Patents by Inventor Akihisa Nakajima

Akihisa Nakajima 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: 10145995
    Abstract: Provided is a near-infrared reflective film that suppresses reflection peaks such as ripples that can arise in the visible region and shows an excellent reflection peak in the near-infrared region; the near-infrared reflective film having a support and a dielectric multilayer film disposed on the support, in which a high-refractive index layer and a low-refractive index layer are alternately layered, wherein any of the high-refractive index layer and the low-refractive index layer adjacent to said high-refractive index layer satisfy predetermined conditions.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: December 4, 2018
    Assignee: Konica Minolta, Inc.
    Inventor: Akihisa Nakajima
  • Patent number: 9804308
    Abstract: The near-infrared reflective film has, on a base material, a high refractive layer containing a water-soluble polymer and a metal oxide particle having a refractive index higher than the refractive index of the water-soluble polymer, and a low refractive layer containing a water-soluble polymer and a metal oxide particle having a refractive index lower than the refractive index of the water-soluble polymer are alternately laminated individually in two or more layers. The total number of the layers of the high refractive layer and the low refractive layer is n. The total film thickness of the component layers from the region of n/2 to the base material is ?d1, and the total film thickness of the component layers from the region of n/2 to the outermost layer is ?d2. The film thickness ratio ?d1/?d2 is from 1.05 to 1.80.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: October 31, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventor: Akihisa Nakajima
  • Patent number: 9366788
    Abstract: To provide a heat radiation reflective film which has a high heat radiation reflectance and good adherence property (peel resistance), which can have a large surface area, and which de-emphasizes certain visible reflected lights; and a method for producing the film. And to provide a heat radiation reflector which includes the heat radiation reflective film as described above. A heat radiation reflective film comprising: at least one heat radiation reflective unit on one surface of a support, the unit comprising: at least 6 laminated layers, each layer having a different refractive index from an adjacent layer, wherein a first unit as one of the heat radiation reflective units comprises the layer closest to the support having a thickness which is 3 times or more of the thickness of the layer farthest from the support.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: June 14, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventor: Akihisa Nakajima
  • Patent number: 9151874
    Abstract: The present invention provides a near-infrared reflective film and a near-infrared reflector, which can be used over large areas and are flexible, and have low haze and high visible light transmittance. The near-infrared reflective film comprises at least one unit composed of a high refractive index layer and low refractive index layer on a substrate, and is characterized in that the refractive index difference between an adjacent high refractive index layer and low refractive index layer is at least 0.1, and said high refractive index layer contains at least one type of compound (A) selected from: 1) a rutile-type titanium oxide having a volume-average particle diameter of not more than 100 nm; 2) a water-soluble polymer; and 3) the following group of compounds. Group of compounds: a carboxyl group-containing compound, hydroxamic acids, pyridine derivatives.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: October 6, 2015
    Assignee: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Yasuo Taima, Shinichi Suzuki, Takeo Arai, Akihisa Nakajima, Akihito Hisamitsu
  • Publication number: 20150192718
    Abstract: Provided is an infrared reflective film which has excellent insulating effects in the summer season and excellent heat retention effects in the winter season. Further, provided is an infrared shielding film in which the risk of heat cracks can be reduced by preventing heat generation on the film and which can be easily pasted.
    Type: Application
    Filed: July 5, 2013
    Publication date: July 9, 2015
    Applicant: Konica Minolta, Inc.
