Patents by Inventor Masakazu Nakamura

Masakazu Nakamura 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: 6146135
    Abstract: Vacuum processing equipment capable of preventing particles from sticking to objects to be processed in vacuum vessels. The vacuum equipment comprises a series of vacuum vessels separated by doors, and the pressure in the vessels are reducible respectively. The vessels are so configured that objects to be processed are movable among them, and there is provided light projection means for projecting ultra rays on gases introduced to at least of the vessels.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: November 14, 2000
    Assignees: Tadahiro Ohmi, Takasago Netsugaku Kogyo Kabushiki Kaisha
    Inventors: Jinzo Watanabe, Takeo Yamashita, Masakazu Nakamura, Shintaro Aoyama, Hidetoshi Wakamatsu, Tadashi Shibata, Tadahiro Ohmi, Nobuhiro Konishi, Mizuho Morita, Hisayuki Shimada, Takashi Imaoka
  • Patent number: 6045104
    Abstract: A medical stand apparatus includes a drive mechanism for moving a counterweight in a balancing direction and a balance-sensing mechanism for sensing balancing-state of a parallel link mechanism and for sending a signal to the drive mechanism. The balance-sensing mechanism is provided on a connection shaft on which arms of the parallel link mechanism intersect with each other. When the angle between the arms on the connection shaft is displaced due to upset of balance, a switch corresponding to the direction of angular displacement is pressed by the tip portion of a lock pin. As a result, the pressed switch sends a signal to the drive mechanism, whereby the counterweight is automatically moved in a balancing direction. Since balancing adjustment can be automatically performed in this manner, time required for the balancing-adjustment work is reduced, and a person unfamiliar with the balancing-adjustment work can readily carry out the work.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: April 4, 2000
    Assignee: Mitaka Kohki Co., Ltd.
    Inventors: Katsushige Nakamura, Masao Doi, Masakazu Nakamura
  • Patent number: 5764809
    Abstract: An image processing apparatus comprises a CPU, an information input unit, a main storage made up of a RAM, an image input interface, a display interface, and a ROM. These components are mutually connected on a bus. The CPU includes an image processor which operates according to programs stored in the ROM. The image processor comprises a corresponding point detector for detecting corresponding points in multiple images, an image matching unit for matching at least two images according to the output result of the corresponding point detector, and an image synthesizer for synthesizing at least part of at least one image portion matched by said image matching unit with at least part of image information of other images to form a single image. The information input unit is a keyboard for entering the type of an electronic endoscope and other data. The image input interface is connected to image memories and receives image data from the memories.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: June 9, 1998
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Tetsuo Nomami, Nagaaki Ohyama, Masahiro Yamaguchi, Hirokazu Nishimura, Masakazu Nakamura
  • Patent number: 5684262
    Abstract: An apparatus for playing back a recording medium on which a plurality of accompaniment signals and identification information indicative of respective genres of the accompaniment signals are recorded includes a playback device, at least one tone converter, and first and second mixers. The playback device plays back a recording medium loaded in the apparatus. The tone converter converts an inputted voice signal from a microphone into a voice signal having a tone spaced a given pitch from the tone of the inputted voice signal. The first mixer mixes the voice signal converted by the tone converter with the inputted voice signal, and the second mixer mixes a voice signal outputted from the first mixer with an accompaniment signal outputted from the playback device.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: November 4, 1997
    Assignee: Sony Corporation
    Inventors: Junichi Nakamura, Masakazu Nakamura
  • Patent number: 5667133
    Abstract: A welding method for forming an oxide passivation film having corrosion resistance and an extremely small emission quantity of an outgas during welding at a weld portion and portions nearby, and a process apparatus requiring an ultrahigh-clean atmosphere. A back-shielding gas comprising an inert gas containing 1 ppb to 50 ppm of oxygen gas is caused to flow during a welding process, and an oxide passivation film comprising chromium oxide as a principal component is formed on the surface of the weld portion. In a process apparatus using welding for installing the apparatus, a back-shielding gas comprising an inert gas containing 1 ppb to 50 ppm of oxygen gas is caused to flow during a welding process and an oxide passivation film comprising chromium oxide as a principal component is formed on the surface of a weld portion.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: September 16, 1997
    Assignees: Tadahiro Ohmi, Osaka Sanso Kogyo Ltd.
