness of the recording layer 2 favorably ranges from about 100 angstroms (.ANG.) to about 1000 .ANG. and more favorably from 180 .ANG. to 400 .ANG.. The content of Se in the recording layer 2 favorably lies within a range from 2 to 40 atomic percent, more favorably from 10 to 30 atomic percent. The content of N is favorably to be from 2 to 20 atomic percent, and more favorably from 2 to 10 atomic percent.Type: GrantFiled: April 28, 1987Date of Patent: June 13, 1989Assignee: NEC CorporationInventors: Katsuji Nakagawa, Masaki Itoh, Akio Morimoto, Mitsuru Sakai
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Patent number: 4775568Abstract: An optical information storage medium comprising a transparent substrate and an information carrying layer positioned on one side of the substrate, wherein the information carrying layer contains at least 30 per cent by volume of tin and at least 15 per cent by volume of cobalt oxide. The information carrying layer may be formed directly on one surface of the substrate.Type: GrantFiled: November 26, 1986Date of Patent: October 4, 1988Assignee: NEC CorporationInventors: Masaki Itoh, Akio Morimoto