Patents by Inventor Yasuharu Yamada

Yasuharu Yamada 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: 10690895
    Abstract: A zoom lens includes in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, a fourth lens unit having a negative refractive power, and a fifth lens unit having a positive refractive power. The first lens unit includes a positive lens, and the second lens unit includes a positive lens, and the following conditional expressions (1), (2), (3), and (4) are satisfied: ?0.015?Tp2G_min_p?0.015??(1), 70.3??d1G_max_p??(2), 1.76?nd2G_max_p?2.3??(3), and 0.3?|f2/f3|?0.9??(4).
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: June 23, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Toyoki Kon, Kazuteru Kawamura, Yasuharu Yamada, Tetsuya Yanai, Daichi Murakami
  • Publication number: 20190348488
    Abstract: A display unit includes a substrate, a first electrode, a second electrode, an organic layer, and an auxiliary electrically-conductive layer. The substrate includes a pixel region including a plurality of pixels and a peripheral region outside the pixel region. The first electrode is provided for each of the plurality of pixels in the pixel region on the substrate. The second electrode is opposed to the first electrode, and is provided common for the plurality of pixels. The organic layer is provided between the second electrode and the first electrode, and includes a light-emitting layer. The auxiliary electrically-conductive layer includes an organic electrically-conductive material, and the auxiliary electrically-conductive layer is disposed in the pixel region on the substrate and is electrically coupled to the second electrode.
    Type: Application
    Filed: December 4, 2018
    Publication date: November 14, 2019
    Inventors: Yasuhiro TERAI, Yasuharu SHINOKAWA, Jiro YAMADA, Atsuhito MURAI, Masahiko KONDO, Noriteru MAEDA
  • Publication number: 20190243115
    Abstract: An information acquisition apparatus includes an illuminating section, an image forming optical system, and an image pickup element. The image forming optical system includes an incidence-side lens unit having a positive refractive power, an aperture section, and an emergence-side lens unit having a positive refractive power. The incidence-side lens unit and the emergence-side lens unit include a plurality of positive lenses and at least one negative lens, and the following conditional expressions (1) to (9) are satisfied: ?6<?d<?0.8??(1) ?0.5<TL/|ENPL|<3.0??(2) ?1.5<TL/|EXPL|<0.5??(3) 0.001<|?Cd|/Sim1/2<0.05??(4) 0.04<|?dF|/Sim1/2<0.28??(5) 3.5<|?CF|/|?Cd|<38.0??(6) 0<|?SAd|/|?CF|<0.27??(7) 0<|?SAC|/|?CF|<0.16??(8) 0<|?SAF|/|?CF|<1.1??(9).
    Type: Application
    Filed: January 28, 2019
    Publication date: August 8, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Kento HARA, Tadashi HIRATA, Yasuharu YAMADA
  • Publication number: 20190196157
    Abstract: A zoom optical system includes a front-side lens unit, an intermediate lens unit, and a rear-side lens unit. The front-side lens unit includes a first front unit and a second front unit, and a distance between the first front unit and the second front unit is wider at a telephoto end than at a wide angle end. The intermediate lens unit includes a first intermediate unit and a second intermediate unit, and a distance between the first intermediate unit and the second intermediate unit is narrower at the telephoto end than at the wide angle end. A distance between the second intermediate unit and a lens unit adjacent to the second intermediate unit varies. The second intermediate unit moves at the time of focusing, and the following conditional expressions (1) and (2) are satisfied: 0.9?LTLT/LTLW?1.17??(1) 4.2?KMBT?20.0??(2).
    Type: Application
    Filed: December 23, 2018
    Publication date: June 27, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Kazuteru KAWAMURA, Yasuharu YAMADA, Toyoki KON, Yuki KUBOTA
  • Publication number: 20190033615
    Abstract: A zoom lens includes in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a first lens component in the predetermined lens unit moves perpendicularly with respect to an optical axis and is fixed at the time of zooming, and a second lens component is disposed, leaving an air space on an image side of the first lens component, and a sign of a refractive power of the second lens component differs from a sign of a refractive power of the first lens component, and the following conditional expression (1) is satisfied. 3.
