Patents by Inventor Shinichiro Saito

Shinichiro Saito 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: 11095712
    Abstract: A computer system for controlling data linkage achieves higher rate data transfer between a first system that performs operations and a second system that acquires data regarding the operations reduces influence on the operations and between the systems. The first system includes a storage unit that manages resources storing data and a control unit that controls data transfer and the second system includes a data acquisition unit. The control unit calculates cost that represents a load of the first system with respect to each of multiple data transfer schemes, determines an applicable data transfer scheme based on the cost, and notifies the second system of that scheme. The data acquisition unit manages states associated with the determined data transfer scheme and sends a request to acquire data from resources based on the determined data transfer scheme and the states.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: August 17, 2021
    Assignee: HITACHI, LTD.
    Inventors: Daisuke Ito, Shinichiro Saito
  • Patent number: 11073684
    Abstract: A zoom lens 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 rear lens group which includes at least one lens unit and has a positive refractive power as a whole. Distances between the adjacent lens units change during zooming. The rear lens group includes a lens P1 that has a positive refractive power and moves at image stabilization so as to have a component perpendicular to the optical axis. The shape factor SFP1 of the lens P1, a curvature radius R1P1 of a lens surface of the lens P1 on the object side, and a curvature radius R2P1 of a lens surface of the lens P1 on the image side are appropriately determined.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: July 27, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shinichiro Saito
  • Publication number: 20210227021
    Abstract: A computer system for controlling data linkage achieves higher rate data transfer between a first system that performs operations and a second system that acquires data regarding the operations reduces influence on the operations and between the systems. The first system includes a storage unit that manages resources storing data and a control unit that controls data transfer and the second system includes a data acquisition unit. The control unit calculates cost that represents a load of the first system with respect to each of multiple data transfer schemes, determines an applicable data transfer scheme based on the cost, and notifies the second system of that scheme. The data acquisition unit manages states associated with the determined data transfer scheme and sends a request to acquire data from resources based on the determined data transfer scheme and the states.
    Type: Application
    Filed: September 15, 2020
    Publication date: July 22, 2021
    Applicant: HITACHI, LTD.
    Inventors: Daisuke ITO, Shinichiro SAITO
  • Patent number: 11063873
    Abstract: A data collection server that collects and converts data has a data processor that executes shaping processes to shape collected data, sets a data processing flow based on the shaping processes, sets information of an execution environment of the shaping processes and converts the processing flow based on the information of the execution environment. The processor accepts setting inputs of first and second flags before and after the plurality of shaping processes and performs an integrated shaping process for collectively executing the plurality of shaping processes between the first and second flags when set. The processor also updates information of the execution environment based on execution contents of the integrated shaping process.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: July 13, 2021
    Assignee: HITACHI, LTD.
    Inventors: Takamasa Arai, Tsutomu Konno, Shinichiro Saito
  • Patent number: 11048068
    Abstract: An optical system is constituted of a first lens unit having a positive refractive power, a second lens unit having a positive refractive power and moving when focusing is performed, and a third lens unit which are arranged in this order from an object side to an image side, and distances between neighboring lens units are changed when focusing is performed. In the optical system, a back focus, arrangement of the second lens unit, and the like are appropriately set.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: June 29, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shinichiro Saito, Makoto Nakahara, Suguru Inoue, Akira Mizuma, Masakazu Yamagishi
  • Patent number: 11042012
    Abstract: An optical system includes a first lens unit B1 having a positive refractive power, a second lens unit B2, and a third lens unit B3 disposed in order from an object side to an image side. The second lens unit B2 moves in focusing so that an interval between adjacent lens units among the first, second, and third lens units changes. The first lens unit B1 includes a positive lens G1p disposed closest to the object side and a negative lens G1n being a closest negative lens with respect to the object side. The optical system satisfies a predetermined condition.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: June 22, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shinichiro Saito, Makoto Nakahara, Suguru Inoue, Akira Mizuma, Masakazu Yamagishi
  • Publication number: 20210149165
    Abstract: A converter lens (RCL) has a negative refractive power, which is disposed on an image side of a master lens (ML) to make a focal length of an entire system longer than that of the master lens alone. The converter lens comprises a most image-side lens element (LT) disposed closest to an image side in the converter lens, wherein the most image-side lens element has a lens surface having a convex shape toward an image side, a lens disposed closest to an image side in the converter lens has a positive refractive power, and mN<mP and 0.0?LR2/AR2<1.0 are satisfied.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 20, 2021
    Inventors: Shinichiro Saito, Hiroki Ebe
  • Publication number: 20210088762
    Abstract: An optical system LO includes in this order from an object side to an image side, a first lens unit FL, an aperture stop SP, and a second lens unit RL having a positive refractive power. The first lens unit FL includes at least three negative lenses including in order from the object side to the image side, negative lenses (G1N), (G2N), and (G3N). At least one lens surface of the negative lenses (G1N), (G2N), and (G3N) is an aspherical surface that satisfies a predetermined conditional inequality.
