Patents by Inventor Takuya Tanaka

Takuya Tanaka 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: 10572993
    Abstract: An information processing apparatus and method are disclosed, each of which: using a set of normal data, learns a first model for determining the normal data; sets, out of a plurality of abnormality candidate areas, the abnormality candidate areas selected by a user as correct data and the abnormality candidate areas not selected by the user as incorrect data, to learn a second model for identifying the correct data and the incorrect data, each abnormality candidate area indicating a candidate area of an abnormality and detected based on the first model from each of a plurality of captured images; obtains the captured images; detects the abnormality candidate areas from the respective captured images, using the first model; determines whether the abnormality candidate areas detected belong to the correct data or the incorrect data, using the second model; and controls to output a determination.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: February 25, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Takuya Tanaka, Ryosuke Kasahara
  • Publication number: 20200050963
    Abstract: A learning device is configured to perform learning of a decision tree. The learning device includes a branch score calculator, and a scaling unit. The branch score calculator is configured to calculate a branch score used for determining a branch condition for a node of the decision tree based on a cumulative sum of gradient information corresponding to each value of a feature amount of learning data. The scaling unit is configured to perform scaling on a value related to the cumulative sum used for calculating the branch score by the branch score calculator to fall within a numerical range with which the branch score is capable of being calculated.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 13, 2020
    Inventors: Takuya TANAKA, Ryosuke KASAHARA
  • Publication number: 20200050970
    Abstract: A learning device is configured to perform learning of a decision tree. The learning device includes a gradient output unit and a branch score calculator. The gradient output unit is configured to output a cumulative sum of gradient information corresponding to each value of a feature amount of learning data. The branch score calculator is configured to calculate a branch score used for determining a branch condition for a node of the decision tree, from the cumulative sum without using a dividing circuit.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 13, 2020
    Inventors: Takuya Tanaka, Ryosuke Kasahara
  • Publication number: 20200050933
    Abstract: A learning device is configured to perform learning of a decision tree, and includes: a plurality of learning units each corresponding to a data memory of a plurality of data memories, and being configured to perform learning at a first node using learning data acquired by using first addresses related to a storage destination of the learning data corresponding to the first node of the decision tree in the data memory, and output a second address related to a storage destination of each piece of the learning data branched from the first node; and a plurality of managers each corresponding to a learning unit of the plurality of learning units, and being configured to calculate third addresses related to storage destinations of learning data corresponding to second nodes being next nodes of the first node using the first addresses and the second address output from the learning unit.
    Type: Application
    Filed: August 1, 2019
    Publication date: February 13, 2020
    Inventors: Takuya Tanaka, Ryosuke Kasahara
  • Publication number: 20200007745
    Abstract: A zoom lens has, in order from an object side, a focusing unit including a focusing lens group moving for focusing, a variable magnification unit including at least two variable magnification lens groups moving while changing a mutual interval for variable magnification, an aperture stop, and an image forming unit including an image forming lens group. The image forming unit consists of, in order from the object side, an M1 lens group, an M2N lens group, and an M3 lens group. The M2N lens group is replaceable with an M2E lens group that enlarges an image forming magnification. The M2E lens group satisfies predetermined conditional expressions (1) to (4).
    Type: Application
    Filed: June 25, 2019
    Publication date: January 2, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Takuya TANAKA, Takuya TANAKA
  • Publication number: 20200004000
    Abstract: A zoom lens consists of a positive first lens group that is fixed during zooming, a negative second lens group that moves during zooming, a positive third lens group that moves during zooming, a positive fourth lens group that moves during zooming, and a positive fifth lens group that is fixed during zooming. During zooming from a wide angle end to a telephoto end, the fourth lens group moves from an image side to an object side, the second lens group and a composite group consisting of the third lens group and the fourth lens group pass through points where respective lateral magnifications are ?1 at the same time, the fifth lens group consists of a negative fifth A lens group that moves during anti-shake operation, and a positive fifth B lens group that is fixed during the anti-shake operation, and the lateral magnification of the fifth A lens group is negative.
