Patents by Inventor Motoari Ota

Motoari Ota 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: 11327280
    Abstract: The zoom lens consists of, in order from the object side, a positive first lens group that does not move during zooming, a negative second lens group that moves during zooming, a negative third lens group that moves during zooming, at least one lens group that moves during zooming, and a rear group that does not move during zooming. All distances between the lens groups adjacent to each other change during zooming. The zoom lens satisfies predetermined conditional expressions.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: May 10, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Motoari Ota, Masaru Yonezawa, Takuya Tanaka
  • Patent number: 11280987
    Abstract: The zoom lens, in order from the object side, a positive first lens group that does not move during zooming, a negative second lens group that moves during zooming, a negative third lens group that moves during zooming, at least one lens group that moves during zooming, and a rear group that does not move during zooming. All distances between the lens groups adjacent to each other change during zooming. The zoom lens satisfies predetermined conditional expressions.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: March 22, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Motoari Ota, Masaru Yonezawa, Takuya Tanaka
  • Patent number: 11187877
    Abstract: A zoom lens consists of, in order from an object side, a focusing group, a zoom group, and a subsequent group. The focusing group consists of, in order from the object side, a front focusing group which does not move with respect to the image plane during zooming and focusing, a middle focusing group which consists of one or two positive lens groups each moving during focusing, and a rear focusing group which consists of a negative lens group moving during zooming and focusing. The rear focusing group has a zoom range in which the amount of movement during focusing changes in accordance with the zoom position and the rear focusing group moves to the image side during focusing from the object at infinity to the closest object. Predetermined conditional expressions relating to the amount of movement of the rear focusing group are satisfied.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: November 30, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Masaru Yonezawa, Motoari Ota
  • Publication number: 20210088764
    Abstract: A zoom lens consists of, in order from an object side, a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, and a positive fifth lens group. During zooming, the first lens group and the fifth lens group are not moved, and the second lens group, the third lens group, and the fourth lens group are moved. The first lens group consists of one negative lens and five positive lenses in order from the object side to an image side. Predetermined conditional expressions related to a refractive index, an Abbe number, and a partial dispersion ratio of the negative lens of the first lens group are satisfied.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 25, 2021
    Applicant: FUJIFILM Corporation
    Inventor: Motoari OTA
  • Publication number: 20210088763
    Abstract: A zoom lens consists of, in order from an object side, a positive first lens group, a negative moving lens group, a first positive moving lens group, a second positive moving lens group, and a subsequent lens group including a stop. During zooming, the first lens group is not moved, and the negative moving lens group, the first positive moving lens group, and the second positive moving lens group are moved. The first positive moving lens group consists of a positive single lens and a cemented lens obtained by cementing a positive lens and a negative lens. The zoom lens satisfies a predetermined conditional expression.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 25, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Masaru YONEZAWA, Motoari OTA
  • Patent number: 10838180
    Abstract: A zoom lens consists of, in order from an object side, a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, and a positive fifth lens group. During zooming, the first lens group is fixed, and distances between the respective lens groups change in predetermined manners. The first lens group consists of, in order from the object side, a negative lens group fixed during focusing, a positive lens group movable during focusing, and a positive lens group fixed during focusing. The lens group has on the most image side four lenses of, in order from the object side, a positive lens, a cemented lens in which a negative meniscus lens having a convex surface facing the object side and a positive lens are cemented, and a positive meniscus lens having a convex surface facing the object side.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: November 17, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Takuya Tanaka, Motoari Ota
  • Patent number: 10746976
    Abstract: A zoom lens consists of, in order from an object side, a positive first lens group fixed relative to the image surface during zooming, at least two movable lens groups including a negative second lens group being adjacent to the first lens group, the at least two movable lens groups being movable by changing a distance in an optical-axis direction to an adjacent group during zooming; and a final lens group arranged on the most image side and fixed relative to the image surface during zooming. The first lens group has, continuously in order from the most object side, a first negative lens having a concave surface facing an image side, a second negative lens, and a third positive lens. A predetermined conditional expression relating to the first lens group is satisfied.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: August 18, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Motoari Ota, Takuya Tanaka
  • Patent number: 10690894
    Abstract: A zoom lens consists of, in order from an object side, a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, and a positive fifth lens group. During zooming from a wide angle end to a telephoto end, the first lens group is fixed relative to an image surface, and distances between the respective lens groups change in predetermined manners. The second lens group consists of predetermined four lens components.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: June 23, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Takuya Tanaka, Motoari Ota
  • Publication number: 20200064604
    Abstract: A zoom lens consists of, in order from an object side, a focusing group, a zoom group, and a subsequent group. The focusing group consists of, in order from the object side, a front focusing group which does not move with respect to the image plane during zooming and focusing, a middle focusing group which consists of one or two positive lens groups each moving during focusing, and a rear focusing group which consists of a negative lens group moving during zooming and focusing. The rear focusing group has a zoom range in which the amount of movement during focusing changes in accordance with the zoom position and the rear focusing group moves to the image side during focusing from the object at infinity to the closest object. Predetermined conditional expressions relating to the amount of movement of the rear focusing group are satisfied.
    Type: Application
    Filed: August 15, 2019
    Publication date: February 27, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Masaru YONEZAWA, Motoari OTA
  • Publication number: 20200064606
    Abstract: The zoom lens consists of, in order from the object side, a positive first lens group that does not move during zooming, a negative second lens group that moves during zooming, a negative third lens group that moves during zooming, at least one lens group that moves during zooming, and a rear group that does not move during zooming. All distances between the lens groups adjacent to each other change during zooming. The zoom lens satisfies predetermined conditional expressions.