    Type: Application
    Filed: September 16, 2020
    Publication date: March 25, 2021
    Inventor: Shinichiro Saito
  • Patent number: 10935755
    Abstract: Provided is an optical system including, 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 configured to move during focusing; and a third lens unit. An interval between each pair of adjacent lens units is changed during focusing. The optical system includes an aperture stop. The first lens unit includes at least three positive lenses including a positive lens (G1P) arranged closest to the object side. A distance LD on an optical axis from a lens surface closest to the object side of the optical system to an image plane, a focal length “f” of the optical system, a refractive index ndG1P of a material of the positive lens (G1P), and an Abbe number ?dG1P of the material of the positive lens (G1P) are each appropriately set.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: March 2, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shinichiro Saito, Makoto Nakahara
  • Patent number: 10895714
    Abstract: An optical system used in an imaging apparatus includes an optical element. In a case where the optical element is disposed on a magnification side with respect to an intersection point of an optical axis and a chief paraxial ray, the optical element is a negative lens, and in a case where the optical element is disposed on a reduction side with respect to the intersection point, the optical element is a positive lens. The optical element is configured to satisfy all of the following conditional expressions: 30??d?40 1.225?[nd?(14.387/?d)]?1.276 0.4300?[?gF?(2.9795/?d)]?0.5010, where ?d represents an Abbe number of the optical element, ?gF is a partial dispersion ratio of the optical element for g-line and F-line, and nd is a refractive index of the optical element for d-line.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: January 19, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shunji Iwamoto, Shinichiro Saito, Satoshi Maetaki, Takahiro Hatada, Suguru Inoue
  • Patent number: 10864820
    Abstract: An object of the present invention is to provide a virtual image display optical system that is capable of substantially simultaneously displaying virtual images at a plurality of distances even with a simple configuration, and an image display device using the virtual image display optical system. A virtual image display optical system (30) according to the present invention is provided with: a display element (11); a projection optical system (15) that enlarges an image formed on the display element (11); a diffusing screen (16) that has a diffusing function, and is positioned on the light emission side of the projection optical system (15); and a virtual image forming optical system (17) that converts an image on the diffusing screen (16) into a virtual image, wherein the virtual image display optical system (30) is further provided with a positioning changing device (62) that changes a position of the diffusing screen (16).
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: December 15, 2020
    Assignee: Konica Minolta, Inc.
    Inventors: Kentarou Nakamura, Norihide Yamada, Eiji Nomura, Junji Hashimura, Shinichiro Saito
  • Publication number: 20200314018
    Abstract: A data collection server that collects and converts data has a data processor that executes shaping processes to shape collected data, sets a data processing flow based on the shaping processes, sets information of an execution environment of the shaping processes and converts the processing flow based on the information of the execution environment. The processor accepts setting inputs of first and second flags before and after the plurality of shaping processes and performs an integrated shaping process for collectively executing the plurality of shaping processes between the first and second flags when set. The processor also updates information of the execution environment based on execution contents of the integrated shaping process.
    Type: Application
    Filed: September 12, 2019
    Publication date: October 1, 2020
    Inventors: Takamasa ARAI, Tsutomu KONNO, Shinichiro SAITO
  • Publication number: 20200310088
    Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a negative refractive power, and a rear group having a positive refractive power as a whole including at least one lens unit. During zooming from a wide-angle end to a telephoto end, a distance between adjacent lens units changes. The first lens unit includes at least three negative single lenses, and a predetermined condition is satisfied.
