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).
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Patent number: 6428425Abstract: 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: GrantFiled: September 13, 1999Date of Patent: August 6, 2002Assignee: Mizuno CorporationInventors: Takeshi Naruo, Koji Sakai, Yoshihiro Fujikawa
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Patent number: 6412964Abstract: 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: GrantFiled: April 4, 2001Date of Patent: July 2, 2002Assignee: Kabushiki Kaisha Tokai-Rika-Denki-SeisakushoInventors: Yasunori Hattori, Hiroki Iwasa, Yoshihiro Fujikawa, Masayuki Noda
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Publication number: 20010051548Abstract: 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: ApplicationFiled: April 30, 2001Publication date: December 13, 2001Inventors: Mototaka Iwata, Kenji Onoda, Koji Sakai, Yukihiro Teranishi, Takeshi Naruo, Kazuhiro Ohmori, Yoshihiro Fujikawa
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Patent number: 6330101Abstract: 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: GrantFiled: October 27, 1999Date of Patent: December 11, 2001Assignee: Murakami CorporationInventors: Tetsuya Yamamoto, Mitsuyoshi Nagao, Hidenori Sato, Yoshihiro Fujikawa
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Publication number: 20010030872Abstract: 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: ApplicationFiled: April 5, 2001Publication date: October 18, 2001Inventors: Masato Sakamoto, Yoshihiro Fujikawa, Masayuki Noda, Kikuhiro Ohsawa
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Publication number: 20010030819Abstract: 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: ApplicationFiled: April 4, 2001Publication date: October 18, 2001Inventors: Yasunori Hattori, Hiroki Iwasa, Yoshihiro Fujikawa, Masayuki Noda
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Publication number: 20010001773Abstract: 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: ApplicationFiled: December 1, 2000Publication date: May 24, 2001Applicant: Mizuno CorporationInventors: Takeshi Naruo, Koji Sakai, Yoshihiro Fujikawa
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Publication number: 20010000337Abstract: 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: ApplicationFiled: December 1, 2000Publication date: April 19, 2001Applicant: Mizuno CorporationInventors: Takeshi Naruo, Koji Sakai, Yoshihiro Fujikawa
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Patent number: 5872130Abstract: 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: GrantFiled: December 19, 1990Date of Patent: February 16, 1999Assignee: Nissan Chemical Industries Ltd.Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
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Patent number: 5856336Abstract: 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: GrantFiled: May 15, 1992Date of Patent: January 5, 1999Assignee: Nissan Chemical Industries Ltd.Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
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Patent number: 5854259Abstract: 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: GrantFiled: November 19, 1992Date of Patent: December 29, 1998Assignee: Nissan Chemical Industries Ltd.Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
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Patent number: 5137891Abstract: 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: GrantFiled: June 14, 1991Date of Patent: August 11, 1992Assignee: Nissan Chemical Industries Ltd.Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
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Patent number: 5102888Abstract: 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: GrantFiled: February 23, 1990Date of Patent: April 7, 1992Assignee: Nissan Chemical Industries Ltd.Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
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Patent number: 5055472Abstract: 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: GrantFiled: October 25, 1989Date of Patent: October 8, 1991Assignee: Nissan Chemical Industries, Ltd.Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
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Patent number: 5026698Abstract: 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: GrantFiled: October 19, 1989Date of Patent: June 25, 1991Assignee: Nissan Chemical Industries, Ltd.Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
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Patent number: 5026708Abstract: 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: GrantFiled: September 12, 1988Date of Patent: June 25, 1991Assignee: Nissan Chemical Industries Ltd.Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
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Patent number: 5024999Abstract: 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: GrantFiled: April 13, 1989Date of Patent: June 18, 1991Assignee: Nissan Chemical Industries Ltd.Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kirahara
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Patent number: 5011930Abstract: 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: GrantFiled: February 23, 1990Date of Patent: April 30, 1991Assignee: Nissan Chemical Industries Ltd.Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
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Patent number: 4977161Abstract: 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: GrantFiled: November 13, 1989Date of Patent: December 11, 1990Assignee: Nissan Chemical Industries, Ltd.Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kitahara
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Patent number: 4841068Abstract: 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: GrantFiled: February 19, 1987Date of Patent: June 20, 1989Assignee: Nissan Chemical Industries, Ltd.Inventors: Yoshihiro Fujikawa, Masazumi Wakamatsu, Mariko Fukui, Tadashi Miyasaka