    Type: Application
    Filed: October 2, 2018
    Publication date: January 31, 2019
    Inventors: Kazuteru KAWAMURA, Yasuharu YAMADA
  • Patent number: 10133085
    Abstract: A zoom lens includes in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a first lens component in the predetermined lens unit moves perpendicularly with respect to an optical axis and is fixed at the time of zooming, and a second lens component is disposed, leaving an air space on an image side of the first lens component, and a sign of a refractive power of the second lens component differs from a sign of a refractive power of the first lens component, and the following conditional expression (1) is satisfied. 3.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: November 20, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Kazuteru Kawamura, Yasuharu Yamada
  • Publication number: 20180017770
    Abstract: A zoom lens includes in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, a fourth lens unit having a negative refractive power, and a fifth lens unit having a positive refractive power. The first lens unit includes a positive lens, and the second lens unit includes a positive lens, and the following conditional expressions (1), (2), (3), and (4) are satisfied: ?0.015?Tp2G_min_p?0.015??(1), 70.3??d1G_max_p??(2), 1.76?nd2G_max_p?2.3??(3), and 0.3?|f2/f3|?0.9??(4).
    Type: Application
    Filed: September 27, 2017
    Publication date: January 18, 2018
    Applicant: OLYMPUS CORPORATION
    Inventors: Toyoki KON, Kazuteru KAWAMURA, Yasuharu YAMADA, Tetsuya YANAI, Daichi MURAKAMI
  • Patent number: 9678319
    Abstract: In a zoom lens of a fixed total length, at the time of changing the magnification from the wide-angle end toward the telephoto end, the first lens group is anchored while the second lens group is moved, and the third and fourth lens groups are moved so as to be located at the object side of the telephoto end relative to the wide-angle end, such that: the interval between the second and third lens groups is decreased at the telephoto end relative to the wide-angle end; the interval between the third and fourth lens groups is increased at the telephoto end relative to the wide-angle end; and the interval between the fourth and fifth lens groups is increased at the telephoto end relative to the wide-angle end, and at the time of focusing a near object point from a remote object point, the second lens group is moved.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: June 13, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Hirohiko Kimata, Yasuharu Yamada, Kenichi Nagasawa, Hiroshi Kodama, Toshio Takahashi, Kento Kokubu
  • Publication number: 20160349531
    Abstract: A zoom lens includes in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a first lens component in the predetermined lens unit moves perpendicularly with respect to an optical axis and is fixed at the time of zooming, and a second lens component is disposed, leaving an air space on an image side of the first lens component, and a sign of a refractive power of the second lens component differs from a sign of a refractive power of the first lens component, and the following conditional expression (1) is satisfied. 3.
    Type: Application
    Filed: March 31, 2016
    Publication date: December 1, 2016
    Inventors: Kazuteru Kawamura, Yasuharu Yamada
  • Patent number: 9507131
    Abstract: A teleconverter according to the present invention includes a master lens apparatus side mount portion, an image pickup apparatus side mount portion, and a converter lens section having a negative refractive power as a whole. The converter lens section includes in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and a third lens unit having a positive refractive power. The second lens unit is a lens unit in which, three lenses are cemented, and which includes in order from the object side to the image side, a first lens having a negative refractive power, a second lens having a positive refractive power, and a third lens having a negative refractive power. The teleconverter satisfies predetermined conditional expressions.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: November 29, 2016
    Assignee: Olympus Corporation
    Inventors: Yasuji Ogata, Yasuharu Yamada
  • Patent number: 9321017
    Abstract: A novel gas separation membrane having excellent gas permeability and gas separation performance, particularly carbon dioxide (CO2) permeability and excellent separation performance of carbon dioxide to methane (CH4) is provided. Moreover, a novel gas separation membrane having excellent heat resistance, chemical resistance and strength etc. is preferably provided. A gas separation membrane comprising a resin comprising a branched polybenzoxazole has excellent gas permeability and gas separation performance, particularly excellent carbon dioxide (CO2) permeability and excellent separation performance of carbon dioxide to methane (CH4). The resin comprising a branched polybenzoxazole preferably has a cross-linked structure. Furthermore, the resin comprising a branched polybenzoxazole is preferably a hybrid with silica.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: April 26, 2016
    Assignee: NAGOYA INDUSTRIAL SCIENCE RESEARCH INSTITUTE
    Inventors: Yasuharu Yamada, Mikako Takenaka, Tomoyuki Suzuki, Masako Miki
  • Publication number: 20150370053
    Abstract: In a zoom lens of a fixed total length, at the time of changing the magnification from the wide-angle end toward the telephoto end, the first lens group is anchored while the second lens group is moved, and the third and fourth lens groups are moved so as to be located at the object side of the telephoto end relative to the wide-angle end, such that: the interval between the second and third lens groups is decreased at the telephoto end relative to the wide-angle end; the interval between the third and fourth lens groups is increased at the telephoto end relative to the wide-angle end; and the interval between the fourth and fifth lens groups is increased at the telephoto end relative to the wide-angle end, and at the time of focusing a near object point from a remote object point, the second lens group is moved.