    Type: Application
    Filed: March 19, 2020
    Publication date: October 1, 2020
    Inventor: Shinichiro Saito
  • Publication number: 20200293510
    Abstract: It is provided an information linkage system, which is configured to allow a plurality of organizations to register and update data, and is formed of a computer including: a calculation device configured to execute predetermined calculation processing, to thereby implement the following functional modules; and a storage device accessible to the calculation device, the information linkage system comprising: an information linkage control module configured to receive a registration request for data, an update request for data, and an acquisition request for data from a plurality of external systems; an information linkage database in which data is allowed to be registered and updated; an information linkage database access module configured to access the information linkage database in response to a request received by the information linkage control module; and a reliability calculation module configured to calculate reliability information relating to the data stored in the information linkage database.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 17, 2020
    Inventors: Makoto Fuchiwaki, Jiyun Yoshihara, Shinichiro Saito, Tomoya Kuga, Kozo Kato
  • Publication number: 20200271903
    Abstract: A converter lens according to an exemplary embodiment of the present invention is a converter lens that has a negative refractive power and increases a focal length of an entire system. The converter lens includes a front group having a positive refractive power and a rear group having a negative refractive power, and the front group is a lens unit having a combined refractive power having a maximum positive refractive power in a case where the combined refractive power is obtained by combining a refractive power of each lens in order from the lens closest to an object toward an image side. At this time, a focal length of the front group, a focal length of the converter lens, and a lateral magnification of the converter lens when the converter lens is disposed on an image side of a master lens are determined as appropriate.
    Type: Application
    Filed: February 20, 2020
    Publication date: August 27, 2020
    Inventors: Hiroki Ebe, Shinichiro Saito
  • Publication number: 20200271904
    Abstract: A converter lens has negative refractive power, and is disposed on an image side of a master lens so that a focal length of an entire system becomes greater than a focal length of the master lens alone. The converter lens includes a first lens element closest to an object and a second lens element next to an image side of the first lens element with a space between the first lens element and the second lens element. A focal length of the converter lens, a focal length of an air lens formed by the first lens element and the second lens element, the shape of an image-side lens surface of the first lens element, and the shape of an object-side lens surface of the second lens element are determined as appropriate.
    Type: Application
    Filed: February 20, 2020
    Publication date: August 27, 2020
    Inventors: Shinichiro Saito, Hiroki Ebe
  • Patent number: 10746974
    Abstract: An optical system includes a positive lens G1 arranged closest to the object side and a positive lens G2 arranged closest to the object side among positive lenses at the image side of the positive lens G1. The optical system satisfies a predetermined condition.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: August 18, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shinichiro Saito
  • Patent number: 10718929
    Abstract: Provided is an optical system including, 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 configured to move during focusing; and a third lens unit, wherein an interval between each pair of adjacent lens units is changed during focusing, wherein the first lens unit includes a positive lens arranged closest to the object side and an aperture stop, wherein the second lens unit consists of one negative lens, and wherein a distance on an optical axis from a lens surface closest to the object side in the optical system to an image plane, a focal length of the optical system, a refractive index of a material of the one negative lens, and an Abbe number of the material of the one negative lens are appropriately set.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: July 21, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shinichiro Saito, Makoto Nakahara
  • Publication number: 20200103647
    Abstract: Provided is an optical system consisting of, in order from an object side to an image side: a first lens unit having a negative refractive power; an aperture stop; and a second lens unit having a positive refractive power, in which each of the first lens unit and the second lens unit includes a negative lens. A focal length (fG1N) of a negative lens (G1N) arranged closest to the object side in the first lens unit, a focal length (fGLN) of a negative lens (GLN) having a largest negative refractive power in the second lens unit, a focal length (f) of the optical system, a focal length (f1) of the first lens unit, and other factors are appropriately set.
    Type: Application
    Filed: September 30, 2019
    Publication date: April 2, 2020
    Inventor: Shinichiro Saito
  • Publication number: 20200055395
    Abstract: An object of the present invention is to provide a virtual image display optical system that is capable of substantially simultaneously displaying virtual images at a plurality of distances even with a simple configuration, and an image display device using the virtual image display optical system. A virtual image display optical system (30) according to the present invention is provided with: a display element (11); a projection optical system (15) that enlarges an image formed on the display element (11); a diffusing screen (16) that has a diffusing function, and is positioned on the light emission side of the projection optical system (15); and a virtual image forming optical system (17) that converts an image on the diffusing screen (16) into a virtual image, wherein the virtual image display optical system (30) is further provided with a positioning changing device (62) that changes a position of the diffusing screen (16).
    Type: Application
    Filed: October 30, 2017
    Publication date: February 20, 2020
    Inventors: Kentarou NAKAMURA, Norihide YAMADA, Eiji NOMURA, Junji HASHIMURA, Shinichiro SAITO