Patents by Inventor Kazuo Nimura
Kazuo Nimura 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: 8445123Abstract: A magnetic recording medium having high bonding capability between the surface lubricant and the diamond-like carbon (DLC) protective layer in the surface of the magnetic recording medium is disclosed. The lubricant is a fluorine-containing lubricant for magnetic recording media represented by the following formula (1), (2) or (3), wherein the substituents R1, R2, R3, R4, R5 and R6 in the terminal part of the lubricant each independently represent an organic group, and at least one of the substituents R1 and R2, at least one of the substituents R3 and R4, and at least one of the substituents R5 and R6 each have an isocyanate group: Also disclosed is a magnetic recording medium using the lubricant.Type: GrantFiled: March 19, 2009Date of Patent: May 21, 2013Assignee: Fuji Electric Co., Ltd.Inventors: Takeshi Watanabe, Kunihiro Imai, Akira Furuta, Kazuo Nimura, Hideki Kina
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Publication number: 20090239099Abstract: A magnetic recording medium having high bonding capability between the surface lubricant and the diamond-like carbon (DLC) protective layer in the surface of the magnetic recording medium is disclosed. The lubricant is a fluorine-containing lubricant for magnetic recording media represented by the following formula (1), (2) or (3), wherein the substituents R1, R2, R3, R4, R5 and R6 in the terminal part of the lubricant each independently represent an organic group, and at least one of the substituents R1 and R2, at least one of the substituents R3 and R4, and at least one of the substituents R5 and R6 each have an isocyanate group: Also disclosed is a magnetic recording medium using the lubricant.Type: ApplicationFiled: March 19, 2009Publication date: September 24, 2009Applicant: FUJI ELECTRIC DEVICE TECHNOLOGY CO., LTD.Inventors: Takeshi WATANABE, Kunihiro IMAI, Akira FURUTA, Kazuo NIMURA, Hideki KINA
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Patent number: 7428828Abstract: A press die and a molding process can form a disk member having a shaft shaped portion at a center with satisfactory circularity and flatness in a disk portion, dimensional precision in the shaft shaped portion, and concentricity between the disk portion and the shaft shaped portion at the center. The press die is designed for press molding of a glass substrate of a disk member with a shaft shaped portion at a center thereof. The press die includes an upper die forming an upper surface of the disk member, an intermediate die having a shaft forming hole portion for forming a shaft shaped portion projecting from a disk portion of the disk member, a lower die for forming a lower surface of the shaft shaped portion and a guide member for guiding the upper die, the intermediate die and the lower die.Type: GrantFiled: December 15, 2005Date of Patent: September 30, 2008Assignee: Fuji Electric Device Technology Co., Ltd.Inventors: Tatsumi Kawata, Kazuo Nimura, Kengo Kainuma, Kunio Hibino, Hidenao Kataoka
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Publication number: 20060096383Abstract: A lead wire routing structure for a pressure-sensitive sensor of a vehicle door includes a lead wire connected to a pressure-sensitive sensor that is attached along an edge of a door and positioned within the door by penetrating through a through-hole formed on the door, wherein the lead wire arranged from the pressure-sensitive sensor to the through-hole, and the through-hole are covered by a cover portion integrally formed on the pressure-sensitive sensor.Type: ApplicationFiled: November 8, 2005Publication date: May 11, 2006Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Tokihiko Yamamoto, Kazuo Nimura
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Publication number: 20060090517Abstract: A press die and a molding process can form a disk member having a shaft shaped portion at a center with satisfactory circularity and flatness in a disk portion, dimensional precision in the shaft shaped portion, and concentricity between the disk portion and the shaft shaped portion at the center. The press die is designed for press molding of a glass substrate of a disk member with a shaft shaped portion at a center thereof. The press die includes an upper die forming an upper surface of the disk member, an intermediate die having a shaft forming hole portion for forming a shaft shaped portion projecting from a disk portion of the disk member, a lower die for forming a lower surface of the shaft shaped portion and a guide member for guiding the upper die, the intermediate die and the lower die.Type: ApplicationFiled: December 15, 2005Publication date: May 4, 2006Applicants: Fuji Electric Co., Ltd., Matsushita Electric Industrial Co., Ltd.Inventors: Tatsumi Kawata, Kazuo Nimura, Kengo Kainuma, Kunio Hibino, Hidenao Kataoka
