Patents Assigned to Iwasaki Electric Co., Ltd.
  • Publication number: 20200231924
    Abstract: Provided are a substrate for test use that is preferable for use in a test such as a culture test, and a method for manufacturing the substrate for test use. The substrate for test use, in which a solution retaining part for retaining water or an aqueous solution, is formed at a surface of a substrate of polydimethylsiloxane (PDMS). The solution retaining part is a concave part having a hydrophilic surface layer. The surface layer has a maximum thickness of 1 ?m or larger.
    Type: Application
    Filed: May 17, 2018
    Publication date: July 23, 2020
    Applicants: IWASAKI ELECTRIC CO., LTD., NATIONAL INSTITUTES FOR QUANTUM AND RADIOLOGICAL SCIENCE AND TECHNOLOGY
    Inventors: Shinobu KINOSHITA, Takashi IDE, Tomoko OYAMA, Mitsumasa TAGUCHI, Bin Jeremiah Duenas BARBA
  • Patent number: 10464312
    Abstract: An electron-beam-curing resin or a photocurable resin not containing a photopolymerization initiator is cured by photoirradiation under an atmosphere equal to or lower than predetermined oxygen concentration for not causing oxygen inhibition to polymerization of photocurable resin or electron beam-curable resin, an ultraviolet ray in wavelength region corresponding to a light absorption characteristic of the photocurable resin or the electron beam-curable resin is irradiated on the photocurable resin or the electron beam-curable resin to polymerize the photocurable resin or the electron beam-curable resin. After an ultraviolet ray is irradiated on the photocurable resin or the electron beam-curable resin to polymerize at least a surface layer, an electron beam is irradiated on the photocurable resin or the electron beam-curable resin to polymerize a deep part, and the entire photocurable resin or the entire electron beam-curable resin is cured.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: November 5, 2019
    Assignee: IWASAKI ELECTRIC CO., LTD.
    Inventors: Shinobu Kinoshita, Ryoji Fujimori
  • Publication number: 20190039372
    Abstract: To cure, with light irradiation, photocurable resin or electron beam-curable resin not containing a photopolymerization initiator. Under an atmosphere equal to or lower than predetermined oxygen concentration for not causing oxygen inhibition to polymerization of photocurable resin or electron beam-curable resin, an ultraviolet ray in wavelength region corresponding to a light absorption characteristic of the photocurable resin or the electron beam-curable resin is irradiated on the photocurable resin or the electron beam-curable resin to polymerize the photocurable resin or the electron beam-curable resin. After an ultraviolet ray is irradiated on the photocurable resin or the electron beam-curable resin to polymerize at least a surface layer, an electron beam is irradiated on the photocurable resin or the electron beam-curable resin to polymerize a deep part, and the entire photocurable resin or the entire electron beam-curable resin is cured.
    Type: Application
    Filed: January 18, 2017
    Publication date: February 7, 2019
    Applicant: IWASAKI ELECTRIC CO., LTD.
    Inventors: Shinobu KINOSHITA, Ryoji FUJIMORI
  • Patent number: 10153152
    Abstract: The present technology provides a high-pressure sodium lamp lighting device that reduces occurrence of the acoustic resonance phenomenon. A high-pressure sodium lamp lighting device of one aspect of the present invention comprises a high-pressure sodium lamp of arc length AL within the scope of 142.8 mm?AL?167 mm. The lighting device also includes an electronic ballast configured to supply a high frequency AC voltage to the high-pressure sodium lamp. A lighting frequency of the electronic ballast is a frequency that avoids a first and a second acoustic resonance occurrence bands f1 kHz and f2 kHz determined based on equations from an arc tube inner diameter D mm of the high-pressure sodium lamp. The equation for f1 is a range of f1min to f1max=(?7.4D+130) to (?8.3D+156). The equation for f2 is a range of f2 min to f2max=(?11.5D+200) to (?10.0D+197).
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: December 11, 2018
    Assignee: Iwasaki Electric Co., Ltd.
