Patents by Inventor Toru Akiyama
Toru Akiyama 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: 9612141Abstract: The present invention relates to flow measurement, and more particularly, to a system for measuring a flow rate by three-dimensionally crossing a plurality of sidings each other within a conduit. An ultrasonic flow measurement system according to the present invention determines a flow central part of fluid by three-dimensionally crossing the plurality of sidings each other within the conduit in three dimensions and calculates a flow rate flowing in the conduit, meeting the flow central part, thereby more accurately measuring the flow rate than the existing method.Type: GrantFiled: April 14, 2014Date of Patent: April 4, 2017Assignees: Woojin Inc., Sonic CorporationInventors: Kye Hyeon Ryu, Hee June Park, Hyun Myoung Shin, Toru Akiyama, Kunihiro Takahashi, Noriaki Saito, Kazuo Takemura
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Publication number: 20160033312Abstract: The present invention relates to flow measurement, and more particularly, to a system for measuring a flow rate by three-dimensionally crossing a plurality of sidings each other within a conduit. An ultrasonic flow measurement system according to the present invention determines a flow central part of fluid by three-dimensionally crossing the plurality of sidings each other within the conduit in three dimensions and calculates a flow rate flowing in the conduit, meeting the flow central part, thereby more accurately measuring the flow rate than the existing method.Type: ApplicationFiled: April 14, 2014Publication date: February 4, 2016Inventors: Kye Hyeon RYU, Hee June PARK, Hyun Myoung SHIN, Toru AKIYAMA, Kunihiro TAKAHASHI, Noriaki SAITO, Kazuo TAKEMURA
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Patent number: 8808143Abstract: There is provided an output control device for a vehicle. The device includes an accelerator operator to receive an output adjustment operation of a drive power of a vehicle; a brake operator to receive a braking operation of a braking device; an accelerator operation amount detection unit for detecting an operation amount of the accelerator operator; a brake operation force estimation unit for estimating an operation force of the brake operator; and an output suppression control unit for suppressing an output of the drive power regardless of a state of the accelerator operator, in the case where for a predetermined time or longer, a state continues in which the operation amount of the accelerator operator is greater than or equal to a predetermined accelerator threshold value, and the operation force estimated by the brake operator is greater than or equal to a predetermined brake threshold value.Type: GrantFiled: November 2, 2012Date of Patent: August 19, 2014Assignee: Fuji Jukogyo Kabushiki KaishaInventors: Katsuya Tomiie, Kazuhiro Oishi, Masahito Motoi, Toru Akiyama, Takayuki Shimizu
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Publication number: 20100007666Abstract: An object is to provide a display method and device for displaying an information code, in which an information code can be displayed on a display without affecting the image being displayed. A one subfield among N subfields is used as a subfield for displaying an information code as a two-dimensional code, and the other subfields are used as subfields for displaying a primary image, in a process in which intermediate brightness is displayed using the N subfields for each unit display interval.Type: ApplicationFiled: March 27, 2007Publication date: January 14, 2010Inventors: Manabu Nohara, Toru Akiyama, Takayuki Akimoto, Tomoaki Iwai, Yusuke Soga
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Publication number: 20090249691Abstract: Apparatus for gasifying a solid fuel that supplies a solid fuel such as coal by dry condition to a gasification furnace of an entrained-bed type is constructed so as to be able to collect the char discharged from the gasification furnace and re-supply the char to the furnace without using a lock hopper and without changing the char into slurry form. The char discharged from the gasification furnace along with produced gases 53 produced in the gasification furnace is brought into contact with water by a gas cooler 9 and collected. After being dehydrated by a dehydrator 10, the collected char is loaded into a mill 2 or a raw-coal bunker 1. For loading into the raw-coal bunker 1, the char is dried by a drying machine 14, preferably, after the dehydration. According to the present invention, a mixture of the collected char and water can be re-supplied to the gasification furnace without using a lock hopper or a dry feeder.Type: ApplicationFiled: February 1, 2006Publication date: October 8, 2009Applicants: HITACHI, LTD., ELECTRIC POWER DEVELOPMENT CO., LTD., BARCOCK-HITACHI K.K.Inventors: Toru Akiyama, Fumihiko Kiso, Shinji Tanaka, Hirofumi Okazaki, Fumihiko Hanayama, Kazunori Sato, Takahiro Nishida, Hiroshi Takezaki, Akio Ueda, Makoto Takeda
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Publication number: 20040238350Abstract: The present invention provides ion exchangers for an electrical deionization apparatus that can be operated at low voltages by preventing voltage buildup in the electrical deionization apparatus, and an electrical deionization apparatus incorporating said ion exchangers. The present invention provides an ion exchanger for an electrical deionization apparatus, which is to be used as an ion exchanger placed in at least one of a deionization compartment and/or concentration compartment and, which at least partially has a plurality of different functional groups, or which has a graft chain having an ion exchange group on the backbone of an organic polymer substrate and further has a second graft chain on said graft chain, or which has a crosslinked graft chain having an ion exchange group on the backbone of an organic polymer substrate.Type: ApplicationFiled: January 27, 2004Publication date: December 2, 2004Inventors: Yohei Takahashi, Kunio Fujiwara, Takayoshi Kawamoto, Syu Nakanishi, Toru Akiyama
