Patents by Inventor Hiroshi Ohyama

Hiroshi Ohyama 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: 5518270
    Abstract: A vehicular knee protector device is comprised of a protector body and a pair of brackets. Each bracket is constituted by a V-shaped lower bracket and a V-shaped lower bracket. The upper bracket is fixed to the lower bracket so as to form a polygon space which is preferable deformed when predetermined force is applied to the knee protector device. Further, the lower bracket is formed so that a side to be connected to a vehicle body is structurally stronger than a side to be connected to a protector body to which driver's knees are impacted.
    Type: Grant
    Filed: March 29, 1995
    Date of Patent: May 21, 1996
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Koutarou Hanada, Noriki Fujisawa, Tugio Hirose, Hirofumi Sawada, Shuichi Koide, Morimitsu Kobayashi, Makoto Tamuraya, Asao Takei, Yoshiki Kawasaki, Hiroshi Ohyama, Youichi Tanabe
  • Patent number: 5116838
    Abstract: There are disclosed novel 1,3-dibenzyl (or diphenethyl)-2-phenylguanidine derivatives. The guanidines possess high control effects on mildew, blight, powdery mildew and rust which are serious diseases of fruit trees, vegetables or cereals, and are useful as agricultural and horticultural fungicides.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: May 26, 1992
    Assignee: Hokko Chemical Industry Co., Ltd.
    Inventors: Hiromichi Ishikawa, Takashi Umeda, Shinji Onoue, Kazuo Kajikawa, Toshihiro Shibata, Hiroshi Ohyama
  • Patent number: 4822814
    Abstract: As new compound are provided alkyl 1,3-dithiol-2-ylidene-alkylsulfonylacetates which are useful as fungicidal agent and agent for therapeutically treating or preventing a liver disorder as well as agent for reducing the internal fat deposit or preventing excessive accumulation of the internal fat deposit in the body of animals, including humans. These new compounds have improved activities for these applications, as compared to known similar compounds.
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: April 18, 1989
    Assignee: Hokko Chemical Industry Co., Ltd.
    Inventors: Hiroshi Ohyama, Satoshi Hobara, Kazuyuki Tsujimoto, Shouji Tanaka
  • Patent number: 4752326
    Abstract: As compounds is provided a pyrazole derivative of the formula ##STR1## wherein R.sub.1a, R.sub.1b and R.sub.1c are each a hydrogen atom, a halogen atom, a nitro group, an amino group, a (lower) alkyl group, a halo-(lower)alkyl group, a(lower)alkenyl group, a (lower)alkynyl group, a (lower)alkylcarbonylamino group, a (lower)alkoxycarbonylamino group, a mono-(lower) alkylaminocarbonylamino group or a di-(lower)alkylaminocarbonylamino group;R.sub.2 is a hydrogen atom, a (lower)alkyl group, a (lower)alkenyl group, a (lower)alkynyl group, a (lower) alkoxy(lower)alkyl group, a (lower)alkylthio(lower)alkyl group, a (lower)alkylcarbonyl(lowr)alkyl group, a (lower) alkoxycarbonyl(lower)alkyl group, a (lower)alkylthiocarbonyl(lower)alkyl group, a cyano(lower)alkyl group, a (lower)alkylsulfonyl group, phenylsulfonyl group, a halogen-substituted phenylsulfonyl group or a (lower) alkyl-substituted phenylsulfonyl group, andX and Y are the same or different and each are a halogen atom.
    Type: Grant
    Filed: May 8, 1986
    Date of Patent: June 21, 1988
    Assignee: Hokko Chemical Industry Co., Ltd.
    Inventors: Hiroshi Ohyama, Toshiharu Ono, Takuro Shimozono, Teruhiko Terakawa
  • Patent number: 4512989
    Abstract: A new 1,2,4-triazole compound is now provided, which is represented by the general formula ##STR1## wherein X may be the same or different and denotes a halogen atom, a (C.sub.1 -C.sub.4)alkyl group, a (C.sub.1 -C.sub.4)alkoxyl group, a (C.sub.1 -C.sub.4)alkylthio group, a (C.sub.1 -C.sub.4) alkylsulfinyl group, a (C.sub.1 -C.sub.4)alkylsulfonyl group, a trifluoromethyl group, a nitro group or a cyano group;n is an integer of 0 to 5;R denotes a (C.sub.1 -C.sub.4)alkyl group, a (C.sub.2 -C.sub.4)alkenyl group, a (C.sub.2 -C.sub.4)alkynyl group, a (C.sub.1 -C.sub.4)alkoxy-(C.sub.1 -C.sub.4)alkyl group, a (C.sub.1 -C.sub.4)alkylthio-(C.sub.1 -C.sub.4)alkyl group, a (C.sub.3 -C.sub.6)cycloalkyl group, a (C.sub.3 -C.sub.6)cycloalkyl-(C.sub.1 -C.sub.4)alkyl group, a substituted or unsubstituted phenyl group, or a phenyl(C.sub.1 -C.sub.4)alkyl group of which the phenyl may optionally bear up to three substituents,Y denotes an oxygen atom or a sulfur atom; andZ denotes a linear or branched (C.sub.1 -C.sub.