    Inventors: Kouji Komata, Hiroki Takahashi, Takuya Shimomura
  • Patent number: 9995475
    Abstract: An illumination device that can obtain high withstanding voltage performance while making heat transfer to a casing from a light-emitting element favorable is provided. In a sports illumination device including a COB type LED as a light source in a casing, a base plate that has the COB type LED mounted thereon and is formed from a high thermoconductive material, to which heat of the COB type LED is transferred, is included, the casing is provided with an engaging hole with which the base plate is engaged in a state in which a part of the base plate is exposed outside the casing, and an insulation packing is provided at a site of contact of the base plate and the engaging hole in the casing.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: June 12, 2018
    Assignee: IWASAKI ELECTRIC CO., LTD.
    Inventors: Yuuichi Kimoto, Nobuyuki Baba, Keiichirou Kinoshita
  • Patent number: 9879851
    Abstract: An LED lamp is equipped with a plurality of light source units each having a mounting board on which a light emitting element is mounted, on a front surface of a substrate, the plurality of light source units are disposed around an axis C of the LED lamp with back surfaces of the respective substrates facing inside, and gaps G1 left from one another, and heat radiation fins that are disposed to be inclined with respect to an axial direction of the axis C are provided on the back surface of the substrate.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: January 30, 2018
    Assignee: IWASAKI ELECTRIC CO., LTD.
    Inventors: Atsushi Ohno, Takayoshi Imanari, Moriyuki Sekine
  • Patent number: 9804023
    Abstract: A glare measuring system is configured to have an imaging camera which is supported to be rotatable within a horizontal plane, and a processing device which calculates equivalent veiling luminance on the basis of a pickup image of the imaging camera and calculates the value of a glare rating GR on the basis of the equivalent veiling luminance. The imaging camera has a super-wide-angle lens mounted thereon, and picks up an image in a position which is rotated within the horizontal plane by every angle corresponding to the angle of view ? of the super-wide-angle. The processing device combines pickup images to generate a composite image in which a glare measurement direction is set to the center of the composite image, calculates equivalent veiling luminance on the basis of the composite image, and calculates the value of the glare rating in the glare measurement direction.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: October 31, 2017
    Assignee: IWASAKI ELECTRIC CO., LTD.
    Inventors: Tetsuji Yamada, Kosuke Oshima
  • Patent number: 9625386
    Abstract: An imaging system includes: a first lighting device for irradiating an imaging target object with visible light; a second lighting device for irradiating the imaging target object with near-infrared light; and an image sensor for photodetecting visible light caused by the visible light and coming from the imaging target object and fluorescence caused by the near-infrared light and coming from the imaging target object during a predetermined shutter open period every frame of a predetermined period. The image sensor outputs photodetection signals corresponding to photodetection amounts of the visible light and the fluorescence. The imaging system also includes a controller that generates a composite image of a visible image and a fluorescence image based on the photodetection signals, and has a lighting controller that turns on the second lighting device with optical power corresponding to the shutter open period in synchronism with the shutter open period.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: April 18, 2017
    Assignees: IWASAKI ELECTRIC CO., LTD., KOCHI UNIVERSITY
    Inventors: Mitsuyuki Hatanaka, Takashi Sato, Nozomu Kajiwara, Takaaki Komiya, Takayuki Sato
  • Publication number: 20160231176
    Abstract: A light irradiation device for irradiating polarized light having a light source, a device-side polarizer for polarizing light of the light source and a measuring device that measures a polarization axis of the light polarized by the device-side polarizer is provided, an extinction ratio of the device-side polarizer being set to 100:1 or more.
    Type: Application
    Filed: February 5, 2015
    Publication date: August 11, 2016
    Applicants: POLARIZATION SOLUTIONS, LLC, IWASAKI ELECTRIC CO., LTD.
    Inventors: Hirokazu Ishitobi, Xuegong Deng, Thomas Wray Tombler, JR.
  • Publication number: 20160223184
    Abstract: An LED lamp is equipped with a plurality of light source units each having a mounting board on which a light emitting element is mounted, on a front surface of a substrate, the plurality of light source units are disposed around an axis C of the LED lamp with back surfaces of the respective substrates facing inside, and gaps G1 left from one another, and heat radiation fins that are disposed to be inclined with respect to an axial direction of the axis C are provided on the back surface of the substrate.
