Patents by Inventor Takuji Hasegawa

Takuji Hasegawa 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: 11967160
    Abstract: Conventionally, a method in which pieces of point group information for use in position matching between a white line position detected by an object detection sensor and a white line position on a map are extracted from the white line positions according to a travel environment, has not been taken into account. In the present disclosure, a point group extraction condition is changed according to change in the travel environment so that: a process of position matching that exhibits robustness with respect to change in the travel environment can be realized; and an own position and a white line position existing at a long distance from an own vehicle can be detected with high accuracy.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: April 23, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takefumi Hasegawa, Tadahiko Urano, Takuji Morimoto, Kyosuke Konishi, Kentaro Ishikawa, Taku Umeda
  • Patent number: 9496061
    Abstract: The invention provides radiographic image conversion panels which ensure a high image quality (brightness) of the obtainable radiographic images and have excellent moisture proofness. The radiographic image conversion panel includes a photoelectric conversion element and a scintillator layer including a phosphor and one or more activators, the phosphor being in the form of columnar crystal. The activator concentration in the thickness direction of the scintillator layer gives a profile curve having two or more peaks. The amount of activator or activators present in a region of the scintillator layer extending over a thickness of 100 ?m from a principal surface of the scintillator layer opposed to the photoelectric conversion element is 0.3 to 0.7 mol % (relative to the amount of phosphor base compound present in the region taken as 100 mol %).
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: November 15, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takuji Hasegawa, Shigetami Kasai, Naoyuki Sawamoto
  • Publication number: 20140361182
    Abstract: The invention provides radiographic image conversion panels which ensure a high image quality (brightness) of the obtainable radiographic images and have excellent moisture proofness. The radiographic image conversion panel includes a photoelectric conversion element and a scintillator layer including a phosphor and one or more activators, the phosphor being in the form of columnar crystal. The activator concentration in the thickness direction of the scintillator layer gives a profile curve having two or more peaks. The amount of activator or activators present in a region of the scintillator layer extending over a thickness of 100 ?m from a principal surface of the scintillator layer opposed to the photoelectric conversion element is 0.3 to 0.7 mol % (relative to the amount of phosphor base compound present in the region taken as 100 mol %).
    Type: Application
    Filed: June 2, 2014
    Publication date: December 11, 2014
    Applicant: Konica Minolta, Inc.
    Inventors: Takuji Hasegawa, Shigetami Kasai, Naoyuki Sawamoto
  • Publication number: 20090042125
    Abstract: A photothermographic material comprising on one side of a support a light-sensitive layer containing an organic silver salt, silver halide grains, a binder and a reducing agent and on the other side of the support a back coating layer, wherein a dry thickness of the light-sensitive layer is 9 to 16 ?m; a centerline average roughness (Ra(B)) of an outermost surface of a back coating layer side is 100 to 150 nm; and the back coating layer contains a lubricant having a molecular weight of 550 to 10000.
    Type: Application
    Filed: January 11, 2008
    Publication date: February 12, 2009
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventors: Narito GOTO, Takuji HASEGAWA
  • Patent number: 6461805
    Abstract: A photothermograpahic material is disclosed having light-sensitive silver halide grains, an organic silver salt, a reducing agent and a binder, wherein the photothermographic material comprises a silane compound represented by formula (1) or (2): formula (1) (R1O)m—Si—[ (L1)xR2]n formula (2) wherein R1, R2, R3, R4, R5, R6, R7 and R8 represent each an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group; L1, L2, L3 and L4 represent each a bivalent linkage group; m and n are each an integer of 1 to 3, provided that m+n is 4; p1 and p2 are each an integer of 1 to 3 and q1 and q2 are each 0, 1 or 2, provided that p1+q1 and p2+q2 are each 3; r1 and t are each 0 or an integer of 1 to 1000; and x is 0 or 1. The photothermographic material is used on a support.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: October 8, 2002
    Assignee: Konica Corporation
    Inventors: Takeshi Habu, Shu Nishiwaki, Tsuyoshi Mitsuhashi, Toshihisa Takeyama, Takuji Hasegawa
  • Patent number: 6455206
    Abstract: An image forming method comprising the following steps, a step for imagewise exposing a recording material having an image forming layer to a laser beam light based on an image information and making at least a part of an exposed portion of said image forming layer removable, a step for forming an image by removing said image forming layer which is able to be removed, wherein radiation of said laser beam light corresponding to one dot in response to said image information makes a removable amount of said image forming layer variable.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: September 24, 2002
    Assignee: Konica Corporation
    Inventors: Takuji Hasegawa, Toshikazu Umeda
  • Publication number: 20020022203
    Abstract: 1. A photothermographic material is disclosed, comprising on a support light sensitive silver halide grains, an organic silver salt, a reducing agent and a binder, wherein the photothermographic material comprises a silane compound represented by the following formulas.
