Patents by Inventor Kimio Tanaka
Kimio Tanaka 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: 10722206Abstract: An X-ray high voltage device according to an embodiment includes: an inverter circuit including a plurality of switching elements; acquiring circuitry configured to acquire information about an inverter current flowing through the inverter circuit; and controlling circuitry configured to determine, on the basis of the information about the inverter current, a first point in time at which the inverter current becomes substantially 0 and to exercise control by implementing zero current switching control on the switching elements at the first point in time and implementing zero voltage switching control on the switching elements at a second point in time excluding the first point in time.Type: GrantFiled: August 21, 2018Date of Patent: July 28, 2020Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventor: Kimio Tanaka
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Patent number: 10398403Abstract: A high voltage generation apparatus according to an embodiment includes power factor improvement circuitry and gain adjustment circuitry. The power factor improvement circuitry improves a power factor of alternating current (AC) power output from an AC power source in order to supply an X-ray tube with power that is controlled based on a reference voltage. The gain adjustment circuitry is included in the power factor improvement circuitry, and adjusts a gain of an output voltage relative to the reference voltage so that the gain differs between a first period including a start of irradiation of X-rays by the X-ray tube or an end of irradiation of X-rays by the X-ray tube, and a second period different from the first period.Type: GrantFiled: October 31, 2016Date of Patent: September 3, 2019Assignee: Canon Medical Systems CorporationInventor: Kimio Tanaka
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Publication number: 20190059844Abstract: An X-ray high voltage device according to an embodiment includes: an inverter circuit including a plurality of switching elements; acquiring circuitry configured to acquire information about an inverter current flowing through the inverter circuit; and controlling circuitry configured to determine, on the basis of the information about the inverter current, a first point in time at which the inverter current becomes substantially 0 and to exercise control by implementing zero current switching control on the switching elements at the first point in time and implementing zero voltage switching control on the switching elements at a second point in time excluding the first point in time.Type: ApplicationFiled: August 21, 2018Publication date: February 28, 2019Applicant: Canon Medical Systems CorporationInventor: Kimio TANAKA
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Publication number: 20190014989Abstract: Treatment with an acoustic catheter is disclosed. A photoacoustic catheter system includes an imaging laser beam generator that generates an imaging laser beam used for imaging; a treatment laser beam generator that generates a treatment laser beam used for treatment; a driver that provides driving to cause the imaging laser beam and the treatment laser beam to be emitted in a predetermined direction with respect to an advancing direction of a catheter; an acoustic element that receives an acoustic wave generated due to irradiation of the imaging laser beam; and a treatment laser beam controller, wherein the treatment laser beam controller synchronously emits the imaging laser beam and the treatment laser beam so as to be directionally aligned with each other.Type: ApplicationFiled: March 16, 2018Publication date: January 17, 2019Inventors: Tomohiko TANAKA, Taiichi TAKEZAKI, Ryo IMAI, Yoshiho SEO, Takahiro MATSUDA, Shinsuke ONOE, Takeshi SAKAMOTO, Kimio TANAKA, Ryo KAWAMURA, Yoshiyuki SEYA, Yutaka WATANABE
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Publication number: 20170209114Abstract: A high voltage generation apparatus according to an embodiment includes power factor improvement circuitry and gain adjustment circuitry. The power factor improvement circuitry improves a power factor of alternating current (AC) power output from an AC power source in order to supply an X-ray tube with power that is controlled based on a reference voltage. The gain adjustment circuitry is included in the power factor improvement circuitry, and adjusts a gain of an output voltage relative to the reference voltage so that the gain differs between a first period including a start of irradiation of X-rays by the X-ray tube or an end of irradiation of X-rays by the X-ray tube, and a second period different from the first period.Type: ApplicationFiled: October 31, 2016Publication date: July 27, 2017Applicant: Toshiba Medical Systems CorporationInventor: Kimio TANAKA
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Patent number: 6691130Abstract: A browsing data creation system of an information searching apparatus includes a data storage for storing plural kinds of data that are to be searched for. Each of the data having a data format corresponding to the kind of data that is is. Instructions can be input into the information searching apparatus and browsing data can be created from the data stored in the data storage according to a data format input into the information searching apparatus. Data that is to be searched for has a time based access and is divided into page units. An instruction is input to the information searching apparatus to search in page units.Type: GrantFiled: October 3, 2001Date of Patent: February 10, 2004Assignee: Hitachi, Ltd.Inventors: Kenji Kawasaki, Tetsuo Tanaka, Yoshiaki Morimoto, Kunihisa Nitta, Kimio Tanaka
