Patents by Inventor Kei Takenaka

Kei Takenaka 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: 20220205448
    Abstract: A suction port and a blow-out port are formed in a casing. A fan is provided in the casing. Under a test condition that a blower is provided in such a way that a reference position of the blow-out port is a position that is separated by 2000 mm upward from a floor, an airflow adjusting mechanism adjusts, in a wide mode, a flow of air blown out from the blow-out port so that an average airflow speed in a first range and an average airflow speed in a second range are approximately equal to each other and so that a ratio of an average airflow speed in a third range to the average airflow speed in the first range is less than 1.5.
    Type: Application
    Filed: March 16, 2022
    Publication date: June 30, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hiroki FUJITA, Masafumi UDA, Sachiko MATSUMOTO, Hayato NUNO, Kei TAKENAKA
  • Publication number: 20220186976
    Abstract: An air-conditioner indoor unit is configured to be capable of changing the direction of an airflow that is blown out through a blow-out port. The air-conditioner indoor unit includes a control unit that switches between a normal mode and a wide mode. The control unit extends at least vertically a range that is to be reached by the airflow in an air-conditioning target space in the wide mode compared with the normal mode and causes the air conditioning capacity of the wide mode to be lower than the air conditioning capacity of the normal mode.
    Type: Application
    Filed: March 3, 2022
    Publication date: June 16, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hiroki FUJITA, Kei TAKENAKA, Tomoyuki HAIKAWA, Hayato NUNO
  • Publication number: 20220178581
    Abstract: An air-conditioner indoor unit (10) is configured to be capable of changing the direction of an airflow that is blown out through a blow-out port (15). The air-conditioner indoor unit (10) includes a control unit (40) that switches between a normal mode and a wide mode. The control unit (40) switches to the wide mode when an air conditioning load is higher than a predetermined value and extends at least vertically a range that is to be reached by the airflow in an air-conditioning target space in the wide mode compared with the normal mode.
    Type: Application
    Filed: February 22, 2022
    Publication date: June 9, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hiroki FUJITA, Kei TAKENAKA, Tomoyuki HAIKAWA, Hayato NUNO
  • Publication number: 20210076849
    Abstract: An air blower includes: a panel (3); a frame member (5) arranged to surround the panel (3) and having a blowout port (13a, 13b, 13c, 13d, 13e, 13f, 13g) of air formed therein; and a fan (11a, 11b, 11c, 11d, 11e, 11f, 30) that sends air to the blowout port (13a, 13b, 13c, 13d, 13e, 13f, 13g). The frame member (5) produces airflows that are blown out from at least three directions and collide with each other, thereby producing an air current going forward to the panel (3).
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kei TAKENAKA, Yousuke IMAI, Yuusuke TARUKI, Keita KAWAHARA, Aya OKUNO, Masahiko CHOUJI
  • Patent number: 10309876
    Abstract: An airborne substance sensing device is capable of blocking fluorescence that is not from an airborne substance and detecting faint fluorescence of an airborne substance with a high degree of accuracy through the use of a cartridge having an introduction plate in which micropores are formed through which a gas including an airborne substance can pass. A transparent collection plate opposes the introduction plate, and the airborne substance can be made to collide on the plate and be collected through the collision of the gas having passed through the micropores. In a main body, the introduction and collection plates are disposed in parallel, and a flow path for guiding the gas including the airborne substance to the micropores is formed. An opaque mask covers the collection plate and is provided with an opening window through which light can pass at a position corresponding to a collection area.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: June 4, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Kei Takenaka, Shigenori Togashi
  • Patent number: 10082456