    Inventors: Tadahiro Ohmi, Masakazu Nakamura
  • Patent number: 5558619
    Abstract: An endoscope system includes a movement detector for detecting an operator's movement, a signal processor for processing a signal the detector detects, and a control for controlling drive which drives a medical device according to an output signal of the signal processor. The endoscope system bends a bending section of an endoscope serving as a medical device according to the operator's movement, and thus orients the observation field of view to a direction the operator intends or controls the movement of a treatment adapter serving as a medical device. The endoscope system includes a superimposing means for superimposing an image associated with the operator's movement onto an image acquired by an imaging device associated with the endoscope system.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: September 24, 1996
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Kuniaki Kami, Hideyuki Adachi, Koichi Umeyama, Yoshihiro Kosaka, Seiji Yamaguchi, Eiichi Fuse, Michio Sato, Masakazu Nakamura, Yasundo Tanaka, Takashi Fukaya, Kiyotaka Matsuno, Katsuya Suzuki
  • Patent number: 5545868
    Abstract: A superpure purity gas supply system adapted to prevent a semiconductor device of high cleanliness, into which a gas is introduced through a gas supply pipe system, from being contaminated with the metal s or the like deposited during the welding thereof, and a method of installing such a gas supply pipe system. The superhigh purity gas supply system according to the present invention is a pipe system consisting of gas supply pipe system parts welded portions, characterized in that the gas supply pipe system parts having such welded portions are washed with super high purity water before, during or after the installation of the pipe system.
    Type: Grant
    Filed: May 19, 1994
    Date of Patent: August 13, 1996
    Assignee: Tadahiro Ohmi
    Inventors: Tadahiro Ohmi, Masakazu Nakamura
  • Patent number: 5539171
    Abstract: A welding system for superhigh purity gas supply system, capable of removing easily and completely the metals deposited, during the installation of the superhigh purity gas pipe system, on the outer surfaces of the portions of the pipes which are closed to the portions to be welded thereof and on the inner portions of these pipes, and capable of setting up a superhigh purity gas supply system in a short period of time.
    Type: Grant
    Filed: May 19, 1994
    Date of Patent: July 23, 1996
    Assignee: Tadahiro Ohmi
    Inventors: Tadahiro Ohmi, Masakazu Nakamura
  • Patent number: 5361203
    Abstract: This invention provides an endoscope image data filing system comprising: a plurality of endoscope devices and a plurality of ultrasonic endoscope devices; an image data recording device which records a plurality of image information after reversibly and irreversibly compressing image signals received from the plurality of the endoscope devices and from the plurality of the ultrasonic endoscope devices; an image reproducing device (A) and an image reproducing device (B) for reproducing the image information recorded in the image data recording device; a large capacity data recording device which as required reads and writes the compressed image information recorded in the image data recording device; and a data communication device for performing communication between the image data recording device and an external host computer via a data input/output terminal device.
    Type: Grant
    Filed: April 8, 1993
    Date of Patent: November 1, 1994
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Keiichi Hiyama, Masahide Kanno, Masakazu Nakamura, Kenichiro Nimoda
  • Patent number: 5351677
    Abstract: A medical system has a detecting device for detecting three dimensional image information about a living body, a signal processing circuit for processing the image signal transmitted from the detecting device, and an object information reproduction device. The object information reproduction device comprises a movable displacement element which is touched by the operator and acts according to the output from the signal processing circuit so as to cause the operator to tactually sense information about the object. Thus, the operator is able to recognize the degree of unevenness in a tactile manner by touching the displacement element. Other embodiments include means for sensing and reproducing hardness and temperature of the object.