    Type: Application
    Filed: June 9, 2014
    Publication date: August 4, 2016
    Applicant: IWASAKI ELECTRIC CO., LTD.
    Inventors: Atsushi OHNO, Takayoshi IMANARI, Moriyuki SEKINE
  • Publication number: 20160203970
    Abstract: In a halogen lamp the middle portion of filament can be supported by support rods so as not to sag under its own weight, and the support rods are not deformed so as to bend by filament weight as the rod is not weakened by influence of high heat ray emitting from filament. A halogen lamp providing, in a glass envelope positioned horizontally at the lamp installing, a coil filament, a pair of short and long electric supply rods which support a front end and a rear end of the filament and are connected to them, and a pair of short and long support rods arranged in parallel in a lower side of the filament to support two points which are back and forth in longitudinal middle area of the filament to diagonal upward direction from the right and left underside of the filament.
    Type: Application
    Filed: August 6, 2014
    Publication date: July 14, 2016
    Applicant: IWASAKI ELECTRIC CO., LTD.
    Inventors: Akira URUSHIBARA, Katsufumi ARAI
  • Publication number: 20160161100
    Abstract: An illumination device that can obtain high withstanding voltage performance while making heat transfer to a casing from a light-emitting element favorable is provided. In a sports illumination device including a COB type LED as a light source in a casing, a base plate that has the COB type LED mounted thereon and is formed from a high thermoconductive material, to which heat of the COB type LED is transferred, is included, the casing is provided with an engaging hole with which the base plate is engaged in a state in which a part of the base plate is exposed outside the casing, and an insulation packing is provided at a site of contact of the base plate and the engaging hole in the casing.
    Type: Application
    Filed: May 30, 2014
    Publication date: June 9, 2016
    Applicant: IWASAKI ELECTRIC CO., LTD.
    Inventors: Yuuichi KIMOTO, Nobuyuki BABA, Keiichirou KINOSHITA
  • Patent number: 9332892
    Abstract: In a light converging type light guide unit for guiding light emitted from a light source to a light-receiving member having a reflection face extending from a light emission point to at least a place in the neighborhood of a light reception point of the light-receiving member, the reflection face has first and second focal points at which the light emission and reception points are disposed, respectively, and comprises an elliptical reflection face at the side of the light reception point, and a curved surface reflection face that is provided at the side of the light emission point, reflects light of the light source therefrom to the elliptical reflection face and obtains light that travels to the light reception point and is incident to the light reception point at a predetermined incidence angle or less by reflection from the elliptical reflection face.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: May 10, 2016
    Assignee: IWASAKI ELECTRIC CO., LTD.
    Inventors: Mitsuyuki Hatanaka, Takashi Satou, Nozomu Kajiwara, Takaaki Komiya
  • Publication number: 20160084475
    Abstract: A lighting apparatus that can easily change light distribution is provided. In an LED lighting apparatus in which an LED as a light source, and a reflector having a reflecting surface in a shape of a curved surface of revolution are accommodated in an apparatus main body, the reflector is made separable into a base end side and a tip end side of the reflecting surface, and a tip end of the base end side part is protruded from the apparatus main body .
    Type: Application
    Filed: August 22, 2013
    Publication date: March 24, 2016
    Applicant: IWASAKI ELECTRIC CO., LTD.
    Inventors: Kazutoshi FUJII, Tadashi OOMURO, Takahito SHIMIZU
  • Publication number: 20160069807
    Abstract: An imaging system includes: a first lighting device for irradiating an imaging target object with visible light; a second lighting device for irradiating the imaging target object with near-infrared light; and an image sensor for photodetecting visible light caused by the visible light and coming from the imaging target object and fluorescence caused by the near-infrared light and coming from the imaging target object during a predetermined shutter open period every frame of a predetermined period. The image sensor outputs photodetection signals corresponding to photodetection amounts of the visible light and the fluorescence. The imaging system also includes a controller that generates a composite image of a visible image and a fluorescence image based on the photodetection signals, and has a lighting controller that turns on the second lighting device with optical power corresponding to the shutter open period in synchronism with the shutter open period.
