Patents by Inventor Takayuki Takahata

Takayuki Takahata 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).

  • Patent number: 7028533
    Abstract: Measurements are obtained by a computing unit based on an output Vh from an indirectly-heated constant-temperature controlling flow rate measuring section (16) and an output Vout from a two-constant-point temperature difference detecting flow rate measuring sections (18a, 18b). In the flow rate measuring section (16), a heating element (163) is feedback-controlled based on a detected temperature by a heat sensing element (162) to obtain an output Vh based on the feedback-controlled condition. An output Vout is obtained from flow rate measuring sections (18a, 18b) based on the detected temperature difference between a heat sensing element (182) disposed on the liquid-flow-direction upstream side of the flow rate measuring section (16) and a temperature sensing element disposed on the downstream side.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: April 18, 2006
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Atsushi Koike, Toshiaki Kawanishi, Toshimi Nakamura, Takayuki Takahata, Kiyoshi Yamagishi
  • Publication number: 20060042940
    Abstract: It is an object to provide an alcohol concentration detecting apparatus which is small-sized and compact, can be installed everywhere and can have the degree of freedom of a design, has an excellent insulation between electrodes and is not influenced by a moisture, can carry out shielding in order not to be influenced by an electromagnetic wave generated from a body of a car or the like, and furthermore, can execute an accurate measurement for an alcohol concentration. Furthermore, it is an object to provide an alcohol concentration detecting method using the same apparatus, and an alcohol concentration detecting sensor manufacturing method.
    Type: Application
    Filed: September 30, 2003
    Publication date: March 2, 2006
    Inventors: Toshiaki Kawanishi, Kiyoshi Yamagishi, Takayuki Takahata
  • Publication number: 20060026949
    Abstract: The concentration of the urea of a urea solution is identified accurately and immediately. A pulse voltage is applied for a predetermined time to a urea concentration identifying sensor heater including a heater and an identifying liquid temperature sensor provided in the vicinity of the heater, a urea solution to be identified is heated by the heater, and the concentration of the urea is identified with a voltage output difference V0 corresponding to a temperature difference between an initial temperature and a peak temperature in the identifying liquid temperature sensor.
    Type: Application
    Filed: September 10, 2003
    Publication date: February 9, 2006
    Inventors: Takayuki Takahata, Toshiaki Kawanishi, Kiyoshi Yamagishi
  • Publication number: 20060011170
    Abstract: The types of gasolines having different distillation characteristics and various compositions are identified accurately and rapidly. A pulse voltage is applied for a predetermined time to a liquid type identifying sensor heater including a heater and an identifying liquid temperature sensor provided in the vicinity of the heater. Then, a gasoline to be identified is heated by the heater, and a liquid type is identified with a voltage output difference V0 corresponding to a temperature difference between an initial temperature and a peak temperature in the identifying liquid temperature sensor.
    Type: Application
    Filed: September 10, 2003
    Publication date: January 19, 2006
    Inventors: Takayuki Takahata, Toshiaki Kawanishi, Kiyoshi Yamagishi
  • Publication number: 20060005620
    Abstract: Measurements are obtained by a computing unit based on an output Vh from an indirectly-heated constant-temperature controlling flow rate measuring section (16) and an output Vout from a two-constant-point temperature difference detecting flow rate measuring sections (18a, 18b). In the flow rate measuring section (16), a heating element (163) is feedback-controlled based on a detected temperature by a heat sensing element (162) to obtain an output Vh based on the feedback-controlled condition. An output Vout is obtained from flow rate measuring sections (18a, 18b) based on the detected temperature difference between a heat sensing element (182) disposed on the liquid-flow-direction upstream side of the flow-rate measuring section (16) and a temperature sensing element disposed on the downstream side.
