Patents by Inventor Noriaki Arai

Noriaki Arai 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).

  • Scanning electron microscope
    Publication number: 20040113074
    Abstract: Image observation at high resolution is realized and irregularity information of a sample is obtained.
    Type: Application
    Filed: December 9, 2003
    Publication date: June 17, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Naomasa Suzuki, Toshiro Kubo, Noriaki Arai, Mitsugu Sato, Hideo Todokoro, Yoichi Ose
  • Scanning electron microscope
    Publication number: 20030122074
    Abstract: Image observation at high resolution is realized and irregularity information of a sample is obtained.
    Type: Application
    Filed: February 20, 2003
    Publication date: July 3, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Naomasa Suzuki, Toshiro Kubo, Noriaki Arai, Mitsugu Sato, Hideo Todokoro, Yoichi Ose
  • Scanning electron microscope
    Patent number: 6555819
    Abstract: Image observation at high resolution is realized and irregularity information of a sample is obtained. The reflected electrons 12a emitted in a direction at a small angle with the surface of the sample 8 are detected by the detectors 10a and 10b arranged on the side of the electron source 1 of the magnetic field leakage type object lens 7 and a sample image is formed. Irregularity information of the sample is obtained from the effects of light and shade appearing in the sample image.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: April 29, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Naomasa Suzuki, Toshiro Kubo, Noriaki Arai, Mitsugu Sato, Hideo Todokoro, Yoichi Ose
  • Valve assembly for gas cylinder
    Patent number: 5738145
    Abstract: A gas inlet (4) an inlet passage (8), a stop valve (7), an outlet passage (9) and a gas outlet (5) are communicated orderly with one another within a valve casing (3). The outlet passage (9) is communicated with the inlet passage (8) through a gas charging passage (10). A check valve (11) for blocking a flow from the inlet passage (8) to the outlet passage (9) is arranged in the gas charging passage (10). When a vacant gas cylinder (1) is charged with a high-pressure gas, the charge gas is supplied to a gas charging mouthpiece (17) connected to the gas outlet (5) while the stop valve (7) is kept closed. Thereupon, an interior space (A) of the gas cylinder (1) is charged with the charge gas from the outlet (5) through the check valve (11) and the gas inlet (4) in order.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: April 14, 1998
    Assignee: Kabushiki Kaisha Neriki
    Inventors: Norio Daicho, Keitaro Yonezawa, Masakatsu Kawahara, Noriaki Arai, Teruo Hatori