    Type: Application
    Filed: September 10, 2014
    Publication date: March 10, 2016
    Applicants: IWASAKI ELECTRIC CO., LTD., KOCHI UNIVERSITY
    Inventors: Mitsuyuki HATANAKA, Takashi SATO, Nozomu KAJIWARA, Takaaki KOMIYA, Takayuki SATO
  • Patent number: 9275845
    Abstract: A ceramic metal-halide lamp is provided that can improve both lamp efficacy and color characteristics, and in which light color shift from the white region can be prevented when the lamp is dimmed. The lamp includes a luminous material, which contains sodium iodide (NaI), cerium iodide (CeI3), thallium iodide (TIl), dysprosium iodide (DyI3) and indium iodide (InI). The amount D[DyI3] of dysprosium iodide DyI3 is selected so as to fall within a range of 0.07 mg/cm3?D[DyI3]?1.53 mg/cm3 and a weight ratio R[InI/TIl] of indium iodide InI relative to thallium iodide TIl contained in the luminous material is selected to so as to fall within a range of 0<R[InI/TIl]?0.23.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: March 1, 2016
    Assignee: Iwasaki Electric Co., Ltd.
    Inventors: Yasuhisa Matsumoto, Yasushi Sasai, Akiyoshi Maehara
  • Patent number: 9239151
    Abstract: A lamp achieves high output power like an HID lamp by using a light emitting element(s) as a light source. A mount board having LED mounted thereon is provided on the surface of a base member, and there are provided plural flat plate type light source units arranged around an axial line while the back surfaces thereof faces inwards, and a support member provided on the axial line. The plural light source units are supported on the support member, and a space through which air flows is provided at the back surface side of each base member.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: January 19, 2016
    Assignees: IWASAKI ELECTRIC CO., LTD., EYE LIGHTING SYSTEMS CORPORATION
    Inventors: Takahiro Mikami, Yuuichi Kimoto, Nobuyuki Baba, Takayoshi Imanari
  • Publication number: 20150292718
    Abstract: A lamp achieves high output power like an HID lamp by using a light emitting element(s) as a light source. A mount board having LED mounted thereon is provided on the surface of a base member, and there are provided plural flat plate type light source units arranged around an axial line while the back surfaces thereof faces inwards, and a support member provided on the axial line. The plural light source units are supported on the support member, and a space through which air flows is provided at the back surface side of each base member.
    Type: Application
    Filed: June 22, 2015
    Publication date: October 15, 2015
    Applicants: EYE LIGHTING SYSTEMS CORPORATION, IWASAKI ELECTRIC CO., LTD.
    Inventors: Takahiro MIKAMI, Yuuichi KIMOTO, Nobuyuki BABA, Takayoshi IMANARI
  • Patent number: 9097391
    Abstract: A lamp achieves high output power like an HID lamp by using a light emitting element(s) as a light source. A mount board having LED mounted thereon is provided on the surface of a base member, and there are provided plural flat plate type light source units arranged around an axial line while the back surfaces thereof faces inwards, and a support member provided on the axial line. The plural light source units are supported on the support member, and a space through which air flows is provided at the back surface side of each base member.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: August 4, 2015
    Assignees: IWASAKI ELECTRIC CO., LTD., EYE LIGHTING SYSTEMS CORPORATION
    Inventors: Takahiro Mikami, Yuuichi Kimoto, Nobuyuki Baba, Takayoshi Imanari
  • Patent number: 8975870
    Abstract: A charging device supplies charge current to a battery group having plural secondary batteries connected in series to perform charging. In the charging device, a discharge route circuit for discharging charge current to be supplied to the secondary battery when the battery voltage of the secondary battery exceeds a predetermined voltage while charging is provided to every secondary battery. Also provided is a cut-off circuit for cutting off the discharge route circuit from each secondary battery after charging is completed. Discharge at a discharge route circuit is suppressed and energy efficiency is increased.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: March 10, 2015
    Assignees: Iwasaki Electric Co., Ltd., Tokyo Rectifier Co., Ltd., JPS Co., Ltd.
    Inventors: Tomomi Maruyama, Eiji Saiki, Akitoshi Kato, Yoshihiro Honda