    Type: Application
    Filed: August 5, 2005
    Publication date: January 12, 2006
    Inventors: Atsushi Koike, Toshiaki Kawanishi, Toshimi Nakamura, Takayuki Takahata, Kiyoshi Yamagishi
  • Patent number: 6973827
    Abstract: Measurements are obtained by a computing unit based on an output Vh from an indirectly-heated constant-temperature controlling flow rate measuring section (16) and an output Vout from a two-constant-point temperature difference detecting flow rate measuring sections (18a, 18b). In the flow rate measuring section (16), a heating element (163) is feedback-controlled based on a detected temperature by a heat sensing element (162) to obtain an output Vh based on the feedback-controlled condition. An output Vout is obtained from flow rate measuring sections (18a, 18b) based on the detected temperature difference between a heat sensing element (182) disposed on the liquid-flow-direction upstream side of the flow rate measuring section (16) and a temperature sensing element disposed on the downstream side.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: December 13, 2005
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Atsushi Koike, Toshiaki Kawanishi, Toshimi Nakamura, Takayuki Takahata, Kiyoshi Yamagishi
  • Publication number: 20050261842
    Abstract: A flowmeter for achieving a fluid flow rate value by using calibration curves on the basis of the output of a detection circuit using a bridge circuit (73) containing as constituent resistors respective temperature sensing elements of a flow rate detector containing a heating element (33) and a fluid temperature detector in an indirectly heated type flow rate sensor unit. The bridge circuit (73) varies the circuit characteristic value in plural steps by a multiplexer (731) for selectively connecting the output terminal and any one of the connection terminals between the in-series connected resistors. Plural calibration curves are provided in association with the steps of the circuit characteristic value, and any one of the plural calibration curves is selected in accordance with the step of the circuit characteristic value selected by the multiplexer (731).
    Type: Application
    Filed: July 28, 2005
    Publication date: November 24, 2005
    Inventors: Kiyoshi Yamagishi, Atsushi Koike, Takayuki Takahata, Hiromitsu Miyajima, Shinya Furuki
  • Publication number: 20050170353
    Abstract: To provide a gene examination method for predicting the onset risk of glaucoma based on the relation between a glaucoma-associated gene and the onset of glaucoma, the onset of glaucoma in future is predicted by using as an indication mutations in the gene region involving the code region and/or the upstream region of a glaucoma-associated gene. In the base sequence represented by SEQ ID NO:1, mutation(s) in at least one of the following positions are detected, i.e., the 194-, 199-, 324-, 1051-, 1084-, 1627-, 1685-, 1756-, 1853-, 2830-, 3371-, 4037- and 4364-positions.
    Type: Application
    Filed: March 19, 2003
    Publication date: August 4, 2005
    Applicant: SYSMEX CORPORATION
    Inventors: Kaoru Asano, Takayuki Takahata, Shigehiro Numada, Akinori Masago, Yasuhiro Kouchi
  • Patent number: 6920778
    Abstract: A device placed in a tank and used for detecting a leakage of liquid in the tank. Vertical measurement tube passages (10, 14) into which the liquid in the tank is introduced have a measurement tube (10) and a measurement thin tube (14). The measurement thin tube (14) communicates with the measurement tube and is located lower than the measurement tube. The measurement thin tube has a cross-sectional area that is equal to or smaller than {fraction (1/50)} of that of the measurement tube. A thermal flow sensor (16) used for measuring a liquid flow rate is attached to the measurement thin tube (14). There is provided leakage detecting means (22) for detecting a leakage of liquid in the tank according to the flow rate value measured by the sensor. The leakage detecting means generates a leakage detection signal when a flow rate value measured by the sensor is within a range greater than 0 and smaller than the flow rate value obtained when liquid is added to the tank or when the liquid in the tank is taken out.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: July 26, 2005
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Atsushi Koike, Kiyoshi Yamagishi, Takayuki Takahata, Toshimi Nakamura, Toshiaki Kawanishi
  • Publication number: 20050155421
    Abstract: Measurements are obtained by a computing unit based on an output Vh from an indirectly-heated constant-temperature controlling flow rate measuring section (16) and an output Vout from a two-constant-point temperature difference detecting flow rate measuring sections (18a, 18b). In the flow rate measuring section (16), a heating element (163) is feedback-controlled based on a detected temperature by a heat sensing element (162) to obtain an output Vh based on the feedback-controlled condition. An output Vout is obtained from flow rate measuring sections (18a, 18b) based on the detected temperature difference between a heat sensing element (182) disposed on the liquid-flow-direction upstream side of the flow rate measuring section (16) and a temperature sensing element disposed on the downstream side.
