Patents by Inventor Kenji Yamazaki

Kenji Yamazaki 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).

  • Publication number: 20090036741
    Abstract: An endoscopic apparatus according to the invention has an illumination unit capable of emitting to a subject first narrow band light having a wavelength band in a blue region and second narrow band light having a wavelength band in a green region, an image pickup unit which picks up a first subject image when the subject in the living body is illuminated with the first narrow band light, and picks up a second subject image when the subject in the living body is illuminated with the second narrow band light, a storage unit which stores the first subject image as a green component and a blue component, and stores the second subject image as a red component and a blue component, and a color tone conversion unit which performs predetermined color conversion processing to form an image of a predetermined object as an image having a predetermined first color.
    Type: Application
    Filed: October 8, 2008
    Publication date: February 5, 2009
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Makoto IGARASHI, Kenji YAMAZAKI
  • Publication number: 20090021578
    Abstract: An image processor includes a filter process circuit for executing a filtering of image data picked up by an image pickup unit with a plurality of spatial filters, a brightness calculation circuit for calculating a brightness in a local area of the image data, a weighting circuit for weighting an output of the filter process circuit in accordance with an output of the filter process circuit and/or an output of the brightness calculation circuit, and an inverse filter process circuit for executing an inverse filter process with respect to an output of the weighting circuit to generate process image data.
    Type: Application
    Filed: March 22, 2006
    Publication date: January 22, 2009
    Inventors: Kenji Yamazaki, Yoshinori Takahashi
  • Publication number: 20080306343
    Abstract: An endoscopic device of the present invention comprises: an endoscope having an image pickup unit that outputs a picked up an image of a subject as an image pickup signal; an image pickup signal amplification unit; a light source unit; a light intensity control unit that controls an amount of light; a spectral unit that penetrates light in a band based on predetermined characteristics; a brightness control unit that controls a brightness of an image displayed on a display unit; and a mode switching unit that switches a first mode for emitting first illumination light and a second mode for emitting second illumination light having a band narrower than the first illumination light, wherein the brightness control unit controls the light intensity control unit and then controls the image pickup signal amplification unit in the second mode.
    Type: Application
    Filed: August 12, 2008
    Publication date: December 11, 2008
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventor: Kenji YAMAZAKI
  • Publication number: 20080306338
    Abstract: A white light from a lamp passes through R, G, and B filters of a rotating filter and turns into broadband R, G, and B frame sequential illumination lights. The lights are applied to a living mucous membrane in a body cavity through an electronic endoscope, and sequential image pickup is performed by a CCD. Output signals from the CCD are sequentially switched by a selector in a filter circuit. An R signal, a G signal, and a B signal pass through the filter circuit 36 through no medium, a BPF, and an HPF, respectively, and are separated into signal components corresponding to spatial frequency components of living mucous membrane structures. The separation leads to generation of image signals of an image which allows easy identification of the living mucous membrane structures.
    Type: Application
    Filed: August 15, 2008
    Publication date: December 11, 2008
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Kenji YAMAZAKI, Kazuhiro GONO
  • Patent number: 7449101
    Abstract: In a method of reducing corrosion of a metal material, a substance such as semiconductor for generating an electric current by thermal excitation is coated or adhered on a metal material surface, to be exposed to a water having a high temperature of 150° C. or more, of a boiler and ducts or pipes, to which hot water heated by the boiler contacts, of a thermal electric power plant or a nuclear reactor structural material or ducts or pipes surrounding the reactor in a nuclear power plant.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: November 11, 2008
    Assignees: Kabushiki Kaisha Toshiba, The Tokyo Electric Power Company, Incorporated, Ishikawajima - Harima Heavy Industries Co., Ltd.
    Inventors: Masato Okamura, Yukio Henmi, Nagayoshi Ichikawa, Tetsuo Oosato, Seiji Yamamoto, Kazuo Murakami, Kenji Yamazaki, Junichi Takagi, Tadasu Yotsuyanagi, Shunichi Suzuki, Kenro Takamori, Mitsuru Sambongi, Yuichi Fukaya, Takasi Hirano
  • Patent number: 7346140
    Abstract: A photocatalytic substance having the properties of an n-type semiconductor is deposited on a surface of a metal base made of a stainless steel or Inconel. When necessary, the hydrogen concentration of the reactor water is increased. A current produced by the photocatalytic substance when the same is irradiated with light or radioactive rays in a nuclear reactor flows through the metal base to reduce corrosion current. When necessary, the photocatalytic substance is provided on its surface with at least one of Pt, Rh, Ru and Pd.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: March 18, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nagayoshi Ichikawa, Yukio Hemmi, Tetsuo Oosato, Junichi Takagi, Kenji Yamazaki
  • Patent number: 7344512
    Abstract: A protector effectively suppresses infections. The protector protects a tube entry part, where a tube passes through the skin of a living body, from infections, and includes a sticking part that is stuck onto the skin of the living body in a periphery of the tube entry part, and a covering that covers the tube entry part, forms an internal space that surrounds the tube entry part, and has a passage through which the tube passes. The covering is provided with an opening that can be freely opened and closed with a cap or the like.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: March 18, 2008
    Assignee: Sun Medical Technology Research Corporation
    Inventors: Kenji Yamazaki, Nobuaki Aizawa
  • Publication number: 20070160330
    Abstract: An optical connector mounted on a board comprises an optical connector main body that performs optical transmission and a fixing pin that fixes the optical connector main body to the board. The optical connector main body has a pin insertion hole that the fixing pin is inserted.