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Publication number: 20020026454Abstract: Browsing data in the format selected by a user can be created by using the existing art. Video and audio can be browsed by designating only the portion to be browsed.Type: ApplicationFiled: October 3, 2001Publication date: February 28, 2002Applicant: Hitachi, Ltd.Inventors: Kenji Kawasaki, Tetsuo Tanaka, Yoshiaki Morimoto, Kunihisa Nitta, Kimio Tanaka
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Patent number: 6332145Abstract: A browsing data creation system of an information searching apparatus includes a data storage for storing plural kinds of data that are to be searched for. Each of the data having a data format corresponding to the kind of data that it is. Instructions can be input into the information searching apparatus and browsing data can be created from the data stored in the data storage according to a data format input into the information searching apparatus. Data that is to be searched for has a time based access and is divided into page units. An instruction is input to the information searching apparatus to search in page units.Type: GrantFiled: September 13, 1999Date of Patent: December 18, 2001Assignee: Hitachi, Ltd.Inventors: Kenji Kawasaki, Tetsuo Tanaka, Yoshiaki Morimoto, Kunihisa Nitta, Kimio Tanaka
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Patent number: 6048595Abstract: The present invention provides a superior light-storing printed article, which includes a light-storing printed layer comprising 50-80 wt % of light-storing pigment having D50=22-35 .mu.m and D90=58-80 .mu.m based on the total amount of the light-storing pigment and the binder, and the thickness of the printed layer being 50-150 .mu.m.Type: GrantFiled: May 21, 1997Date of Patent: April 11, 2000Assignee: TDK CorporationInventors: Hiroyuki Nakajima, Kimio Tanaka, Shuji Higashi, Tatsuo Fujii
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Patent number: 6009438Abstract: Browsing data in the format selected by a user can be created by using the existing art. Video and audio can be browsed by designating only the portion to be browsed. A system for creating a compound document is used so as to create browsing data from application data. When audio data and videa data are played, a concept of a virtual page is introduced so that they can be browsed in page units.Type: GrantFiled: January 26, 1996Date of Patent: December 28, 1999Assignee: Hitachi, Ltd.Inventors: Kenji Kawasaki, Tetsuo Tanaka, Yoshiaki Morimoto, Kunihisa Nitta, Kimio Tanaka
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Patent number: 5552101Abstract: A method for making plastic case blanks is disclosed. A molten plastic material is passed through a nip of a first, preforming pair of molding cylinders to form a semi-solidified sheet having a first thickness, The semi-solidified sheet is then molded to form a final sheet having a second, uniform thickness less than the first thickness and the final sheet is scored to form folding scores and cut to form a plurality of the blanks. The molding, scoring and cutting are simultaneously performed by passing the semi-solidified sheet through a nip of a second pair of cylinders. One of the second pair of cylinders has scoring means for forming the folding scores in the final sheet and cutting means for cutting the final sheet to form the plurality of the blanks and the other of the second pair of cylinders has recess means complementary to the cutting means for receiving the cutting means and effectuating the cutting.Type: GrantFiled: May 30, 1995Date of Patent: September 3, 1996Assignee: TDK CorporationInventors: Tatsuo Fujii, Kimio Tanaka
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Patent number: 5422697Abstract: An aperture device for use in an optical apparatus has a plurality of aperture blades which cooperate in collectively defining an aperture of a desired size. The inner edge of at least one of such blades defining one side of the aperture is uneven over at least part of the length of the inner edge. The spacing between adjacent relatively high portions and relatively low portions, as well as the depth, is smaller than the exposed length of the inner edge of each aperture blade when the aperture device has been operated to the minimum aperture size. Preferably, the spacing between adjacent crests or between adjacent high portions and low portions of the unevenness varies in a non-periodic manner.Type: GrantFiled: March 30, 1993Date of Patent: June 6, 1995Assignee: Canon Kabushiki KaishaInventors: Mitsuru Ichinomiya, Kimio Tanaka, Toshinori Higaki, Shigeru Oshima
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Patent number: 5405008Abstract: In making a plastic case from a molten plastic material, a molten sheet of the material is passed through a nip of a pair of molding cylinders to form a sheet of desired thickness which in turn cut into blanks. A half tone indication is formed by using a cylinder having an indication-forming part which is comprised of a mat surface and a number of elongated projections having a glossy top surface. Half tone is obtained by this simple process.Type: GrantFiled: July 1, 1993Date of Patent: April 11, 1995Assignee: TDK CorporationInventors: Kimio Tanaka, Noboru Uemura, Koji Sasagawa
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Patent number: 5268807Abstract: A tape cassette having a head-receiving housing region provided with an independent guide block which contains a plurality of tape guides, further comprises a pair of thick spacer plate members disposed, respectively, between the guide block and the upper and lower half housing sections of the cassette. The spacer plate members are made of a material suitably chosen from among metals, metal-plastics composites, carbon fibers, glass fibers, composite reinforced plastics containing mica or other reinforcements, and the like. They have a plurality of irregularly shaped apertures or positioning apertures each which receive posts formed in one piece with the upper and lower half housing sections of the cassette and are fixed in position with the posts by caulking. The guide block has portions with which to press the thick spacer plate members securely against the respective half housing sections of the cassette.Type: GrantFiled: May 28, 1991Date of Patent: December 7, 1993Assignee: TDK CorporationInventors: Kimio Tanaka, Shinichi Sato