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Patent number: 6997019Abstract: A press die and a molding process can form a disk member having a shaft shaped portion at a center with satisfactory circularity and flatness in a disk portion, dimensional precision in the shaft shaped portion, and concentricity between the disk portion and the shaft shaped portion at the center. The press die is designed for press molding of a glass substrate of a disk member with a shaft shaped portion at a center thereof. The press die includes an upper die forming an upper surface of the disk member, an intermediate die having a shaft forming hole portion for forming a shaft shaped portion projecting from a disk portion of the disk member, a lower die for forming a lower surface of the shaft shaped portion and a guide member for guiding the upper die, the intermediate die and the lower die.Type: GrantFiled: May 9, 2002Date of Patent: February 14, 2006Assignees: Fuji Electric Co., Ltd., Matsushita Electric Industrial Co., Ltd.Inventors: Tatsumi Kawata, Kazuo Nimura, Kengo Kainuma, Kunio Hibino, Hidenao Kataoka
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Patent number: 6955079Abstract: In a foreign material detector for a sliding door, a pressure sensor is disposed being offset toward a vehicle interior side and a substantial vehicle front side of a hem and being offset toward a substantial vehicle exterior side with respect to a position supported by a bracket as well, in order for the foreign material to be detected, even though a direction of a reaction force effected from a foreign material is tilted and intersected with respect to a moving direction of the sliding door.Type: GrantFiled: February 7, 2002Date of Patent: October 18, 2005Assignees: Asmo Co., Ltd., Toyota Shatai Kabushiki KaishaInventors: Hidenori Ishihara, Hirokazu Tsuda, Kenji Kato, Kazuo Nimura
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Patent number: 6613459Abstract: A master magnetic information carrier has embedded magnetic films that are free from protrusion and recess. The master disk is fabricated by the steps of laminating Co-based soft magnetic film on a resin base plate, forming isolated magnetic films in predetermined region by patterning the magnetic film, pressing a die from above the isolated magnetic films while heating the base plate with the magnetic films thereon, and releasing the die. Since the master disk is a mold product fabricated by pressing the die, the embedded magnetic films and the resin surface portion surrounding the magnetic films are intimately adjoined and protrusions and recesses at the boundary between them are suppressed to a minimum. The surface of the master disk is so smooth and flat that generation of flaws and gouges on the magnetic recording medium and transfer of particles and chemical contaminants to the recording medium in the contact duplication process are reduced.Type: GrantFiled: July 17, 2000Date of Patent: September 2, 2003Assignee: Fuji Electric Co., Ltd.Inventors: Akira Saito, Kazuo Nimura, Akihiro Otsuki
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Publication number: 20020184921Abstract: A press die and a molding process can form a disk member having a shaft shaped portion at a center with satisfactory circularity and flatness in a disk portion, dimensional precision in the shaft shaped portion, and concentricity between the disk portion and the shaft shaped portion at the center. The press die is designed for press molding of a glass substrate of a disk member with a shaft shaped portion at a center thereof. The press die includes an upper die forming an upper surface of the disk member, an intermediate die having a shaft forming hole portion for forming a shaft shaped portion projecting from a disk portion of the disk member, a lower die for forming a lower surface of the shaft shaped portion and a guide member for guiding the upper die, the intermediate die and the lower die.Type: ApplicationFiled: May 9, 2002Publication date: December 12, 2002Inventors: Tatsumi Kawata, Kazuo Nimura, Kengo Kainuma, Kunio Hibino, Hidenao Kataoka