    Type: Application
    Filed: March 18, 2003
    Publication date: July 21, 2005
    Inventors: Atsushi Koike, Toshiaki Kawanishi, Toshimi Nakamura, Takayuki Takahata, Kiyoshi Yamagishi
  • Publication number: 20050011253
    Abstract: A device placed in a tank and used for detecting a leakage of liquid in the tank. Vertical measurement tube passages (10, 14) into which the liquid in the tank is introduced have a measurement tube (10) and a measurement thin tube (14). The measurement thin tube (14) communicates with the measurement tube and is located lower than the measurement tube. The measurement thin tube has a cross-sectional area that is equal to or smaller than {fraction (1/50)} of that of the measurement tube. A thermal flow sensor (16) used for measuring a liquid flow rate is attached to the measurement thin tube (14). There is provided leakage detecting means (22) for detecting a leakage of liquid in the tank according to the flow rate value measured by the sensor. The leakage detecting means generates a leakage detection signal when a flow rate value measured by the sensor is within a range greater than 0 and smaller than the flow rate value obtained when liquid is added to the tank or when the liquid in the tank is taken out.
    Type: Application
    Filed: December 13, 2002
    Publication date: January 20, 2005
    Inventors: Atsushi Koike, Kiyoshi Yamagishi, Takayuki Takahata, Toshimi Nakamura, Toshiaki Kawanishi
  • Publication number: 20040091914
    Abstract: Future onset of glaucoma is predicted using as a marker, mutation of base(s) in a coding region of a glaucoma-related gene(OPTN gene).
    Type: Application
    Filed: July 28, 2003
    Publication date: May 13, 2004
    Applicant: SYSMEX CORPORATION
    Inventors: Yasuhiro Kouchi, Akinori Masago, Takayuki Takahata
  • Patent number: 6672154
    Abstract: A flow rate detector (5) including a heater and a temperature sensor is connected to a thermal conductor (6), and a fluid temperature detector (9) including a temperature sensor is connected to a thermal conductor (10). A housing (2) encloses the flow rate detector (5), the fluid temperature detector (9) and parts of thermal conductors (6, 10). The housing (2) also encloses a memory (1) that stores individual information of a flow rate sensor unit used for determining flow rates by using signals from a detector circuit containing the heater, the temperature sensor of the flow rate detector and the temperature sensor of the fluid temperature detector. The flow rate detector (5), the fluid temperature detector (9) and the memory (1) are connected to a plurality of leads (4) in the housing (2). The housing (2) is connected to a fluid channel (13), into which the thermal conductors (6, 10) extended. The flow rate sensor unit reduces the difference in measurment between the different sensor units.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: January 6, 2004
    Inventors: Kiyoshi Yamagishi, Kenji Tomonari, Shinichi Inoue, Takayuki Takahata
  • Patent number: 6604417
    Abstract: A strainer integrated flowmeter 210 is constituted by a strainer section 203 provided with a housing 202 having a flow passage 207 formed therein, a filter member 209 and a filter member insertion cylinder 210; and a flowmeter section 204 provided with a housing 202 having a flow passage 208 formed therein and a flow rate sensor 226. The housings 202 of both the strainer section 203 and flowmeter section 204 are integrated, and the flowmeter section 204 is disposed at downstream side. A vent hole 215 is formed in the housing 202 so as to be in communication with the flow passage 207.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: August 12, 2003
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Atsushi Koike, Kiyoshi Yamagishi, Kenichi Hiraizumi, Takayuki Takahata