    Type: Application
    Filed: August 15, 2019
    Publication date: February 27, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Motoari OTA, Masaru YONEZAWA, Takuya TANAKA
  • Publication number: 20200064602
    Abstract: The zoom lens, in order from the object side, a positive first lens group that does not move during zooming, a negative second lens group that moves during zooming, a negative third lens group that moves during zooming, at least one lens group that moves during zooming, and a rear group that does not move during zooming. All distances between the lens groups adjacent to each other change during zooming. The zoom lens satisfies predetermined conditional expressions.
    Type: Application
    Filed: August 15, 2019
    Publication date: February 27, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Motoari OTA, Masaru YONEZAWA, Takuya TANAKA
  • Publication number: 20190025559
    Abstract: A zoom lens consists of, in order from an object side, a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, and a positive fifth lens group. During zooming from a wide angle end to a telephoto end, the first lens group is fixed relative to an image surface, and distances between the respective lens groups change in predetermined manners. The second lens group consists of predetermined four lens components.
    Type: Application
    Filed: September 24, 2018
    Publication date: January 24, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Takuya TANAKA, Motoari OTA
  • Publication number: 20190025556
    Abstract: A zoom lens consists of, in order from an object side, a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, and a positive fifth lens group. During zooming, the first lens group is fixed, and distances between the respective lens groups change in predetermined manners. The first lens group consists of, in order from the object side, a negative lens group fixed during focusing, a positive lens group movable during focusing, and a positive lens group fixed during focusing. The lens group has on the most image side four lenses of, in order from the object side, a positive lens, a cemented lens in which a negative meniscus lens having a convex surface facing the object side and a positive lens are cemented, and a positive meniscus lens having a convex surface facing the object side.
    Type: Application
    Filed: September 24, 2018
    Publication date: January 24, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Takuya TANAKA, Motoari OTA
  • Publication number: 20190025557
    Abstract: A zoom lens consists of, in order from an object side, a positive first lens group fixed relative to the image surface during zooming, at least two movable lens groups including a negative second lens group being adjacent to the first lens group, the at least two movable lens groups being movable by changing a distance in an optical-axis direction to an adjacent group during zooming; and a final lens group arranged on the most image side and fixed relative to the image surface during zooming. The first lens group has, continuously in order from the most object side, a first negative lens having a concave surface facing an image side, a second negative lens, and a third positive lens. A predetermined conditional expression relating to the first lens group is satisfied.
    Type: Application
    Filed: September 26, 2018
    Publication date: January 24, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Motoari OTA, Takuya TANAKA
  • Patent number: 9766430
    Abstract: An imaging lens is constituted essentially by six lenses, including: a first lens having a positive refractive power and is of a meniscus shape with a convex surface toward the object side; a second lens having a negative refractive power; a third lens; a fourth lens having a positive refractive power; a fifth lens having a negative refractive power and a concave surface toward the image side; and a sixth lens of a biconcave shape, provided in this order from the object side. The imaging lens satisfies a predetermined conditional formula.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: September 19, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Motoari Ota, Masato Kondo
  • Patent number: 9720210
    Abstract: An imaging lens consisting essentially of six lenses, composed of, in order from the object side, a first lens having a positive refractive power with a convex surface on the object side, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power with a concave surface on the image side, and a sixth lens having a negative refractive power, in which predetermined conditional expressions are satisfied.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: August 1, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Motoari Ota
  • Patent number: 9557531
    Abstract: An imaging lens, substantially consisting of six lenses, composed of a first lens having a positive refractive power and a meniscus shape with a convex surface on the object side, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power and a biconcave shape, and a sixth lens having a negative refractive power, disposed in order from the object side.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: January 31, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Sumihiro Nishihata, Motoari Ota
  • Patent number: 9488799
    Abstract: An imaging lens substantially consists of six lenses consisting of, in order from the object side: a first lens having a biconvex shape; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a positive refractive power; a fifth lens having a negative refractive power and having a concave surface toward the object side; and a sixth lens having a negative refractive power and having a concave surface toward the object side.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: November 8, 2016
    Assignee: FUJIFILM Corporation
    Inventor: Motoari Ota
  • Patent number: 9383546
    Abstract: An imaging lens is substantially constituted by six lenses, including: a first lens having a positive refractive power and a convex surface toward the object side; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens having a positive refractive power; a fifth lens having a negative refractive power; and a sixth lens having a biconcave shape, provided in this order from the object side.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: July 5, 2016
    Assignee: FUJIFILM Corporation
    Inventor: Motoari Ota
  • Patent number: 9335515
    Abstract: An imaging lens with five lenses arranged as, in order from the object side, a first lens with a positive refractive power and a meniscus shape with a convex surface directed toward the object side, a second lens with a biconcave shape, a third lens with a negative refractive power and a meniscus shape with a convex surface toward the image side, a fourth lens with a positive refractive power, and a fifth lens with a negative refractive power, where an image-side surface of the fifth lens includes a concave surface and at least one inflection point, and a predetermined conditional expression is satisfied that achieves a high imaging performance from a central angle of view to a peripheral angle of view, while achieving reduction of an entire length of the lens.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: May 10, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Motoari Ota, Takuya Tanaka, Sumihiro Nishihata, Michio Cho