    Type: Grant
    Filed: April 15, 1992
    Date of Patent: October 4, 1994
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Kuniaki Kami, Hideyuki Adachi, Koichi Umeyama, Yoshihiro Kosaka, Seiji Yamaguchi, Eiichi Fuse, Michio Sato, Masakazu Nakamura, Yasundo Tanaka, Takashi Fukaya, Kiyotaka Matsuno, Katsuya Suzuki
  • Patent number: 5339799
    Abstract: A medical system according to the present invention comprises a medical apparatus including an operation unit manipulated by a surgeon and a treatment section formed away from the operation unit for treating a subject, a detector or a pressure sensor for detecting a state of contact between the subject and the treatment section, and a reproduction mechanism for amplifying a small contact pressure according to the output of the detector and thus reproduce the state of contact so that the surgeon can perceive the state of contact.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: August 23, 1994
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Kuniaki Kami, Hideyuki Adachi, Koichi Umeyama, Yoshihiro Kosaka, Seiji Yamaguchi, Eiichi Fuse, Michio Sato, Masakazu Nakamura, Yasundo Tanaka, Takashi Fukaya, Kiyotaka Matsuno, Katsuya Suzuki
  • Patent number: 5334714
    Abstract: There is here disclosed a method for preparing an alkoxyphthalocyanine represented by the formula (1): ##STR1## wherein each of Rs is independently a secondary alkyl group having 3 to 20 carbon atoms, Met is a divalent metal atom or an oxy metal, and the substitution positions of -ORs are the 1- or 4-position, the 5- or 8-position, the 9- or 12 position, and the 13- or 16-position, which comprises the steps of heating a mixture of 3-alkoxyphthalonitrile and an organic base in an alcohol to 90.degree.-120.degree. C., adding a metal derivative at the same temperature, and then carrying out reaction, or alternatively the step of reacting a mixture of a 1,3-diimino-4-alkoxyisoindoline and a metal derivative in the presence or absence of an organic base in an aliphatic alcohol having 6 or more carbon atoms. In addition, the ratio of isomers of the alkoxyphthalocyanine can be controlled by regulating the addition time of the organic base.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: August 2, 1994
    Assignees: Mitsui Toatsu Chemicals, Incorporated, Yamamoto Chemicals, Incorporated
    Inventors: Takahisa Oguchi, Kenichi Sugimoto, Shin Aihara, Hisato Itoh, Mansuke Matsumoto, Toshihiro Masaoka, Masakazu Nakamura
  • Patent number: 5282030
    Abstract: A group of vectors are set to transform each signal of an endoscopic image resolved into a plurality of color signals into a plurality of new color signals based on statistical characteristics of the image. Also, the color signals of the endoscopic image are transformed into new color signals by a matrix operation using the group of vectors for the new color signals. After filtering is applied to the plurality of new color signals, the plurality of new color signals are transformed into a plurality of original color signals by a matrix operation using an inverse matrix of the matrix used in the matrix operation.
    Type: Grant
    Filed: April 8, 1992
    Date of Patent: January 25, 1994
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Hirokazu Nishimura, Tetsuo Nonami, Masakazu Nakamura
  • Patent number: D342493
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: December 21, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshikazu Asanuma, Masakazu Nakamura
  • Patent number: D342498
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: December 21, 1993
    Assignee: Matsushita Electic Industrial Co., Ltd.
    Inventors: Masakazu Nakamura, Toshikazu Asanuma
  • Patent number: D342500
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: December 21, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kenichi Wada, Yuzo Fujii, Masakazu Nakamura, Masao Yoshikawa, Hiroaki Nishiyori
  • Patent number: D362847
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: October 3, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshikazu Asanuma, Shigeo Usui, Masakazu Nakamura
  • Patent number: D381992
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: August 5, 1997
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masakazu Nakamura, Masayuki Hara
  • Patent number: D391563
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: March 3, 1998
    Assignee: Matsushtia Electric Industrial Co., Ltd.
    Inventors: Takashi Inoue, Toshikazu Asanuma, Masakazu Nakamura
  • Patent number: D396038
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: July 14, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshikazu Asanuma, Hiroyuki Maeno, Muneyuki Nagai, Masakazu Nakamura