    Type: Application
    Filed: June 25, 2019
    Publication date: January 2, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Shinkichi IKEDA, Takuya TANAKA
  • Publication number: 20190378046
    Abstract: A learning and discrimination device configured to perform learning by gradient boosting, including: a histogram memory unit configured to store, for each value of a feature amount, a histogram obtained by integrating gradient information corresponding to the value in sample data; a category accumulated gradient calculator configured to calculate a histogram corresponding to a value of the feature amount corresponding to a threshold for the feature amount as a cumulative sum of the gradient information; a non-category accumulated gradient calculator configured to calculate, as a cumulative sum of the gradient information, a sum of a histogram corresponding to a value of the feature amount that is classified using a classification method with the threshold different from the category accumulated gradient calculator; and a cumulative sum selector configured to output the cumulative sum calculated by the category accumulated gradient calculator or the non-category accumulated gradient calculator.
    Type: Application
    Filed: May 29, 2019
    Publication date: December 12, 2019
    Inventors: Takuya Tanaka, Ryosuke Kasahara
  • Patent number: 10444479
    Abstract: The zoom lens consists of, in order from an object side: a first lens group that has a positive refractive power; a second lens group that has a positive refractive power; a third lens group that has a negative refractive power; a fourth lens group; and a fifth lens group that has a positive refractive power. The first lens group and the fifth lens group remain stationary with respect to an image plane during zooming. The second lens group, the third lens group, and the fourth lens group are moved by changing distances between the lens groups and adjacent groups in a direction of an optical axis during zooming, and are positioned to be closer to the image side at a telephoto end than at a wide-angle end. Conditional Expression (1) is satisfied. 0.8<pr1/f1<2.6??(1).
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: October 15, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Takuya Tanaka, Masaru Yonezawa
  • Publication number: 20190287023
    Abstract: A learning classification device includes a data memory, a learning unit, and a classification unit. The data memory is configured to store training data for learning a decision tree. The learning unit is configured to read a plurality of feature quantities included in the training data from the data memory by single access and derive data of a node based on the plurality of feature quantities, to learn the decision tree. The classification unit is configured to determine where the training data read from the data memory is to be split to from the node, based on the data of the node derived by the learning unit.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 19, 2019
    Inventors: Ryosuke Kasahara, Takuya Tanaka
  • Patent number: 10365454
    Abstract: The zoom lens consists of, in order from an object side: a first lens group that remains stationary during zooming and has a positive refractive power; at least two movable lens groups that are moved during zooming; and a final lens group that remains stationary during zooming and has a positive refractive power. The final lens group consists of, in order from the object side, a front group and a rear group. The front group has, successively in order from a position closest to the object side, two or less positive lenses and one first front group negative lens, and a second front group negative lens that is different from the first front group negative lens at a position closest to an image side and is concave toward the image side. An aperture stop is provided between the movable lens group and the first front group negative lens. The rear group consists of a positive lens and a rear group negative meniscus lens that is convex toward the image side.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: July 30, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Takuya Tanaka, Shinkichi Ikeda
  • Publication number: 20190200604
    Abstract: The present invention is directed to an aqueous herbicidal composition containing flumioxazin, pyroxasulfone, hydroxyethyl cellulose, and magnesium aluminum silicate. The present invention is further directed to a method of controlling weeds by applying compositions of the present invention.