    Type: Grant
    Filed: October 8, 1982
    Date of Patent: April 23, 1985
    Assignee: Hokko Chemical Industry Co., Ltd.
    Inventors: Hiroshi Ohyama, Ken Morita, Takuo Wada, Masahiko Miyahara
  • Patent number: 4447259
    Abstract: New 2-(substituted-phenoxy)propionic acid derivatives are provided, which have the structure of the general formula: ##STR1## and R.sub.2 is a hydrogen atom or a lower alkyl group. They have a high herbicidal activity to weeds, particularly graminaceous weeds, while they have little or no phytotoxicity to broad leaved crop plants and are therefore useful as selective herbicide.
    Type: Grant
    Filed: December 8, 1982
    Date of Patent: May 8, 1984
    Assignee: Hokko Chemical Industry Co., Ltd.
    Inventors: Hiroshi Ohyama, Sanae Takada, Ken Morita, Saburo Yamamura
  • Patent number: 4420486
    Abstract: Certain new 5,6,7-trichlorobenzoxazolone derivatives are highly active against a wide range of plant fungal and bacterial diseases and have a reduced phytotoxicity. These derivatives are also useful to control the growth of various fungi and bacteria being capable of deteriorating industrial materials.
    Type: Grant
    Filed: January 22, 1981
    Date of Patent: December 13, 1983
    Assignee: Hokko Chemical Industry Co., Ltd.
    Inventors: Hiroshi Ohyama, Kimiyoshi Kaneko, Hiromichi Ishikawa, Sanae Takada, Ken Morita, Takuo Wada, Masahiko Miyahara, Masazumi Arakawa
  • Patent number: 4405743
    Abstract: The present invention relates to pyrazolylpyrimidine derivatives of the formula ##STR1## wherein X, R.sub.1, R.sub.2 and R.sub.3 are as herein defined. These compounds are useful as fungicides in agriculture and horticulture.
    Type: Grant
    Filed: October 15, 1981
    Date of Patent: September 20, 1983
    Assignees: Hokko Chemical Industry Co., Ltd., Meiji Seika Kaisha Ltd.
    Inventors: Tamio Nishimura, Yoshiko Miyamoto, Hiroshi Ohyama, Hiroshi Yamamura, Ken Morita, Kuniomi Matsumoto, Tetsuro Watanabe
  • Patent number: 4391804
    Abstract: A new imidazole compound is now provided, which is represented by the general formula ##STR1## wherein R.sub.1 is naphthyl group, an arylalkyl group, a cycloalkyl group, a cycloalkylalkyl group, an alkyl group, a lower alkenyl group, a lower alkoxy-lower alkyl group or a phenylthio-lower alkyl group or phenyl group or a substituted phenyl group;R.sub.2 is an unsubstituted or substituted alkyl group or an alkenyl group or an alkynyl group, naphthyl group, or an unsubstituted or substituted phenyl group;X is an oxygen atom or a sulfur atom; andY is an unsubstituted or substituted alkylene group or an unsubstituted or substituted alkenylene group. The new imidazole compound and its salt show a usefully high fungicidal activity against a wide variety of fungi which infest crop plants. The new imidazole compound and its salt may be useful as fungicidal agent of agricultural and horticultural usages.
    Type: Grant
    Filed: March 16, 1982
    Date of Patent: July 5, 1983
    Assignee: Hokko Chemical Industry Company, Ltd.
    Inventors: Hiroshi Ohyama, Ken Morita, Takuo Wada, Masahiko Miyahara
  • Patent number: 4255183
    Abstract: The invention is 3-(4-crotyloxyphenyl)-1,1-dimethyl urea herbicidal compounds.
    Type: Grant
    Filed: June 15, 1978
    Date of Patent: March 10, 1981
    Assignee: Hokko Chemical Industry Co., Ltd.
    Inventors: Hiroshi Ohyama, Sanae Takada, Yoshihisa Watanabe, Jyotaroh Tamura, Iwao Taketomi
  • Patent number: 4122447
    Abstract: An endfire-type phased array antenna comprises n antenna elements (n.gtoreq.3). The difference of current flowing through the antenna elements is controlled to one which is pre-determined by adjusting each length of the feeders and by coupling the phase inverting circuits to alternate antenna elements. The current amplitude ratio thereof is also controlled to a pre-determined value by using a mixing or distributing circuit. Thus an antenna having a high directivity in front and no radiation in other directions is provided which can be effectively used for preventing multi-path interference in TV or FM.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: October 24, 1978
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yumio Kawai, Michio Ikenishi, Hiroshi Ohyama
  • Patent number: 3981016
    Abstract: An antenna apparatus for detecting an optimum directivity.
    Type: Grant
    Filed: January 7, 1975
    Date of Patent: September 14, 1976
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hideo Iwata, Hiroshi Ohyama, Atsushi Oyama