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Publication number: 20040188258Abstract: The object of the present invention is to provide an electrical deionization apparatus capable of long-term operation at a low voltage. To achieve this object, the present invention is directed to an electrical deionization apparatus based on a completely new compartment configuration and provides an electrical deionization apparatus comprising multiple compartments separated by cation- and anion-exchange membranes arranged between anode and cathode, wherein the anion-exchange membrane on the anode side and the cation-exchange membrane on the cathode side together define a water splitting compartment, and wherein an anion deionization compartment defined between anion-exchange membranes is placed on the anode side of the water splitting compartment, and a cation deionization compartment defined between cation-exchange membranes is placed on the cathode side of the water splitting compartment.Type: ApplicationFiled: January 21, 2004Publication date: September 30, 2004Inventors: Yohei Takahashi, Kunio Fujiwara, Takayoshi Kawamoto, Syu Nakanishi, Toru Akiyama, Masaji Akahori, Jun Aoyama
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Patent number: 6567490Abstract: A pulse delay circuit includes a delay circuit, a plurality of selectors and a plurality of synchronous circuits. The delay circuit includes a plurality of series connected delay elements for delaying a clock signal and generating a plurality of delay clock signals. Each of the selectors is connected to the plurality of delay elements and selects one of the plurality of the delay clock signals in accordance with an associated selection signal. The plurality of synchronous circuits receive pulse signals and the selected delay clock signals and generating a plurality of synchronous pulse signals that are synchronized with the selected delay clock signals, respectively.Type: GrantFiled: March 19, 1999Date of Patent: May 20, 2003Assignee: Sanyo Electric Co., Ltd.Inventors: Koji Hayashi, Toru Akiyama
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Patent number: 6493305Abstract: A pulse width control circuit is used to control the pulse with of a modulation signal to be written to a recording medium, such as a CD-R. The circuit controls both the leading and trailing edges of the modulation signal. The circuit includes a first delay circuit including multiple series connected first inverters for delaying the modulation signal and generating multiple first delay signals. The first delay signals are input to a first selector, which selects one of the first delay signals. A first logic circuit receives the selected first delay signal and the modulation signal and performs a first logic operation. The output of the first logic circuit is input to a second delay circuit, which includes multiple series connected second inverters for delaying the first logic circuit output signal, and generating multiple second delay signals. A second selector selects one of the plurality of delayed logic signals in accordance with the second selection signal.Type: GrantFiled: March 22, 1999Date of Patent: December 10, 2002Assignee: Sanyo Electric Co., Ltd.Inventors: Koji Hayashi, Toru Akiyama
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Patent number: 6423205Abstract: The object of this invention is to provide an electrical deionization apparatus with which various feed water types ranging from water of high ion concentration to water of low ion concentration can be consistently deionized with high efficiency. At least part of cation-exchange membranes and anion-exchange membranes alternate between electrodes to form an alternating array of deionization and concentration compartments and the deionization compartment contains a woven or non-woven fabric made of cation-exchange fiber that is placed on the cation-exchange membrane side in a face-to-face relationship with a woven or non-woven fabric made of anion-exchange fiber that is placed on the anion-exchange membrane side, with the passageway of feed water between the two woven or non-woven fabrics containing an ion-conducting spacer provided with an ion-exchanging capability.Type: GrantFiled: October 27, 2000Date of Patent: July 23, 2002Assignee: Ebara CorporationInventors: Masaji Akahori, Takayoshi Kawamoto, Syu Nakanishi, Shinzi Miura, Toru Akiyama, Takayuki Saito, Kunio Fujiwara, Satoshi Konishi
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Patent number: 6417643Abstract: A synchronous control device according to the present invention completes an origin matching between a master section and a slave section without causing a phase difference even when a deceleration device is employed in the master section or in the slave section so as to perform an accurate synchronous control. The synchronous control device constantly detects the phase of a shaft of a master electric motor by a phase detector of the master electric motor according to the outputs of a master rotary encoder, and the phase of a shaft of the master machine by a phase detector of the shaft of the master machine according to the outputs of a master rotary encoder and an origin detector of the shaft of the master machine.Type: GrantFiled: April 20, 2001Date of Patent: July 9, 2002Assignee: Kabushiki Kaisya Tokyo Kikai SeisakushoInventors: Noriyuki Shiba, Toru Akiyama, Masakatsu Fujita, Hiroyuki Hisada, Ikuo Kotani