    Type: Application
    Filed: September 22, 2006
    Publication date: July 12, 2007
    Inventors: Kenji Yamazaki, Toshimichi Iwamori
  • Publication number: 20070153542
    Abstract: In an endoscope apparatus of the present invention, while observing a body cavity tissue under narrowband light via a second filter group of a rotating filter, a G2 filter section, B2 filter section, and shading filter section change illumination light to narrowband surface-sequential light of two bands of discrete spectral characteristics, and an image-capturing signal captured by a CCD via the B filter section constitutes a band image having superficial layer tissue information, and an image-capturing signal captured by a CCD via the G filter section constitutes a band image having intermediate layer tissue information. This produces tissue information of a desired depth in the vicinity of a superficial portion of a mucous membrane using an inexpensive and simple configuration.
    Type: Application
    Filed: February 27, 2007
    Publication date: July 5, 2007
    Applicant: OLYMPUS CORPORATION
    Inventors: Kazuhiro Gono, Mutsumi Ohshima, Shoichi Amano, Kenji Yamazaki
  • Publication number: 20070119246
    Abstract: A flow rate estimation method of a blood pump of the present invention includes a first step which has a step in which a plurality of blood pumps are prepared, and a general flow rate estimation formula which includes a correction term is formed using the plurality of respective blood pumps and a step in which measured data obtained by using the objective blood pump implanted inside a body of a patient is substituted into a correction term, thus forming a flow rate estimation formula of the objective blood pump based on the general flow rate estimation formula, and a second step which estimates the flow rate Q of the blood pump based on the flow rate estimation information formula and the values of N, I and Z of the objective blood pump which are obtained by measuring the rotational speed N of the motor and the consumption current I of the motor of the objective blood pump which is implanted inside the body of the patient, and the attribute data Z of the blood of the patient.
    Type: Application
    Filed: October 26, 2006
    Publication date: May 31, 2007
    Applicant: SUN MEDICAL TECHNOLOGY RESEARCH CORPORATION
    Inventors: Takayuki Miyakoshi, Kenji Yamazaki
  • Publication number: 20070059473
    Abstract: The present invention relates to a sheet-like medical covering member, which covers the surface of a medical device attached inside a living body and/or to a percutaneous site, and thereby allows the medical device to be fixed inside a living body and/or to a percutaneous site, so as to allow the medical device to stably stay there for a long period of time, wherein the sheet-like medical covering member is modified by a hydrophilic surface treatment, and/or by a coating treatment with calcium phosphate ceramics or with a composition comprising a biopolymer.
    Type: Application
    Filed: August 14, 2006
    Publication date: March 15, 2007
    Applicant: Sun Medical Technology Research Corp.
    Inventors: Kenji Yamazaki, Toshikatsu Kitazume, Tomoko Hirata, Tetsuya Fujii, Nobuaki Aizawa
  • Publication number: 20060189308
    Abstract: A neighbor sector is automatically set to effectively perform soft handover. A base station corresponding to a first sector to communicate with a wireless terminal and a base station corresponding to a second sector to start communication with the wireless terminal due to movement of the wireless terminal or the like transmit a terminal identifier acquired from the wireless terminal, a time and a sector identifier to a base station control part (control part in the following). The control part successively stores the received sector identifier into a table correspondingly to the terminal identifier and the time received from the base station. Besides, the control part refers to the table, judges whether different sector identifiers are stored in a previously determined time range, regards a pair of the two different sector identifiers as neighbor sector candidates and counts the number of times they are regarded as the neighbor sector candidates.
    Type: Application
    Filed: January 31, 2006
    Publication date: August 24, 2006
    Inventors: Ryosuke Kurata, Masaaki Yano, Daiho Kasai, Kenji Yamazaki
  • Publication number: 20060153343
    Abstract: A cordless telephone handset that does not affect the use of a magnetic pick-up type hearing aid. The cordless telephone handset includes a TDD processing section for controlling transmission and reception by means of TDD communications, and a suppressing device for suppressing variations in the magnetic field generated by the TDD processing section. By suppressing variations in the magnetic field generated by the TDD processing section, the problem of magnetic field variations being picked up by a magnetic pick-up type hearing aid and being output as noise, is overcome.