    Type: Application
    Filed: March 16, 2001
    Publication date: February 21, 2002
    Inventors: Takeshi Habu, Shu Nishiwaki, Tsuyoshi Mitsuhashi, Toshihisa Takeyama, Takuji Hasegawa
  • Patent number: 5834153
    Abstract: A radiographic image forming method is disclosed. The method comprises the steps of (1) interposing a silver halide photographic material which comprises a support having a silver halide emulsion layer on each of both sides the support and has a cross-over value of not more than 15%, between two sheets of an intensifying screen comprising a support and a fluorescent layer composed of plural fluorescent sub-layers and a protect layer provided on the support in this order from the support, in which the fluorescent sub-layers each comprises a binder and particles of a fluorescent substance having the average particle size R and the standard deviation .sigma. of the particle size distribution satisfying a relation of 0 <.sigma./R.ltoreq.0.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: November 10, 1998
    Assignee: Konica Corporation
    Inventors: Takuji Hasegawa, Hiromu Ohara
  • Patent number: 5747229
    Abstract: A solid developing composition for processing a silver halide photographic light sensitive material is disclosed which contains a compound represented by the following formula (1) and a compound represented by the following formula (2): formula (1) ##STR1## formula (2) ##STR2##
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: May 5, 1998
    Assignee: Konica Corporation
    Inventor: Takuji Hasegawa
  • Patent number: 5576160
    Abstract: A composite for radiography is disclosed which essentially consists of a) a silver halide photographic light-sensitive material comprising a transparent support and at least one light-sensitive silver halide emulsion layer provided on each side of the support, b) fluorescent screen A having a 80 kVp X-ray energy absorption of 40% or more and c) fluorescent screen B having a 80 kVp X-ray energy absorption of 50% or more and the absorption more than fluorescent screen A, the material being sandwiched between the screens A and B in such a manner that emulsion layer A is in close contact with screen A and emulsion layer B is in close contact with screen B, wherein the slope of the straight portion in the characteristic curve of emulsion layer A is less than that of emulsion layer B and emulsion layers A and B of the silver halide photographic light-sensitive material have sensitivity on an exposed side that an exposure necessary to give a density of the minimum density +0.5 is 0.027 to 0.040 lux.multidot.second.
    Type: Grant
    Filed: July 5, 1995
    Date of Patent: November 19, 1996
    Assignee: Konica Corporation
    Inventors: Kazuyoshi Goan, Haruhiko Sakuma, Takuji Hasegawa, Kazuhiro Iwasaki
  • Patent number: 5568221
    Abstract: An apparatus for processing a silver halide photographic light-sensitive material with a processing solution is disclosed, comprising a processing tank containing the processing solution and replenishing means for replenishing the processing solution during the course of processing, wherein the replenishing means comprises two replenishing tanks each connected to the processing tank; a solid processing composition and water are supplied to each of the replenishing tanks to prepare a replenishing solution therein; while replenishment is being made from one of the replenishing tanks, the solid processing composition is supplied, together with water, to another replenishing tank to prepared another replenishing solution therein, and the preparation of the replenishing solution and replenishment thereof are repeated alternately in each of the replenishing tanks to perform continuous replenishment.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: October 22, 1996
    Assignee: Konica Corporation
    Inventors: Takuji Hasegawa, Yasunori Wada, Syoji Nishio
  • Patent number: 5411849
    Abstract: A silver halide photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing a silver halide emulsion comprising silver halide grains, which is prepared by a process comprising(i) forming the silver halide emulsion by mixing a silver salt and a halide salt in a dispersion medium,(ii) subjecting the emulsion formed to washing to remove water-soluble salts, and then(iii) carrying out chemical sensitization of the emulsion wherein in (ii), the washing is carried out by coagulating the emulsion by a gelatin coagulant selected from of a modified gelatin or a polymeric coagulant represented by the following formula [I]; and in (iii), iodide-containing silver halide fine grains are added at a time during the course of the chemical sensitization, ##STR1##
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: May 2, 1995
    Assignee: Konica Corporation
    Inventor: Takuji Hasegawa
  • Patent number: 5376521
    Abstract: A silver halide photographic light-sensitive material comprising a support bearing on both sides thereof a silver halide emulsion layer containing a silver halide emulsion comprising monodispersed and spectrally-sensitized silver halide tabular grains having an average aspect ratio of grain diameter to grain thickness of from not less than 2 to less than 8 and accounting for at least 70% of the total projected area of the grains contained in the silver halide emulsion and a method of preparing the silver halide emulsion are disclosed, wherein the silver halide emulsion is chemically sensitized in the presence of iodide-containing silver halide fine grains, thus chemically-sensitized emulsion having a value of 100 mV or less with respect to a silver electrode potential at 50.degree. C.
    Type: Grant
    Filed: October 21, 1993
    Date of Patent: December 27, 1994
    Assignee: Konica Corporation
    Inventors: Kenichi Inoue, Takuji Hasegawa, Yuji Hosoi, Yorihiro Yamaya, Akiko Suzuki
  • Patent number: 4990439
    Abstract: A silver halide light-sensitive photographic material having a support and provided thereon, hydrophlic colloidal layers including at least one silver halide light-sensitive emulsion layer is disclosed. The silver halide emulsion layer comprises a silver halide emulsion (I) prepared by adding a high-molecular flocculant under at least one of Conditions (1) through (3) to a silver halaide emulsion (II) prepared by a water-soluble silver salt solution and a water-soluble halide solution to a protevtive colloid solution so as to flocculate and settle a silver halide grain together with a protective colloid for desalting of dissolved substances, and by dispersing again the desalted silver halide emulsion in a protective colloid solution;Condition (1): a temperature of the silver halide emulsion (II) is not lower than 30.degree. C.
    Type: Grant
    Filed: August 1, 1989
    Date of Patent: February 5, 1991
    Assignee: Konica Corporation
    Inventors: Kazuyoshi Goan, Takuji Hasegawa