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Patent number: 5481369Abstract: A crosstalk detector for detecting the crosstalk of signals optically read from a recording medium having a plurality of tracks. A changeover circuit selects one of first and second signals generated by first and second oscillators. The amplitude of a signal of a predetermined center frequency is extracted from the selected signal and RF signal and that amplitude is compared with a control signal that inverts at every horizontal synchronizing period of a video signal demodulated from the RF signal.Type: GrantFiled: February 17, 1994Date of Patent: January 2, 1996Assignee: Pioneer Electronic CorporationInventor: Toru Akiyama
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Patent number: 5420847Abstract: A plurality of tracks are spirally arranged in a group on an optical disc. The tracks in the group are simultaneously radiated by laser beams. Adjacent tracks in the group are disposed at a radial distance d1, and adjacent spots of the laser beams on the tracks are disposed at a radial distance ds which is smaller than the distance d1.Type: GrantFiled: June 1, 1993Date of Patent: May 30, 1995Assignee: Pioneer Electronic CorporationInventors: Takanori Maeda, Toru Akiyama, Fumitaka Kotaka, Noriaki Murao
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Patent number: 5355938Abstract: A temperature control device with high accuracy and stability comprising a heating device and a cooling device which are controlled by separate control circuits for performing proportional control, integral control, derivative control and the like. A ratio of energy supply periods to predetermined control periods is thereby varied, on the basis of a controlled variable calculated from direction, size, change velocity and the like of deviation of actual temperature of a controlled medium from desired set temperature so as to control heating and cooling energy supplies for the heating and cooling devices. The heating energy and cooling energy supplies for the heating and cooling devices can be separately controlled by means of different proportional bands.Type: GrantFiled: November 27, 1992Date of Patent: October 18, 1994Assignee: Toshiba Machine Co., Ltd.Inventors: Tsutomu Hosoya, Katsuhiro Inaba, Toru Akiyama, Shigeru Fujita
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Patent number: 5321519Abstract: A crosstalk detector for detecting the crosstalk of signals optically read from a recording medium having a plurality of tracks. The read signal levels between adjacent tracks at the positions where crosstalk detecting signals are recorded are compared and used to calculate a quantity of crosstalk of the read signals.Type: GrantFiled: April 13, 1993Date of Patent: June 14, 1994Assignee: Pioneer Electronic CorporationInventor: Toru Akiyama
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Patent number: 5283659Abstract: An apparatus in which a high vision signal having 1125 horizontal lines per frame is divided into three signals and three channel signals each having 375 horizontal lines per frame are obtained wherein the resultant three channel signals are time base expanded, three channel signals in a base band of 10 MHz are obtained, and the three channel signals are independently recorded onto a medium. A recording medium on which signals is recorded and processed by the above apparatus is provided.Type: GrantFiled: April 17, 1991Date of Patent: February 1, 1994Assignee: Pioneer Electronic CorporationInventors: Toru Akiyama, Yoshiyuki Okuda, Akihiro Tozaki, Motooki Sugihara
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Patent number: 5251042Abstract: A component video signal transmitting apparatus for suppressing any adverse affects caused by noises which are mixed with FM signals which are transmitted after component video signals are frequency modulated. After the color difference signals in the component video signals are previously expanded in level in a high level region, they are frequency modulated and transmitted. The high level expanded color difference signals extracted by demodulation of the transmitted signals are compressed in level at the high level region.Type: GrantFiled: May 6, 1992Date of Patent: October 5, 1993Assignee: Pioneer Electronic CorporationInventor: Toru Akiyama
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Patent number: 5204744Abstract: A frame number and an instruction signal are inserted in each frame in a video signal. The instruction signal is selected from a predetermined number of field combination instructing signals in each frame, each of the signals represents a combination mode of two fields in the frame. The frame number and the field combination instructing signal are detected. In response to a still signal, a detected frame number and a picture in two fields instructed by a detected field combination instructing signal are stored in a memory for reproducing the picture.Type: GrantFiled: January 7, 1991Date of Patent: April 20, 1993Assignee: Pioneer Electronic CorporationInventor: Toru Akiyama
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Patent number: 5166805Abstract: In a disk player that provides a fast scanning mode in which only selected tracks are tracked by a playback head under closed loop control, a circuit for eliminating the image signal when adjacent tracks have uncorrelated images and the head is under open loop control.Type: GrantFiled: February 23, 1990Date of Patent: November 24, 1992Assignee: Pioneer Electronic CorporationInventor: Toru Akiyama
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Patent number: 4928166Abstract: An apparatus for suppressing noises in a color video signal is constructed to extract a frequency band component of the color video signal, to limit the amplitude of the extracted frequency band component, and to subtract the component, which is limited in amplitude, from the color video signal. Thus, a beat component such as a beat component generated by the interference between the main carrier signal and the color carrier signal of a recording video signal is removed from a video signal obtained after demodulation.Type: GrantFiled: July 5, 1988Date of Patent: May 22, 1990Assignee: Pioneer Electronic CorporationInventor: Toru Akiyama