    Abstract: The present invention includes: an excitation light source; a probe light source; a filter that mutually multiplexes a probe light emitted from the probe light source and an excitation light emitted from the excitation light source to a same optical axis; a condenser lens that focuses the excitation light and the probe light; a sample cell that stores a sample; a reflection member that is disposed on an inner wall of the sample cell and reflects the probe light; and a detector that detects the probe light reflected at the reflection member.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: September 25, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Jiro Hashizume, Kei Takenaka, Takanori Aono
  • Patent number: 9702805
    Abstract: An airborne-substance detection device includes a cartridge and an optical detector. The cartridge includes: an inflow plate having formed therein a micropore that allows inflow of a microparticle-containing gas; a trapping plate disposed opposite the micropore and having the ability to capture the microparticles on a surface facing the micropore; and a main body in which the inflow plate and the trapping plate are installed, and in which a channel is formed that channels the gas to the micropore. The optical detector optically detects the microparticles captured on the trapping plate. The trapping plate is disposed on the outermost side of the cartridge, and is configured from a light transmissive member. The optical detector detects the captured microparticles on the trapping plate from the back side of the trapping plate.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: July 11, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Kei Takenaka, Shigenori Togashi
  • Publication number: 20170007127
    Abstract: A diagnostic result is immediately presented using a diagnostic apparatus installed in a diagnostic apparatus installation facility. Provided is a diagnostic service system which includes a diagnostic apparatus installed in a diagnostic apparatus installation facility and performing a diagnosis using a disposable device, a user terminal owned by a user of the diagnostic apparatus, and an information processing apparatus connected with the diagnostic apparatus and the user terminal and gathering a diagnostic result of the diagnostic apparatus, in which the information processing apparatus manages information of the diagnostic result diagnosed by the diagnostic apparatus and information of the user by associating the both with each other, and provides the diagnostic result in accordance with an access from the user terminal of the user.
    Type: Application
    Filed: May 5, 2016
    Publication date: January 12, 2017
    Inventor: Kei TAKENAKA
  • Patent number: 9433883
    Abstract: The present invention provides an impaction-based microorganism collecting device in which microorganisms are captured by the capture surface of a collection plate. The microorganism collecting device is designed to reduce the influence of the lateral wind flowing over the perforated plate having multiple nozzles and also prevent warpage of the perforated plate. Multiple air vents are formed around the circumference of the capture surface and through the capture surface so that air that has flowed through the nozzles of the perforated plate onto the capture surface can be discharged. This allows the air to flow in multiple directions over the capture surface, thereby reducing the speed of the air and increasing the microorganism capture rate.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: September 6, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Kei Takenaka, Yasuhiko Sasaki, Shigenori Togashi
  • Publication number: 20160223435
    Abstract: An airborne substance sensing device (1) according to the present invention is capable of blocking fluorescence that is not from an airborne substance and detecting faint fluorescence of an airborne substance with a high degree of accuracy through the use of a cartridge (10) having an introduction plate (112) in which micropores (115) are formed through which a gas including an airborne substance can pass, a transparent collection plate (114) that is disposed so as to oppose the introduction plate (112) and on which the airborne substance can be made to collide and be collected through the collision of the gas having passed through the micropores (115), a main body (110) in which the introduction plate (112) and collection plate (114) are disposed in parallel and a flow path for guiding the gas including the airborne substance to the micropores (115) is formed, and an opaque mask (117) that covers the collection plate (114) and is provided with an opening window (118) through which light can pass at a positio
    Type: Application
    Filed: October 3, 2013
    Publication date: August 4, 2016
    Applicant: Hitachi, Ltd.