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Patent number: 5249269Abstract: A communication network system comprising a communication line network, a plurality of terminals connected to the communication line network, and a fuzzy control unit for allocating a right to access the communication network according to a fuzzy deduction process taking into account an operating condition of the system. This communication network system may consist of a local area network involving a polling process or a token passing process, a computer terminals systems, or a telephone exchange system. By using a fuzzy control process, an efficient utilization of available resources is made possible by taking into account operating conditions of the network as a whole, or each of the terminals.Type: GrantFiled: May 21, 1990Date of Patent: September 28, 1993Assignee: Omron CorporationInventors: Toshiro Nakao, Kenji Mino, Kimio Tanaka, Masatsune Kohsaka
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Patent number: 5180118Abstract: A magnetic tape cassette housing is divided into a major part and a rear frame member attached to the rear end of the major part. The major part is divided into a pair of side frame members which are formed of a material of low friction coefficient and a main body surrounded and held together by the side frame members and rear frame member. The housing is of double-layer structure consisting of inside and outside layers. The inside layers are formed with steps along the edges of the side frame members and the rear frame member, and the outside layers are so formed as to fall onto the steps and extend inwardly of the edges of the side frame members. The main body and side frame members are formed with mutually engageable, temporary fasteners. The outer surface of the outside layer is satin crape finished and at least the interface between the inside and outside layers mirror finished.Type: GrantFiled: February 20, 1990Date of Patent: January 19, 1993Assignee: TDK CorporationInventors: Kimio Tanaka, Shinichi Sato, Takateru Satoh, Haruo Shiba
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Patent number: 5168998Abstract: A casing for receiving a magnetic tape cassette comprises a transparent or semi-transparent casing main body 1 adapted to receive therein a magnetic tape cassette and a cover 3 pivotally supported by the casing main body by way of hinges 2, wherein a rib 10 for restricting the movement of the magnetic tape cassette in the direction of thickness of the casing main body 1 and a rib 9 for restricting the movement of the cassette in the longer side direction of the casing main body 1 are formed in the inner wall at a corner portion of the cover member.Type: GrantFiled: November 22, 1991Date of Patent: December 8, 1992Assignee: TDK CorporationInventors: Takateru Satoh, Tatsuo Fujii, Haruo Shiba, Kimio Tanaka, Noboru Uemura
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Patent number: 5153799Abstract: A magnetic tape cassette has in the front portion of the housing two pairs of fixed tape guide ribs protruding the same length frontwardly of the housing to define a guide path for the magnetic tape and also protruding so as to form linear front edges of a height greater than the width of the tape, the fixed tape guide ribs in at least one pair being formed adjacent to each other, with the upper and lower ends of the protruding front edges being integrally joined by bridges of the same material. The bridges are formed to have a given, constant width and a given, constant height upwardly and downwardly.Type: GrantFiled: August 9, 1991Date of Patent: October 6, 1992Assignee: TDK CorporationInventors: Kimio Tanaka, Shinichi Sato, Takateru Sato
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Patent number: 5121278Abstract: A disc cartridge capable of preventing a recording surface section of a disc from being contacted with an inner surface of a casing so that the disc may be free from any damage. The disc cartridge includes steps or sheet-like members provided on the inner surface of the casing in a manner to be inwardly projected from the inner surface. The steps or sheet-like members are positioned so as to be engaged with a non-recording surface section of the disc to support the disc thereon, so that a clearance may be defined between the recording surface section of the disc and the inner surface of the casing.Type: GrantFiled: July 18, 1991Date of Patent: June 9, 1992Assignee: TDK CorporationInventors: Kimio Tanaka, Haruo Shiba
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Patent number: 5082197Abstract: A tape cassette is provided which is so constructed that a plurality of weighting members are fittedly held in fitting apertures or recesses of a casing formed at corners of the casing in a detachable manner while being exposed at part thereof on a surface of the casing. Such construction of the cassette not only permits the cassette to exhibit optimum vibration-damping properties to ensure satisfactory recording and reproducing of the cassette and contributes an improvement in mechanical strength of the cassette but provides the cassette with a variation in design sufficient to exhibit good aesthetic properties, to thereby increase a merchandise value of the cassette.Type: GrantFiled: July 3, 1989Date of Patent: January 21, 1992Assignee: TDK CorporationInventors: Takateru Satoh, Kimio Tanaka, Haruo Shiba, Noboru Uemura, Kenkichi Akaoka