    Type: Application
    Filed: December 20, 2018
    Publication date: July 4, 2019
    Inventor: Takuya Tanaka
  • Patent number: 10274698
    Abstract: The zoom lens consists of, in order from an object side: a first lens group that remains stationary during zooming and has a positive refractive power; at least two movable lens groups that are moved during zooming; and a final lens group that remains stationary during zooming and has a positive refractive power. The first lens group consists of, in order from the object side, a first-a lens group that remains stationary during focusing and has a negative refractive power, a first-b lens group that is moved during focusing and has a positive refractive power, and a first-c lens group that remains stationary during focusing and has a positive refractive power. The first-a lens group consists of, in order from the object side, a first lens that has a negative refractive power, a second lens that is convex toward the object side and has a positive refractive power, and a third lens that has a negative refractive power.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: April 30, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Shinkichi Ikeda, Takuya Tanaka
  • Patent number: 10269101
    Abstract: A restoration processing unit performs a restoration process based on an optical transfer function of an optical system for a target image. The entire angle of view of the optical system is greater than 90 degrees. A light amount evaluation region of the optical system is a region in which a distance from the center of an image formation plane is not less than 80% of half of the length of a diagonal line of an imaging surface of an imaging element. When a first evaluation wavelength is used, the ratio of the amount of light in the light amount evaluation region to the amount of light in a region of the optical system corresponding to the center of the image formation plane is not less than 25%. When a second evaluation wavelength is used, the value of the MTF of the optical system acquired at half of the Nyquist frequency of the imaging element is not less than 15%.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: April 23, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Takuya Tanaka, Yousuke Naruse
  • Publication number: 20190116394
    Abstract: The cooking control device is installed on a moving object and is configured to communicably connect to a plurality of content display devices and one or more cooking apparatuses, each of the content display devices configured to playback content on a screen. The cooking control device comprises a processor and a transmitter. The processor receives content playback information for the plurality of content display devices respectively, determines one or more of the plurality of content display devices that finish playback of content within a given time based on the content playback information, and produces a preparation/cooking instruction for the one or more cooking apparatuses according to a number of the one or more of the plurality of content display devices. The transmitter transmits the preparation/cooking instruction to the one or more cooking apparatuses.
    Type: Application
    Filed: October 11, 2018
    Publication date: April 18, 2019
    Inventors: Satoshi KINOSHITA, Masaharu MATSUMOTO, Tsutomu UENOYAMA, Takuya TANAKA, Yuta HACHIRI, Yumiko NAKAYAMA
  • Publication number: 20190098893
    Abstract: The present invention is directed to an aqueous herbicidal composition containing one or more low water solubility herbicides, hydroxyethyl cellulose, and an inorganic compound selected from the group consisting of silicon dioxide, aluminum oxide, magnesium aluminum silicate, attapulgite and mixtures thereof. The present invention is further directed to a method of controlling weeds by applying compositions of the present invention.
    Type: Application
    Filed: September 25, 2018
    Publication date: April 4, 2019
    Inventors: Takuya Tanaka, Ke Zhou
  • Publication number: 20190064489
    Abstract: The zoom lens consists of, in order from an object side, a first lens group having a positive power, a second lens group having a positive power, a third lens group having a negative power, a fourth lens group having a negative power, and a fifth lens group having a positive power. During zooming, the first lens group and the fifth lens group remain stationary, and the other lens groups move. The following conditional expression relating to a focal length f1 of the first lens group and a focal length f3 of the third lens group is satisfied: ?10<f1/f3<?3.5.
    Type: Application
    Filed: August 21, 2018
    Publication date: February 28, 2019
    Applicant: FUJIFILM Corporation
    Inventor: 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: 10168514
    Abstract: The zoom lens consists of, in order from the object side, a first lens group that has a positive refractive power and remains stationary during zooming, a plurality of movable lens groups that move during zooming, and a final lens group that has a positive refractive power and remains stationary during zooming. The first lens group consists of, in order from the object side, a first lens group front group that has a negative refractive power and remains stationary during focusing, a first lens group intermediate group that has a positive refractive power and moves during focusing, and a first lens group rear group that has a positive refractive power. The first lens group front group has, successively in order from a position closest to the object side, a negative meniscus lens that is concave toward the image side and a negative lens.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: January 1, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Masaru Yonezawa, Takuya Tanaka