Patents by Inventor Yoshihiro Fujikawa

Yoshihiro Fujikawa 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: 6428425
    Abstract: In the metal iron golf club head (1), the rigidity of the medium sensitivity region (5) which is a region on the heel side and excluding the vicinity of the face center (3) is made lower than the rigidity of the low sensitivity region (4) so as to approximate the natural frequency of the metal iron golf club head to the natural frequency of the ball as well as to ensure the strength in the face portion (2).
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: August 6, 2002
    Assignee: Mizuno Corporation
    Inventors: Takeshi Naruo, Koji Sakai, Yoshihiro Fujikawa
  • Patent number: 6412964
    Abstract: A door mirror structure is provided which can improve assembly workability of a door mirror. A cord is pulled out from a base end portion of a door mirror body. In an overhanging portion of a door mirror base, a slot is formed in place of a conventional cord insertion hole. Therefore, at a door mirror assembly line, the cord can easily be inserted into the slot from an arrow A direction. As a result, the assembly workability of the door mirror can be improved.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: July 2, 2002
    Assignee: Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
    Inventors: Yasunori Hattori, Hiroki Iwasa, Yoshihiro Fujikawa, Masayuki Noda
  • Publication number: 20010051548
    Abstract: The inventive golf club comprises a head of a metal having a face and a flexural range, defined in the face, where the quantity of flexure in a direction perpendicular to the face is at least 45% of the maximum quantity of vertical flexure of the face. The flexural range is arranged in coincidence with a hitting spot distribution range of a player in the face. Alternatively, a flexural range having a spring constant of at least 2 kN/mm and not more than 4 kN/mm is present in the face of the inventive golf club.
    Type: Application
    Filed: April 30, 2001
    Publication date: December 13, 2001
    Inventors: Mototaka Iwata, Kenji Onoda, Koji Sakai, Yukihiro Teranishi, Takeshi Naruo, Kazuhiro Ohmori, Yoshihiro Fujikawa
  • Patent number: 6330101
    Abstract: An EC panel drive unit for a rear-view mirror comprising a timer circuit 2 in which a drive signal is output for a fixed period of time when either a colored state switch SW1 or a colorless state switch SW2 is in the ON position; a D-type flip-flop circuit 9 that sends different output signals, depending on whether the colored state switch SW1 is in the ON position or the colorless state switch SW2 is in the ON position, and a colored/colorless state switching circuit 6 which switches the polarity of DC voltage that is output from a lithium battery based on the output from the D-type flip-flop circuit 9 and then applies the voltage to input terminals Ta and Tb of the EC panel 7. A contact SW2-3 is installed between the two input terminals, Ta and Tb, of the EC panel 7 for providing a short circuit between the two terminals when the colorless state switch SW2 is turned to the ON position.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: December 11, 2001
    Assignee: Murakami Corporation
    Inventors: Tetsuya Yamamoto, Mitsuyoshi Nagao, Hidenori Sato, Yoshihiro Fujikawa
  • Publication number: 20010030872
    Abstract: A mirror assembly for a vehicle, the assembly being provided a mirror, a light assembly having a lens, a visor for accommodating the mirror and the light assembly, with the visor having a visor opening into which the lens is fitted, a connection element for movably connecting an end of the visor opening and an end of the lens, and a bias element for biasing the light assembly such that the visor opening is substantially closed with the lens.
    Type: Application
    Filed: April 5, 2001
    Publication date: October 18, 2001
    Inventors: Masato Sakamoto, Yoshihiro Fujikawa, Masayuki Noda, Kikuhiro Ohsawa
  • Publication number: 20010030819
    Abstract: A door mirror structure is provided which can improve assembly workability of a door mirror. A cord is pulled out from a base end portion of a door mirror body. In an overhanging portion of a door mirror base, a slot is formed in place of a conventional cord insertion hole. Therefore, at a door mirror assembly line, the cord can easily be inserted into the slot from an arrow A direction. As a result, the assembly workability of the door mirror can be improved.
    Type: Application
    Filed: April 4, 2001
    Publication date: October 18, 2001
    Inventors: Yasunori Hattori, Hiroki Iwasa, Yoshihiro Fujikawa, Masayuki Noda
  • Publication number: 20010001773
    Abstract: In the metal iron golf club head (1), the rigidity of the medium sensitivity region (5) which is a region on the heel side and excluding the vicinity of the face center (3) is made lower than the rigidity of the low sensitivity region (4) so as to approximate the natural frequency of the metal iron golf club head to the natural frequency of the ball as well as to ensure the strength in the face portion (2).