    Inventors: Kei TAKENAKA, Shigenori TOGASHI
  • Publication number: 20160178506
    Abstract: The present invention includes: an excitation light source; a probe light source; a filter that mutually multiplexes a probe light emitted from the probe light source and an excitation light emitted from the excitation light source to a same optical axis; a condenser lens that focuses the excitation light and the probe light; a sample cell that stores a sample; a reflection member that is disposed on an inner wall of the sample cell and reflects the probe light; and a detector that detects the probe light reflected at the reflection member.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 23, 2016
    Inventors: Jiro HASHIZUME, Kei TAKENAKA, Takanori AONO
  • Patent number: 9291503
    Abstract: A flow type single-particle spectrometer includes a sample container which holds a sample liquid containing a particle to be inspected; a detection channel which is a flow path for optically detecting the particle to be inspected; a waste liquid container which stores the sample liquid flowing out through the detection channel; a liquid feed member; a white light source which emits white light; an excitation light dispersion element which spatially disperses the white light into wavelength components; an excitation light collecting element which collects light; a fluorescence light collecting element which collects fluorescence light and side scattered light; a fluorescence light dispersion element which spatially disperses the fluorescence light into wavelength components; a dispersed light collecting element which collects the fluorescence light dispersed by the fluorescence light dispersion element; and a multi-channel light detector which detects intensity of light for each wavelength.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: March 22, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Kei Takenaka, Shigenori Togashi
  • Publication number: 20150377762
    Abstract: An airborne-substance detection device includes a cartridge and an optical detector. The cartridge includes: an inflow plate having formed therein a micropore that allows inflow of a microparticle-containing gas; a trapping plate disposed opposite the micropore and having the ability to capture the microparticles on a surface facing the micropore; and a main body in which the inflow plate and the trapping plate are installed, and in which a channel is formed that channels the gas to the micropore. The optical detector optically detects the microparticles captured on the trapping plate. The trapping plate is disposed on the outermost side of the cartridge, and is configured from a light transmissive member. The optical detector detects the captured microparticles on the trapping plate from the back side of the trapping plate.
    Type: Application
    Filed: January 29, 2013
    Publication date: December 31, 2015
    Inventors: Kei TAKENAKA, Shigenori TOGASHI
  • Publication number: 20150300881
    Abstract: A flow type single-particle spectrometer includes a sample container which holds a sample liquid containing a particle to be inspected; a detection channel which is a flow path for optically detecting the particle to be inspected; a waste liquid container which stores the sample liquid flowing out through the detection channel; a liquid feed member; a white light source which emits white light; an excitation light dispersion element which spatially disperses the white light into wavelength components; an excitation light collecting element which collects light; a fluorescence light collecting element which collects fluorescence light and side scattered light; a fluorescence light dispersion element which spatially disperses the fluorescence light into wavelength components; a dispersed light collecting element which collects the fluorescence light dispersed by the fluorescence light dispersion element; and a multi-channel light detector which detects intensity of light for each wavelength.
    Type: Application
    Filed: November 8, 2012
    Publication date: October 22, 2015
    Inventors: Kei TAKENAKA, Shigenori TOGASHI
  • Publication number: 20150010902
    Abstract: Disclosed is an apparatus for monitoring airborne microorganisms composed of: a chassis, which has a fan for flowing the air therein from the outside at a portion thereof and of which inside is spatially segmented by partition plates for performing a plurality of steps; a perforated plate, which is disposed at a portion of the chassis and has a plurality of nozzles for focusing split air flows passing through a plurality of spaces in a given direction; a capturing plate, which has a plurality of trapping surfaces at the positions opposite to the plurality of nozzles of the perforated plate; a capturing plate control part, which moves the capturing plate relative to the perforated plate; and an optical detection part for fluorescence generated from the microorganisms on the trapping surface of the capturing plate.
    Type: Application
    Filed: February 8, 2012
    Publication date: January 8, 2015
    Applicant: Hitachi, Ltd.
    Inventors: Kei Takenaka, Hideyuki Noda, Naoshi Itabashi, Yoshiaki Yazawa
  • Patent number: 8889349
    Abstract: A method for accurately counting desired cells or microorganisms (viable bacteria) in a sample fluid in which contaminants are included is provided. One or plural types of membrane-permeable fluorochromes whose fluorescence amount is amplified by binding to a nucleic acid and glycerin are added to a sample fluid containing cells or microorganisms to be counted and allowed to stand for a certain time. Glycerin is added before or after or simultaneously with the mixing of the sample fluid and the fluorochrome(s). The cells or microorganisms to be counted are counted by staining the cells or microorganisms to be counted, followed by irradiating with light having a specific wavelength to detect the fluorescence emitted from the cells or microorganisms.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: November 18, 2014
    Assignee: Hitachi Engineering & Services Co., Ltd.