    Inventors: Makiko Saito, Akihisa Nakajima
  • Patent number: 9067240
    Abstract: Disclosed is a method for manufacturing a near-infrared reflective body in which a near-infrared reflective film is manufactured that has excellent manufacturing cost performance, is capable of being employed over a large area, and has excellent application stability and resistance to refractive index unevenness in the surface. A method for manufacturing a near-infrared reflective film in which a high refractive index layer and a low refractive index layer are alternately laminated on a support, wherein the difference in the refractive index of adjacent high refractive index layers and low refractive index layers is at least 0.3, and the near-infrared reflective film is formed using a coating liquid for a high refractive index layer and a coating liquid for a low refractive index layer, if the viscosity of the high refractive index layers and low refractive index layers at 15° C. is ?15 and at 45° C. is ?45, the viscosity ratio (?15/?45) in each case is at least 2.0.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: June 30, 2015
    Assignee: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Akihisa Nakajima, Takeo Arai
  • Publication number: 20150168618
    Abstract: Provided is an infrared shielding body in which film cracking of a dielectric multilayer film is suppressed even under severe conditions. The present invention relates to an infrared shielding body having a wavelength exhibiting a maximum reflectivity in the range of 850 nm to 1500 nm in a reflection spectrum of a wavelength from 400 nm to 2500 nm, the infrared shielding body comprising a first reflective film, a light incoherent layer, and a second reflective film laminated in this order, wherein the first reflective film and the second reflective film contain a polymer and metal-containing particles.
    Type: Application
    Filed: May 16, 2013
    Publication date: June 18, 2015
    Inventor: Akihisa Nakajima
  • Publication number: 20150015940
    Abstract: Provided is a near-infrared reflective film that suppresses reflection peaks such as ripples that can arise in the visible region and shows an excellent reflection peak in the near-infrared region. A near-infrared reflective film having a support, and a dielectric multilayer film disposed on the support, in which a high-refractive index layers and a low-refractive index layer are alternately layered, wherein any of the high-refractive index layer and the low-refractive index layer adjacent to said high-refractive index layer satisfy: 1.1?(dH×nH)/(dL×nL)>1 or 1>(dH×nH)/(dL×nL)?0.
    Type: Application
    Filed: February 25, 2013
    Publication date: January 15, 2015
    Inventor: Akihisa Nakajima
  • Patent number: 8920749
    Abstract: A microchip capable of sending liquid in a micro flow channel to a predetermined place irrespective of the pressure difference and sending a mixture of two or more liquid masses to a predetermined place even if the channel structure is simple. The microchip comprises an intermediate reservoir portion provided in a micro flow channel and adapted for temporarily holding liquid sent through the micro flow channel. The microchip is characterized in that the intermediate reservoir portion has a side channel, the volume of the intermediate reservoir portion is smaller than the total volume of the liquid sent into the intermediate reservoir portion, the side channel is provided for communication of a micro flow channel on the upstream side of the intermediate reservoir portion with a micro flow channel on the downstream side thereof, and the cross-section area of the side channel is smaller than that of the micro flow channel.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: December 30, 2014
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Youichi Aoki, Akihisa Nakajima, Kusunoki Higashino, Yasuhiro Sando, Yoshikazu Kurihara
  • Publication number: 20140313573
    Abstract: Provided are an optical reflection film that uses an aqueous coating liquid for generating at refractive index, has a low production cost, is able to have a large area, and has a high coating film thermal stability, a method of manufacturing the optical reflection film, and an optical reflection body provided with the optical reflection film.
    Type: Application
    Filed: June 22, 2012
    Publication date: October 23, 2014
    Applicant: KONICA MINOLTA , INC.
    Inventors: Akihisa Nakajima, Yasuo Taima
  • Publication number: 20140162373
    Abstract: A microchip capable of sending liquid in a micro flow channel to a predetermined place irrespective of the pressure difference and sending a mixture of two or more liquid masses to a predetermined place even if the channel structure is simple. The microchip comprises an intermediate reservoir portion provided in a micro flow channel and adapted for temporarily holding liquid sent through the micro flow channel. The microchip is characterized in that the intermediate reservoir portion has a side channel, the volume of the intermediate reservoir portion is smaller than the total volume of the liquid sent into the intermediate reservoir portion, the side channel is provided for communication of a micro flow channel on the upstream side of the intermediate reservoir portion with a micro flow channel on the downstream side thereof, and the cross-section area of the side channel is smaller than that of the micro flow channel.