    Type: Application
    Filed: December 1, 2000
    Publication date: May 24, 2001
    Applicant: Mizuno Corporation
    Inventors: Takeshi Naruo, Koji Sakai, Yoshihiro Fujikawa
  • Publication number: 20010000337
    Abstract: In the metal iron golf club head (1), the rigidity of the medium sensitivity region (5) which is a region on the heel side and excluding the vicinity of the face center (3) is made lower than the rigidity of the low sensitivity region (4) so as to approximate the natural frequency of the metal iron golf club head to the natural frequency of the ball as well as to ensure the strength in the face portion (2).
    Type: Application
    Filed: December 1, 2000
    Publication date: April 19, 2001
    Applicant: Mizuno Corporation
    Inventors: Takeshi Naruo, Koji Sakai, Yoshihiro Fujikawa
  • Patent number: 5872130
    Abstract: Described herein are mevalonolactone derivatives having a quinoline ring of formula (I) ##STR1## wherein the R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, Y and Z variables are described therein.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: February 16, 1999
    Assignee: Nissan Chemical Industries Ltd.
    Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
  • Patent number: 5856336
    Abstract: A compound of the formula ##STR1## Z=--CH(OH)--CH.sub.2 --CH(OH)--CH.sub.2 --COO.1/2Ca have HMG--CoA inhibiting effects, making them useful as inhibitors of cholesterol biosynthesis. The compound may be prepared as a pharmaceutical for reducing hyperlipidemia, hyperlipoproteinemia or atherosclerosis.
    Type: Grant
    Filed: May 15, 1992
    Date of Patent: January 5, 1999
    Assignee: Nissan Chemical Industries Ltd.
    Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
  • Patent number: 5854259
    Abstract: Described herein are mevalonolactone derivatives having a quinoline ring of formula (I) ##STR1## wherein the R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, Y and Z variables are described therein.
    Type: Grant
    Filed: November 19, 1992
    Date of Patent: December 29, 1998
    Assignee: Nissan Chemical Industries Ltd.
    Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
  • Patent number: 5137891
    Abstract: The present invention provides a compound of the formula: ##STR1## process for their production, pharmaceutical compositions containing them and their pharmaceutical uses, and intermediates useful for their production and processes for the production of such intermediates.
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: August 11, 1992
    Assignee: Nissan Chemical Industries Ltd.
    Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
  • Patent number: 5102888
    Abstract: A compound of the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.6 are independently hydrogen, C.sub.1-6 alkyl, C.sub.1-6 cycloalkyl, C.sub.1-3 alkoxy, n-botoxy, i-botoxy, sec-butoxy, R.sup.7 R.sup.8 N-- (wherein R.sup.7 and R.sup.8 are independently hydrogen or C.sub.1-3 alkyl), trifluoromethyl, trifluoromethoxy, difluoromethoxy, fluoro, chloro, bromo, phenyl, phenoxy, benzyloxy, hydroxy, trimethylsilyloxy, diphenyl-t-butylsilyloxy, hydroxymethyl or --O(CH.sub.2).sub.l OR.sup.19 (wherein R.sup.19 is hydrogen or C.sub.1-3 alkyl, and l is 1,2 or 3); or when located at the ortho position to each other, R.sup.1 and R.sup.2, or R.sup.3 and R.sup.4 together form --CH.dbd.CH--CH.dbd.CH--; or when located at the ortho position to each other, R.sup.1 and R.sup.2 together form --OC(R.sup.15) (R.sup.16)O--(wherein R.sup.15 and R.sup.16 are independently hydrogen or C.sub.1-3 alkyl); Y is --CH.sub.2 --, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --CH.sub.2 --CH.dbd.CH-- or -- CH.dbd.CH--CH.sub.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: April 7, 1992
    Assignee: Nissan Chemical Industries Ltd.
    Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
  • Patent number: 5055472
    Abstract: The present invention provides a compound of the formula: ##STR1## process for their production, pharmaceutical compositions containing them and their pharmaceutical uses, and intermediates useful for their production and processes for the production of such intermediates.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: October 8, 1991
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
  • Patent number: 5026698
    Abstract: The present invention provides a compound of the formula: ##STR1## process for their production, pharmaceutical compositions containing them and their pharmaceutical uses, and intermediates useful for their production and processes for the production of such intermediates.