    Type: Application
    Filed: January 12, 2005
    Publication date: July 13, 2006
    Inventors: Kenji Yamazaki, Yoshihisa Takebe
  • Publication number: 20060146975
    Abstract: In a nuclear power plant, a corrosion-resistant oxide film on a surface of the metal component of a reactor structure is exposed to a high-temperature water, the corrosion-resistant oxide film containing an oxide having a property of a P-type semiconductor, and a catalytic substance having a property of an N-type semiconductor is deposited on the oxide film. The oxide film maintains the property of the P-type semiconductor.
    Type: Application
    Filed: December 8, 2005
    Publication date: July 6, 2006
    Applicants: Kabushiki Kaisha Toshiba, THE TOKYO ELECTRIC POWER COMPANY, INCORPORATED
    Inventors: Masato Okamura, Tetsuo Oosato, Seiji Yamamoto, Tadasu Yotsuyanagi, Nagayoshi Ichikawa, Kenji Yamazaki, Junichi Takagi, Hidehiro Urata, Shunichi Suzuki, Kenro Takamori, Junichi Suzuki
  • Patent number: 7047642
    Abstract: An ink jet recording head and a process for producing the same, and an ink jet recording apparatus are provided that improve the printing performance and also improve the production efficiency. A conjugated body 73 formed by conjugating silicon wafers 50 and 58 is cut, whereby nozzles 22 are opened, and cutting into head chip units is carried out. At this time, deep grooves 84 are formed on the surface of the silicon wafer 58 by anisotropic etching, and they are penetrated by etching on the opposite side. Grooves 90 are formed on the silicon wafer 50 by using the thus penetrated deep grooves 84 as a mask.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: May 23, 2006
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masaki Kataoka, Michiaki Murata, Kenji Yamazaki, Yoshihisa Ueda, Norikuni Funatsu, Kumiko Tanaka
  • Patent number: 7036237
    Abstract: At least one assembly of a movable member or a guide member (32) that guides the movement of the movable member out of a plurality of assemblies of a measuring instrument contains a sealed space (322). A filler is filled in the sealed space (322). According to this arrangement, rigidity of the movable member or the guide member (32) can be enhanced. Further, residual vibration generated along with the movement of the movable body can efficiently be attenuated.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: May 2, 2006
    Assignee: Mitutoyo Corporation
    Inventors: Katsuyuki Ogura, Kenji Yamazaki
  • Publication number: 20060050833
    Abstract: A photocatalytic substance having the properties of an n-type semiconductor is deposited on a surface of a metal base made of a stainless steel or Inconel. When necessary, the hydrogen concentration of the reactor water is increased. A current produced by the photocatalytic substance when the same is irradiated with light or radioactive rays in a nuclear reactor flows through the metal base to reduce corrosion current. When necessary, the photocatalytic substance is provided on its surface with at least one of Pt, Rh, Ru and Pd.
    Type: Application
    Filed: June 27, 2005
    Publication date: March 9, 2006
    Inventors: Nagayoshi Ichikawa, Yukio Hemmi, Tetsuo Oosato, Junichi Takagi, Kenji Yamazaki
  • Publication number: 20060050966
    Abstract: According to the present invention, an image processing method includes: an input step of inputting an image; and an extraction step of performing matching between a template, obtained by modeling a predetermined structural component in the image and the image input in the input step to extract a structural component serving as an extraction target in the image.
    Type: Application
    Filed: December 5, 2003
    Publication date: March 9, 2006
    Inventors: Hirokazu Nishimura, Hideki Tanaka, Kenji Yamazaki
  • Publication number: 20060020242
    Abstract: The present invention provides an artificial blood vessel system which can suppress the occurrence of the stagnation of a blood flow and, eventually, the occurrence of the thrombus, can enhance the reliability of the connection, and can prolong the lifetime of the artificial blood connecting structure. In the artificial blood vessel system which includes an artificial blood vessel, a tubular connecting member which is connected with the artificial blood vessel, and connecting assist means for strengthening the connection between the artificial blood vessel and the tubular connecting member, the connecting assist means is configured to be capable of bringing the artificial blood vessel into pressure contact with the tubular connecting member not only along the radial direction of the tubular connecting member but also at an artificial-blood-vessel-side distal end of the tubular connecting member.
    Type: Application
    Filed: October 20, 2004
    Publication date: January 26, 2006
    Inventors: Kenji Yamazaki, Tomoya Kitano, Takeshi Nakayama
  • Publication number: 20050207645
    Abstract: According to the invention, a computer includes an information input section, a search criteria input section, an image characteristic value creating section, an image region-of-interest creating section, an information list creating section, a graph executing section and a test executing section. The computer performs processing for inputting information, creating display data and analyzing numeric values in accordance with an event and displays a processing result on a display apparatus. Under this construction, an optimum test procedure can be automatically selected, and work effort can be reduced thereby. Furthermore, by preventing improper selection of a test procedure, an accurate test result can be obtained.
    Type: Application
    Filed: May 18, 2005
    Publication date: September 22, 2005
    Applicant: OLYMPUS CORPORATION
    Inventors: Hirokazu Nishimura, Hideki Tanaka, Kenji Yamazaki