Patents by Inventor Satsuo Sato
Satsuo Sato 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: 8230606Abstract: The electric tool includes a base having an opening portion and a bottom face; a blade being projected downward from the bottom face of the base through the opening portion of the base, the blade being capable of cutting while sliding the bottom face of the base on an upper face of a work piece; a motor driving the blade; a housing accommodating the motor. The bottom face of the base is at least partially coated with a resin including fluorine.Type: GrantFiled: June 13, 2005Date of Patent: July 31, 2012Assignee: Hitachi Koki Co., Ltd.Inventors: Kenichirou Yoshida, Yoshio Osada, Mizuho Nakamura, Satsuo Sato, Junichi Kamimura, Takashi Kawamata
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Publication number: 20050274028Abstract: The electric tool includes a base having an opening portion and a bottom face; a blade being projected downward from the bottom face of the base through the opening portion of the base, the blade being capable of cutting while sliding the bottom face of the base on an upper face of a work piece; a motor driving the blade; a housing accommodating the motor. The bottom face of the base is at least partially coated with a resin including fluorine.Type: ApplicationFiled: June 13, 2005Publication date: December 15, 2005Applicant: Hitachi Koki Co., Ltd.Inventors: Kenichirou Yoshida, Yoshio Osaka, Mizuho Nakamura, Satsuo Sato, Junichi Kamimura, Takashi Kawamata
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Patent number: 6921009Abstract: A nailing machine, in which a part constituting a nose is changed so as to increase the service life of a driver blade for driving a nail. The nailing machine includes a nose having a nose hole in which the nail is supplied, and the driver blade made of metal. At least a part of a surface of the nose hole to be in contact with a front surface of the driver blade is provided with a protective body. The protective body is made of an organic material or a composite material of an organic material and a metal material. Due to this, direct mutual contact of the metal parts is prevented.Type: GrantFiled: October 25, 2002Date of Patent: July 26, 2005Assignee: Hitachi Koki Co., Ltd.Inventors: Satsuo Sato, Takuhiro Murakami, Kunio Yamamoto
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Patent number: 6863135Abstract: Disclosed is an electric power tool having a gear mechanism, which reduces a noise by absorbing collision of gears and is resistible to a high torque. A power transmission key 7 composed of high-strength plastic is provided between an output shaft 3 and a gear 4, and a plane or a V-groove is formed on each of the output shaft 3 and the gear 4 contacting the power transmission key 7.Type: GrantFiled: August 28, 2003Date of Patent: March 8, 2005Assignee: Hitachi Koki Co., Ltd.Inventors: Junichi Kamimura, Mitsuo Ogura, Mitsuyuki Ishikawa, Yoshimitsu Kawasaki, Juurou Kobayashi, Naoya Eto, Hiroto Inagawa, Takuhiro Murakami, Satsuo Sato, Yoshikazu Yokoyama
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Publication number: 20040040399Abstract: Disclosed is an electric power tool having a gear mechanism, which reduces a noise by absorbing collision of gears and is resistible to a high torque. A power transmission key 7 composed of high-strength plastic is provided between an output shaft 3 and a gear 4, and a plane or a V-groove is formed on each of the output shaft 3 and the gear 4 contacting the power transmission key 7.Type: ApplicationFiled: August 28, 2003Publication date: March 4, 2004Applicant: HITACHI KOKI CO., LTD.Inventors: Junichi Kamimura, Mitsuo Ogura, Mitsuyuki Ishikawa, Yoshimitsu Kawasaki, Juurou Kobayashi, Naoya Eto, Hiroto Inagawa, Takuhiro Murakami, Satsuo Sato, Yoshikazu Yokoyama
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Patent number: 6619410Abstract: Disclosed is an electric power tool having a gear mechanism, which reduces a noise by absorbing collision of gears and is resistible to a high torque. A power transmission key 7 composed of high-strength plastic is provided between an output shaft 3 and a gear 4, and a plane or a V-groove is formed on each of the output shaft 3 and the gear 4 contacting the power transmission key 7.Type: GrantFiled: August 6, 2001Date of Patent: September 16, 2003Assignee: Hitachi Koki Co., Ltd.Inventors: Junichi Kamimura, Mitsuo Ogura, Mitsuyuki Ishikawa, Yoshimitsu Kawasaki, Juurou Kobayashi, Naoya Eto, Hiroto Inagawa, Takuhiro Murakami, Satsuo Sato, Yoshikazu Yokoyama
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Publication number: 20030080171Abstract: A nailing machine, such as a pneumatic nailing machine, in which a part constituting a nose is changed so as to increase the service life of a driver blade for driving a nail. The nailing machine includes a nose having a nose hole in which the nail is supplied, and the driver blade made of metal. At least a part of a surface of the nose hole to be in contact with a front surface of the driver blade is provided with a protective body. The protective body is made of an organic material or a composite material of an organic material and a metal material. Due to this, direct mutual contact of the metal parts is prevented.Type: ApplicationFiled: October 25, 2002Publication date: May 1, 2003Applicant: Hitachi Koki Co., Ltd.Inventors: Satsuo Sato, Takuhiro Murakami, Kunio Yamamoto
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Publication number: 20020020540Abstract: Disclosed is an electric power tool having a gear mechanism, which reduces a noise by absorbing collision of gears and is resistible to a high torque. A power transmission key 7 composed of high-strength plastic is provided between an output shaft 3 and a gear 4, and a plane or a V-groove is formed on each of the output shaft 3 and the gear 4 contacting the power transmission key 7.Type: ApplicationFiled: August 6, 2001Publication date: February 21, 2002Inventors: Junichi Kamimura, Mitsuo Ogura, Mitsuyuki Ishikawa, Yoshimitsu Kawasaki, Juurou Kobayashi, Naoya Eto, Hiroto Inagawa, Takuhiro Murakami, Satsuo Sato, Yoshikazu Yokoyama
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Patent number: 5558571Abstract: A grinder has a grinding member. The grinder includes a rotatable spindle having an engagement portion. A first flange engages the engagement portion of the spindle. The first flange and the engagement portion of the spindle define a given play therebetween in a direction of rotation. The grinding member is held between the first flange and a second flange. A lubricant solid material is provided between the first flange and the engagement portion of the spindle.Type: GrantFiled: June 17, 1994Date of Patent: September 24, 1996Assignee: Hitachi Koki Company LimitedInventors: Takeshi Toyoshima, Yo Kawakami, Hiroyasu Ishikawa, Takao Abe, Satsuo Sato, Nobuhiro Noto, Tadahiro Kaneko, Takayoshi Kaneta, Juurou Kobayahsi, Osamu Kawanobe