    Type: Grant
    Filed: October 19, 1989
    Date of Patent: June 25, 1991
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
  • Patent number: 5026708
    Abstract: A compound of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, C.sub.1-6 alkyl, C.sub.3-6 cycloalkyl, C.sub.1-3 alkoxy, n-butoxy, i-butoxy, sec-butoxy, R.sup.5 R.sup.6 N-- (wherein R.sup.5 and R.sup.6 are independently hydrogen or C.sub.1-3 alkyl), trifluoromethyl, trifluoromethoxy, difluoromethoxy, fluoro, chloro, bromo, phenyl, phenoxy, benzyloxy, hydroxy, trimethylsilyloxy, diphenyl-t-butylsilyloxy, hydroxymethyl or --O(CH.sub.2).sub.l OR.sup.15 (wherein R.sup.15 is hydrogen or C.sub.1-3 alkyl, and l is 1, 2 or 3); or when located at the ortho position to each other, R.sup.1 and R.sup.2 together form --CH.dbd.CH--CH.dbd.CH-- or methylene dioxy; Y is --CH.sub.2 --, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --CH.sub.2 --CH.dbd.CH-- or --CH.dbd.CH--CH.sub.2 --; Z is --Q--CH.sub.2 WCH.sub.2 --CO.sub.2 R.sup.12, ##STR2## (wherein Q is --C(O)--, --C(OR.sup.13).sub.2 -- or --CH(OH)--; W is --C(O)--, --C(OR.sup.13).sub.2 -- or --C(R.sup.11) (OH)--; R.sup.11 is hydrogen or C.sub.
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: June 25, 1991
    Assignee: Nissan Chemical Industries Ltd.
    Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
  • Patent number: 5024999
    Abstract: The present invention provides a compound of the formula: ##STR1## process for their production, pharmaceutical compositions containing them and their pharmaceutical uses, and intermediates useful for their production and processes for the production of such intermediates.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: June 18, 1991
    Assignee: Nissan Chemical Industries Ltd.
    Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kirahara
  • Patent number: 5011930
    Abstract: A compound of the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.6 are independently hydrogen, C.sub.1-6 alkyl, C.sub.1-6 cycloalkyl, C.sub.1-3 alkoxy, n-botoxy, i-botoxy, sec-butoxy, R.sup.7 R.sup.8 N-- (wherein R.sup.7 and R.sup.8 are independently hydrogen or C.sub.1-3 alkyl), trifluoromethyl, trifluoromethoxy, difluoromethoxy, fluoro, chloro, bromo, phenyl, phenoxy, benzyloxy, hydroxy, trimethylsilyloxy, diphenyl-t-butylsilyloxy, hydroxymethyl or --O(CH.sub.2).sub.l OR.sup.19 (wherein R.sup.19 is hydrogen or C.sub.1-3 alkyl, and l is 1,2 or 3); or when located at the ortho position to each other, R.sup.1 and R.sup.2, and R.sup.3 and R.sup.4 together form --CH.dbd.CH--CH.dbd.CH--; or when located at the ortho position to each other, R.sup.1 and R.sup.2 together form --OC(R.sup.15)(R.sup.16)O-- (wherein R.sup.15 and R.sup.16 are independently hydrogen or C.sub.1-3 alkyl); Y is --CH.sub.2 --, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --CH.sub.2 CH.dbd.CH-- or --CH.dbd.CH-- CH.sub.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: April 30, 1991
    Assignee: Nissan Chemical Industries Ltd.
    Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
  • Patent number: 4977161
    Abstract: The present invention provides a compound of the formula: ##STR1## process for their production, pharmaceutical compositions containing them and their pharmaceutical uses, and intermediates useful for their production and processes for the production of such intermediates. The compounds are used as anti-hyperlipoproteinemic agents for example.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: December 11, 1990
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
  • Patent number: 4841068
    Abstract: Disclosed is a process for preparing a 3-hydroxy-7-mercaptopyrazolo[4,3-d]pyrimidine compound represented by the general formula (IX): ##STR1## wherein R.sup.1 is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a phenyl group or a substituted phenyl group, which comprises:from a pyrazole compound represented by the general formula (III): ##STR2## wherein R.sup.1 is the same as defined above. Also disclosed are pyrazole compounds represented by the general formula (I): ##STR3## The compounds serve as intermediate for preparing the compound of the formula (IX).
    Type: Grant
    Filed: February 19, 1987
    Date of Patent: June 20, 1989
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Yoshihiro Fujikawa, Masazumi Wakamatsu, Mariko Fukui, Tadashi Miyasaka