    Type: Application
    Filed: August 14, 2013
    Publication date: June 12, 2014
    Applicant: Konica Minolta, Inc.
    Inventors: Youichi AOKI, Akihisa NAKAJIMA, Kusunoki HIGASHINO, Yasuhiro SANDO, Yoshikazu KURIHARA
  • Publication number: 20140002895
    Abstract: [Object] To provide a heat radiation reflective film which has a high heat radiation reflectance and good adherence property (peel resistance), which can have a large surface area, and which de-emphasizes certain visible reflected lights; and a method for producing the film. And to provide a heat radiation reflector which includes the heat radiation reflective film as described above. [Means of Realizing the Object] A heat radiation reflective film comprising: at least one heat radiation reflective unit on one surface of a support, the unit comprising: at least 6 laminated layers, each layer having a different refractive index from an adjacent layer, wherein a first unit as one of the heat radiation reflective units comprises the layer closest to the support having a thickness which is 3 times or more of the thickness of the layer farthest from the support.
    Type: Application
    Filed: March 12, 2012
    Publication date: January 2, 2014
    Applicant: KONICA MINOLTA , INC.
    Inventor: Akihisa Nakajima
  • Publication number: 20130250406
    Abstract: [Problem] Provided is a near-infrared reflective film having an excellent near-infrared reflectivity, and a high transmittance in the visible light region, and not having visible light reflectivity irregularity, and a near-infrared reflector provided with the film.
    Type: Application
    Filed: November 17, 2011
    Publication date: September 26, 2013
    Applicant: KONICA MINOLTA, INC.
    Inventor: Akihisa Nakajima
  • Patent number: 8486350
    Abstract: Provided is a microchip which is capable of determining the quantity of the liquid in the chip and dividing the liquid, and has a relatively simple flow passage structure. In the microchip liquid supply system, a portion of the liquid in an upstream passage among the liquid injected into a first flow passage is supplied from a liquid discharge passage by operating a suction pump connected to a liquid supply passage in such a state that an air vent hole is closed. Thereafter, the suction pump is operated with the air vent hole closed, whereby a portion of the liquid in a quantity determination passage among the liquid injected into the first flow passage is supplied from a liquid supply passage.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: July 16, 2013
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Akihisa Nakajima, Kusunoki Higashino, Yasuhiro Sando, Youichi Aoki
  • Publication number: 20130114132
    Abstract: Disclosed is a method for manufacturing a near-infrared reflective body in which a near-infrared reflective film is manufactured that has excellent manufacturing cost performance, is capable of being employed over a large area, and has excellent application stability and resistance to refractive index unevenness in the surface. A method for manufacturing a near-infrared reflective film in which a high refractive index layer and a low refractive index layer are alternately laminated on a support, wherein the difference in the refractive index of adjacent high refractive index layers and low refractive index layers is at least 0.3, and the near-infrared reflective film is formed using a coating liquid for a high refractive index layer and a coating liquid for a low refractive index layer, if the viscosity of the high refractive index layers and low refractive index layers at 15° C. is ?15 and at 45° C. is ?45, the viscosity ratio (?15/?45) in each case is at least 2.0.
    Type: Application
    Filed: July 6, 2011
    Publication date: May 9, 2013
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Akihisa Nakajima, Takeo Arai
  • Publication number: 20130100523
    Abstract: The present invention provides a near-infrared reflective film and a near-infrared reflector, which can be used over large areas and are flexible, and have low haze and high visible light transmittance. The near-infrared reflective film comprises at least one unit composed of a high refractive index layer and low refractive index layer on a substrate, and is characterized in that the refractive index difference between an adjacent high refractive index layer and low refractive index layer is at least 0.1, and said high refractive index layer contains at least one type of compound (A) selected from: 1) a rutile-type titanium oxide having a volume-average particle diameter of not more than 100 nm; 2) a water-soluble polymer; and 3) the following group of compounds. Group of compounds: a carboxyl group-containing compound, hydroxamic acids, pyridine derivatives.