    Type: Application
    Filed: June 23, 2015
    Publication date: December 24, 2015
    Inventors: Hirohiko Kimata, Yasuharu Yamada, Kenichi Nagasawa, Hiroshi Kodama, Toshio Takahashi, Kento Kokubu
  • Patent number: 9110286
    Abstract: A reflecting telescope optical system comprises, a main reflecting mirror, a sub reflecting mirror which is disposed at a position facing a reflecting surface of the main reflecting mirror, and a plurality of lens units which is disposed at a position facing a reflecting surface of the sub reflecting mirror. The reflecting surface of the main reflecting mirror is a concave surface, and a reflecting area is formed to be ring-shaped. The reflecting surface of the main reflecting mirror and the reflecting surface of the sub reflecting mirror are mutually facing. The first operation is a movement for focusing at an object positioned between infinity and a near position, and the second operation is a reciprocating movement for changing the focused state after focusing. An amount of movement in the first operation is larger than an amount of movement in the second operation.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 18, 2015
    Assignee: OLYMPUS IMAGING CORP.
    Inventors: Akiyoshi Tochigi, Yasuharu Yamada
  • Publication number: 20150226943
    Abstract: A teleconverter according to the present invention includes a master lens apparatus side mount portion, an image pickup apparatus side mount portion, and a converter lens section having a negative refractive power as a whole. The converter lens section includes in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and a third lens unit having a positive refractive power. The second lens unit is a lens unit in which, three lenses are cemented, and which includes in order from the object side to the image side, a first lens having a negative refractive power, a second lens having a positive refractive power, and a third lens having a negative refractive power. The teleconverter satisfies predetermined conditional expressions.
    Type: Application
    Filed: February 10, 2015
    Publication date: August 13, 2015
    Inventors: Yasuji Ogata, Yasuharu Yamada
  • Patent number: 9097884
    Abstract: In a zoom lens of a fixed total length, at the time of changing the magnification from the wide-angle end toward the telephoto end, the first lens group is anchored while the second lens group is moved, and the third and fourth lens groups are moved so as to be located at the object side of the telephoto end relative to the wide-angle end, such that: the interval between the second and third lens groups is decreased at the telephoto end relative to the wide-angle end; the interval between the third and fourth lens groups is increased at the telephoto end relative to the wide-angle end; and the interval between the fourth and fifth lens groups is increased at the telephoto end relative to the wide-angle end, and at the time of focusing a near object point from a remote object point, the second lens group is moved.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: August 4, 2015
    Assignee: OLYMPUS IMAGING CORP.
