Patents by Inventor Shoichi Imai

Shoichi Imai 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: 7990165
    Abstract: To provide a contact probe which can easily be connected with a measurement apparatus electrically, can measure a high speed and high frequency signal with a fine pitch easily and correctly, and can easily cope with signal measurement for a plurality of channels, and a method of making the contact probe. It includes a first printed wiring board 3 having a signal electrode 10a and a ground electrode 10b used as a contact part with respect to a measuring object, in which the signal electrode 10a and ground electrode 10b are formed of a metal wiring pattern on a substrate, and a second printed wiring board 2 with a coaxial line structure having shield electrodes 12, 17, 18 which enclose a signal line 15a and the surroundings of the signal line 15a through an insulating layer.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: August 2, 2011
    Assignees: National Institute of Advanced Industrial Science and Technology, Kiyoto Manufacturing Co., TSS Corporation
    Inventors: Masahiro Aoyagi, Katsuya Kikuchi, Hiroshi Nakagawa, Yoshikuni Okada, Hiroyuki Fujita, Shoichi Imai, Shigeo Kiyota
  • Patent number: 7198480
    Abstract: An injection molding system has a plurality of movable sub-clamping units each having a mold therein and a main clamping unit for clamping the mold in the sub-clamping unit. Each of the sub-clamping units alternately enters the main clamping unit for only a filling process to receive the melted resin material from an injection unit. Each sub-clamping unit clamps the mold by its own clamping mechanism and moves to the main clamping unit where the mold is further clamped by a higher clamping pressure by the main clamping unit during the filling process. Each sub-clamping unit is retracted from the main clamping unit immediately after the filling process and stayed outside of the main clamping unit through the holding process and the cooling process, thereby dramatically improving the molding production efficiency.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: April 3, 2007
    Assignee: Yamato Engineering, Inc.
    Inventor: Shoichi Imai
  • Publication number: 20060172039
    Abstract: An injection molding system has a plurality of movable sub-clamping units each having a mold therein and a main clamping unit for clamping the mold in the sub-clamping unit. Each of the sub-clamping units alternately enters the main clamping unit for only an filling process to receive the melted resin material from an injection unit. Each sub-clamping unit clamps the mold by its own clamping mechanism and moves to the main clamping unit where the mold is further clamped by a higher clamping pressure by the main clamping unit during the filling process. Each sub-clamping unit is retracted from the main clamping unit immediately after the filling process and stayed outside of the main clamping unit through the holding process and the cooling process, thereby dramatically improving the molding production efficiency.
    Type: Application
    Filed: February 1, 2005
    Publication date: August 3, 2006
    Inventor: Shoichi Imai
  • Patent number: 5556862
    Abstract: Pharmaceutical compositions containing an isoquinoline derivative exhibit an excellent inhibitory action to an isozyme of phosphodiesterase of the type IV (PDEIV). The active component of the pharmaceutical composition is an isoquinoline derivative which is represented by the general formula: ##STR1## wherein R is an ethoxy group, or which is a pharmaceutically-acceptable salt of a compound represented by said formula. The isoquinoline derivatives have an excellent inhibitory action which is highly specific to PDEIV. They are highly useful as pharmaceuticals such as antidepressive agents, tranquilizers, antidemential agents, antiinflammatory agents, antiallergic agents, antiasthmatic agents, liver-protecting agents, and diuretic agents.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: September 17, 1996
    Assignee: Nippon Zoki Pharmaceutical Co., Ltd.
    Inventors: Shoichi Imai, Ken-ichi Mabuchi, Minoru Kawamura
  • Patent number: 5246922
    Abstract: The present invention relates to a N.sup.6,N.sup.6 -disubstituted-cyclic adenosine-3',5'-monophosphate represented by the formula ##STR1## wherein R represents a linear alkyl group having 3 or more carbon atoms or a branched alkyl group having 4 or more carbon atoms, an aralkyl group or an alkenyl group; A.sup..sym. represents a hydrogen ion, an alkali metal ion, an alkaline earth metal ion, an ammonium ion or an organoammonium ion, or a salt thereof, and a cardiac composition comprising it as an effective component, and further includes a process for preparing a compound represented by the formula ##STR2## wherein R.sub.1 represents an alkyl group, an aralkyl group or an alkenyl group and A.sup..sym. has the same meanings as defined above, or a salt thereof, characterized in that a 2'-O-protected-cyclic adenosine-3',5'-monophosphate represented by the formula ##STR3## wherein Y represents a protecting group and A.sup..sym.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: September 21, 1993
    Assignee: Kikkoman Corporation
    Inventors: Shigehiro Kataoka, Nobuyuki Yamaji, Motohiko Kato, Shoichi Imai
  • Patent number: 5215551
    Abstract: An .alpha.-alumina-based ceramics material comprising crystals of a particle diameter of no greater than 0.2 .mu.m on an average or a particle diameter of substantially no greater than 0.2 .mu.m, and having a density of no lower than 95% of the theoretical density and a hardness of no lower than 2,000 kg/mm.sup.2, and a method for the production thereof.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: June 1, 1993
    Assignee: Showa Denko K.K.
    Inventors: Tetsuo Hatanaka, Tadashi Hiraiwa, Minoru Matsukura, Norimichi Aoki, Shoichi Imai
  • Patent number: 4902677
    Abstract: A composition for use in the treatment of heart failure of mammals which comprises, as its active ingredient, an N.sup.6 -substututed-adenosine-3',5'-cyclic phosphate represented by the following general formula (I) or a physiologically acceptable salt thereof: ##STR1## wherein R represents alkyl or aralkyl group and a pharmaceutically acceptable carrier, as well as a method for treating heart failure of mammals which comprises administering said composition.
    Type: Grant
    Filed: February 24, 1988
    Date of Patent: February 20, 1990
    Assignee: Kikkoman Corporation
    Inventors: Shoichi Imai, Shigehiro Kataoka, Junko Isono, Nobuyuki Yamaji, Motohiko Kato