    Type: Application
    Filed: July 7, 2011
    Publication date: April 25, 2013
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Yasuo Taima, Shinichi Suzuki, Takeo Arai, Akihisa Nakajima, Akihito Hisamitsu
  • Patent number: 8257974
    Abstract: In the case of passing a reagent in a reaction channel in a microchip, which carries a reactant capable of reacting with the reagent on the wall thereof, and bringing the reactant into contact with the reagent so as to carry out a reaction, the reagent is efficiently passed to the reactant to thereby promote the progress of the reaction. In carrying out the reaction as described above, the reagent (30a) is passed in such a manner that the periphery of the gas/liquid interface at the front end of the reagent moves forward and backward along the wall face of the reaction channel (10). After the completion of the reaction between the reagent (30a) and the reactant, another reagent (30b), which is to be reacted with the reactant capable of reacting with the reagent that is carried on the reaction channel, is passed into the reaction channel (10) while providing a gas in the front edge side thereof.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: September 4, 2012
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Akihisa Nakajima, Kusunoki Higashino, Yasuhiro Sando, Youichi Aoki, Kohsuke Tanimoto
  • Patent number: 8178290
    Abstract: The present invention provides a solid support for performing steps of isolation of cell or extraction and purification of nucleic acid, safely, easily, efficiently, and with high yield in the genetic test for investigating the presence of pathogenic bacterial infection. A solid support for binding with cell as an embodiment of the above-described solid support, comprises a polypeptide having capability of binding with my colic acid-containing glycolipid which is immobilized on the surface of a carrier. In addition, a solid support for binding with nucleic acid as another embodiment of the above-described solid support, comprises a polypeptide having capability of binding with nucleic acid which is immobilized on the surface of a carrier.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: May 15, 2012
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Noriaki Yamamoto, Keigo Tamaki, Koji Miyazaki, Akihisa Nakajima
  • Patent number: 8133456
    Abstract: A microreactor capable of reaction between a sample and a mixed reagent containing a mixture of multiple reagents, which microreactor avoids the interposition of air between driving solution and reagents and realizes high-precision controlling of the timing of mixing of reagents and other liquids, the mixing ratio of liquids, the pressure for liquid feeding, etc. Further, there is provided a method of liquid feeding making use of the same. Accordingly, a flow path branched at the position of an inlet from a flow path through which an opening communicating with an external pump communicates with the inlet is provided with an air evacuation flow path with its terminal open outward. Further, the flow path resistance of the air evacuation flow path for a liquid is made greater than the flow path resistance, for the liquid, of a flow channel from the reagent storage chamber to a reagent feed-out flow path.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: March 13, 2012
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Kusunoki Higashino, Akihisa Nakajima, Yasuhiro Sando, Youichi Aoki
  • Publication number: 20110226339
    Abstract: A microchip capable of sending liquid in a micro flow channel to a predetermined place irrespective of the pressure difference and sending a mixture of two or more liquid masses to a predetermined place even if the channel structure is simple. The microchip comprises an intermediate reservoir portion provided in a micro flow channel and adapted for temporarily holding liquid sent through the micro flow channel. The microchip is characterized in that the intermediate reservoir portion has a side channel, the volume of the intermediate reservoir portion is smaller than the total volume of the liquid sent into the intermediate reservoir portion, the side channel is provided for communication of a micro flow channel on the upstream side of the intermediate reservoir portion with a micro flow channel on the downstream side thereof, and the cross-section area of the side channel is smaller than that of the micro flow channel.
    Type: Application
    Filed: December 9, 2008
    Publication date: September 22, 2011
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.,
    Inventors: Youichi Aoki, Akihisa Nakajima, Kusunoki Higashino, Yasuhiro Sando, Yoshikazu Kurihara