    Inventors: Hirohiko Kimata, Yasuharu Yamada, Kenichi Nagasawa, Hiroshi Kodama, Toshio Takahashi, Kento Kokubu
  • Patent number: 9062214
    Abstract: A method of preparing a resin composition for hard coat, comprises: a first step of obtaining a polyfunctional (meth)acrylate monomer modifying agent by addition reaction between a modifying agent having a thiol group and a three- or more functional (meth)acrylate monomer to form a covalent bond between the thiol group and acryloyl group and/or methacryloyl group, and a second step of modifying metal oxide microparticles with the polyfunctional (meth)acrylate monomer modifying agent that is obtained from the first step.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: June 23, 2015
    Assignee: NIDEK CO., LTD.
    Inventors: Asaki Nakane, Shigehiro Koide, Yasuharu Yamada
  • Patent number: 8988783
    Abstract: A zoom lens comprising, in order from the object side to the image side a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, a fourth lens unit having a negative refractive power, and a fifth lens unit having a positive refractive power, wherein the first lens unit is located closest to the object side, the fifth lens unit is located closest to the image side, during zooming from the wide angle end to the telephoto end, the first lens unit, the second lens unit, the third lens unit, and the fourth lens unit move, the fifth lens unit is stationary, and the distances between the lens units vary, the third lens includes a positive lens, and the zoom lens satisfies the following condition (1): 72<?3p<110??(1).
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: March 24, 2015
    Assignee: Olympus Imaging Corp.
    Inventors: Yasuji Ogata, Yasuharu Yamada, Akiyoshi Tochigi, Keitaro Yokoyama
  • Publication number: 20150033945
    Abstract: A novel gas separation membrane having excellent gas permeability and gas separation performance, particularly carbon dioxide (CO2) permeability and excellent separation performance of carbon dioxide to methane (CH4) is provided. Moreover, a novel gas separation membrane having excellent heat resistance, chemical resistance and strength etc. is preferably provided. A gas separation membrane comprising a resin comprising a branched polybenzoxazole has excellent gas permeability and gas separation performance, particularly excellent carbon dioxide (CO2) permeability and excellent separation performance of carbon dioxide to methane (CH4). The resin comprising a branched polybenzoxazole preferably has a cross-linked structure. Furthermore, the resin comprising a branched polybenzoxazole is preferably a hybrid with silica.
    Type: Application
    Filed: January 22, 2013
    Publication date: February 5, 2015
    Applicant: NAGOYA INDUSTRIAL SCIENCE RESEARCH INSTITUTE
    Inventors: Yasuharu Yamada, Mikako Takenaka, Tomoyuki Suzuki, Masako Miki
  • Publication number: 20140185148
    Abstract: In a zoom lens of a fixed total length, at the time of changing the magnification from the wide-angle end toward the telephoto end, the first lens group is anchored while the second lens group is moved, and the third and fourth lens groups are moved so as to be located at the object side of the telephoto end relative to the wide-angle end, such that: the interval between the second and third lens groups is decreased at the telephoto end relative to the wide-angle end; the interval between the third and fourth lens groups is increased at the telephoto end relative to the wide-angle end; and the interval between the fourth and fifth lens groups is increased at the telephoto end relative to the wide-angle end, and at the time of focusing a near object point from a remote object point, the second lens group is moved.
    Type: Application
    Filed: December 24, 2013
    Publication date: July 3, 2014
    Applicant: OLYMPUS IMAGING CORP.
    Inventors: Hirohiko KIMATA, Yasuharu YAMADA, Kenichi NAGASAWA, Hiroshi KODAMA, Toshio TAKAHASHI, Kento KOKUBU
  • Patent number: 8767310
    Abstract: The invention provides a zoom lens, characterized by comprising, a zoom lens, which comprises, in order from an object side thereof: a first lens group of negative refracting power, a second lens group of positive refracting power, a third lens group of negative refracting power, and a fourth lens group of positive refracting power, wherein: upon zooming from a wide-angle end to a telephoto end of the zoom lens, a separation between the respective lens groups changes, upon focusing from a focusing-on-infinity state to a close-range focusing state, the third lens group moves in an optical axis direction, and the conditions (1) and (2) are satisfied at the wide-angle end.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: July 1, 2014
    Assignee: Olympus Imaging Corp.
    Inventors: Yasuji Ogata, Yasuharu Yamada, Toshio Takahashi, Toyoki Kon