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Publication number: 20020104373Abstract: In a foreign material detector for a sliding door, a pressure sensor is disposed being offset toward a vehicle interior side and a substantial vehicle front side of a hem and being offset toward a substantial vehicle exterior side with respect to a position supported by a bracket as well, in order for the foreign material to be detected, even though a direction of a reaction force effected from a foreign material is tilted and intersected with respect to a moving direction of the sliding door.Type: ApplicationFiled: February 7, 2002Publication date: August 8, 2002Applicant: Asmo Co., Ltd.Inventors: Hidenori Ishihara, Hirokazu Tsuda, Kenji Kato, Kazuo Nimura
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Patent number: 6194025Abstract: A lubricant film is formed on the surface of a substrate of a magnetic recording medium. The substrate consists of a non-magnetic base layer, a magnetic layer and a protective film, in that order. The substrate is immersed in a lubricant solution in a sealed container. The sealed container is pressurized with an inert gas introduced in the sealed container. The lubricant solution is then discharged, thereby forming a lubricant film on the surface of the protective film. Lubricant film thickness is varied by controlling a discharge rate, either by controlling the gas pressure, or the outflow rate of the lubricant solution.Type: GrantFiled: January 28, 2000Date of Patent: February 27, 2001Assignee: Fuji Electric Co., Ltd.Inventor: Kazuo Nimura
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Patent number: 5614314Abstract: A magnetic recording medium and a method for the manufacture thereof are disclosed that are less likely to result in head crushing even if high-hardness slider materials are used, and which is formed with a carbon protective layer that has good anti-CSS characteristics. The carbon protective layer is formed using a sputtering gas mixed with methane at a greater amount than predetermined to form a carbon protective layer in which diamond bonds are present at a higher ratio than graphite bonds, and polymeric bonds are present to an adequate degree. A magnetic recording medium having such a carbon protective layer shows a very high durability in a CSS cycle test.Type: GrantFiled: October 28, 1993Date of Patent: March 25, 1997Assignee: Fuji Electric Co., Ltd.Inventors: Yoshiaki Itoh, Michio Osawa, Youichi Tei, Yoshiharu Kashiwakura, Michinori Nishimura, Kazuo Nimura
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Patent number: 5576111Abstract: A surface of a non-magnetic base plate is first coarsened to a required surface roughness and an ultrasonic vibration is then applied to the surface of the non-magnetic base plate while the nonmagnetic base plate is immersed in a liquid. Thereafter, a magnetic recording layer and a protective layer are successively formed on the surface of the non-magnetic base plate thereby to produce a magnetic recording medium. It is preferable that the frequency of a ultrasonic is within a range from 200 kHz to 1600 kHz. Surface fractional properties of the magnetic recording medium can adequately be controlled without variation of floatation height of a magnetic head during its running by varying an ultrasonic oscillation output and an ultrasonic processing time.Type: GrantFiled: July 22, 1994Date of Patent: November 19, 1996Assignee: Fuji Electric Co., Ltd.Inventors: Katsumi Onodera, Koji Ito, Manabu Koike, Tamotsu Hatakoshi, Kazuyoshi Tomita, Kazuo Nimura
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Patent number: 5232750Abstract: A surface of a non-magnetic base plate is first coarsened to a required surface roughness and an ultrasonic vibration is then applied to the surface of the non-magnetic base plate while the non-magnetic base plate is immersed in a liquid. Thereafter, a magnetic recording layer and a protective layer are successively formed on the surface of the non-magnetic base plate thereby to produce a magnetic recording medium. It is preferable that the frequency of a ultrasonic vibration is within a range from 200 kHz to 1600 kHz. Surface fractional properties of the magnetic recording medium can adequately be controlled without variation of the floatation height of a magnetic head during its running by varying an ultrasonic oscillation output and an ultrasonic processing time.Type: GrantFiled: September 16, 1991Date of Patent: August 3, 1993Assignee: Fuji Electric Co., Ltd.Inventors: Katsumi Onodera, Koji Ito, Manabu Koike, Tamotsu Hatakoshi, Kazuyoshi Tomita, Kazuo Nimura