    Inventors: Kei Takenaka, Hideki Nakamoto, Kazuo Takei, Masahiro Kurihara, Yuusuke Watanabe, Hisao Saito, Yasuhiko Sasaki
  • Publication number: 20140246321
    Abstract: Micropillars are arranged a first row up to an nth row, the micropillars in one row are disposed at the same interval “a” from each other, and each of the rows is disposed in a position shifted by a distance “b” with respect to an immediately preceding upstream row, in a row direction. A liquid that contains particles flows through between the micropillars. A voltage is applied from a power supply to electrodes, thereby generating an electric field in a flow channel. The micropillars are electrical insulating structures, so in regions of narrow intervals between the micropillars, electrical lines of force are dense and strength of the electric field is high, and in regions of wide intervals between the micropillars, electrical lines of force are sparse and the strength of the electric field is low.
    Type: Application
    Filed: November 9, 2011
    Publication date: September 4, 2014
    Applicant: HITACHI, LTD.
    Inventors: Nobuhiro Tsukada, Kei Takenaka
  • Publication number: 20130319239
    Abstract: The present invention provides an impaction-based microorganism collecting device in which microorganisms are captured by the capture surface of a collection plate. The microorganism collecting device is designed to reduce the influence of the lateral wind flowing over the perforated plate having multiple nozzles and also prevent warpage of the perforated plate. Multiple air vents are formed around the circumference of the capture surface and through the capture surface so that air that has flowed through the nozzles of the perforated plate onto the capture surface can be discharged. This allows the air to flow in multiple directions over the capture surface, thereby reducing the speed of the air and increasing the microorganism capture rate.
    Type: Application
    Filed: February 22, 2011
    Publication date: December 5, 2013
    Applicant: Hitachi, Ltd.
    Inventors: Kei Takenaka, Yasuhiko Sasaki, Shigenori Togashi
  • Patent number: 8409850
    Abstract: A microorganism testing device includes a measurement chip having a specimen container; a reaction container for mixing a specimen and a dyeing reagent; a bacteria detection portion irradiated with excitation light; a detection liquid waste container a solution flow path which connects the specimen container, the reaction container and the bacteria detection portion, and ventilation ports which are connected to the specimen container, the reaction container and the detection liquid waste container, through a air flow path and is connected to a chip connecting tube. Bacteria are detected in the bacteria detection portion by switching of the states of the containers between a sealed state and a state open to the atmospheric pressure, by moving the specimen to the reaction container to mix and stir the specimen and the dyeing reagent, and by moving of the liquid mixture to the detection liquid waste container.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: April 2, 2013
    Assignee: Hitachi Engineering & Services Co., Ltd.
    Inventors: Kei Takenaka, Yasuhiko Sasaki, Ryo Miyake
  • Patent number: 8404480
    Abstract: Provided are a microorganism testing chip capable of suppressing self-fluorescence and enhancing mass productivity, and a microorganism testing device using the same. The microorganism testing chip includes a main body and a fungus body detection unit mounted on the main body. The main body has a detection window frame portion which is a through-hole or a pass-through groove. The fungus body detection unit is disposed to cover the detection window frame portion and has a fungus body detection flow path connected to flow paths provided in the main body. The fungus body detection unit includes a cover member and a flow path member, and is formed by attaching these two members to each other. The flow path member has a groove. By attaching the two members to each other, the groove of the flow path member serves as the fungus body detection flow path.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: March 26, 2013
    Assignee: Hitachi Engineering & Services Co., Ltd.
    Inventors: Kei Takenaka, Yasuhiko Sasaki, Hideki Nakamoto, Kazuo Takei, Masahiro Kurihara, Yuusuke Watanabe, Hisao Saito