Patents by Inventor Takayasu Yamazaki
Takayasu Yamazaki 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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Optical film having antistatic layer, antireflection film, polarizing plate and image display device
Publication number: 20120075706Abstract: An optical film having a transparent support having thereon at least a hardcoat layer and an antistatic layer in this order, wherein the hardcoat layer and the antistatic layer are formed by simultaneously coating compositions for forming respective layers, the antistatic layer comprises at least (A) an electrically conductive organic compound and (B) a polyfunctional monomer having three or more polymerizable groups, a content of an inorganic oxide fine particle in the antistatic layer is less than 10 weight % based on an entire solid content of the antistatic layer, and a common logarithmic value (LogSR) of surface resistivity SR (?/sq) on the antistatic layer side with respect to the transparent support is 13 or less.Type: ApplicationFiled: September 28, 2011Publication date: March 29, 2012Applicant: FUJIFILM CorporationInventors: Daiki Wakizaka, Takayasu Yamazaki -
Patent number: 8133377Abstract: A photosensitive film, which has a transparent support and a silver salt emulsion layer containing a silver salt formed thereon, is exposed and developed to form a metallic silver portion. The base material to be plated is electrified in an electrolytic solution free of plating substances, using the metallic silver portion as a cathode. Then, the electrified base material is subjected to an electroless plating treatment to form a first plated layer only on the metallic silver portion. The base material is subjected to an electroplating treatment to form a second plated layer on the first plated layer, further form a third plated layer on the second plated layer.Type: GrantFiled: March 21, 2008Date of Patent: March 13, 2012Assignee: Fujifilm CorporationInventors: Kentaro Okazaki, Takayasu Yamazaki
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Patent number: 8034542Abstract: An electromagnetic shielding film for plasma display which is excellent in electromagnetic shielding characteristics for effectively shielding electromagnetic waves, near infrared rays, stray light, external light, and the like and even when stored under a wet heat condition, is small in change of color tint and good in adhesion, with a blackening layer hardly peeled away, is provided by a transparent electromagnetic shielding film including a transparent support having thereon a conductive metal layer in a pattern-like state having an electromagnetic shielding ability and having a surface covered by a blackening layer, with the blackening layer made of an alloy of nickel and zinc in a nickel/zinc mass ratio of from 0.5 to 50.Type: GrantFiled: March 28, 2007Date of Patent: October 11, 2011Assignee: FUJIFILM CorporationInventors: Hirotomo Sasaki, Jun Matsumoto, Takayasu Yamazaki, Akimitsu Haijima, Yoshihiro Fujita
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Publication number: 20110183110Abstract: An optical film is provided and includes: a cellulose acylate film; and an antistatic layer including a conductive compound having a hydrophilic property. The conductive compound is localized in an inside of the antistatic layer as compared to a surface-side region of the antistatic layer.Type: ApplicationFiled: December 28, 2010Publication date: July 28, 2011Applicant: FUJIFILM CorporationInventors: Takayasu Yamazaki, Kenichi Fukuda, Miho Asahi, Jun Watanabe
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Publication number: 20110049435Abstract: An optical film includes a transparent support and at least one antistatic layer formed from a composition containing an electrically conductive polymer, a polyfunctional monomer having two or more polymerizable groups, at least one compound selected from a compound represented by the formula (1) as defined herein, a compound represented by the formula (2) as defined herein and a trivalent phosphorus compound, and a photopolymerization initiator.Type: ApplicationFiled: September 1, 2010Publication date: March 3, 2011Applicant: FUJIFILM CorporationInventors: Daiki Wakizaka, Takayasu Yamazaki
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Publication number: 20100170710Abstract: An electromagnetic shielding film for plasma display which is excellent in electromagnetic shielding characteristics for effectively shielding electromagnetic waves, near infrared rays, stray light, external light, and the like and even when stored under a wet heat condition, is small in change of color tint and good in adhesion, with a blackening layer hardly peeled away, is provided by a transparent electromagnetic shielding film including a transparent support having thereon a conductive metal layer in a pattern-like state having an electromagnetic shielding ability and having a surface covered by a blackening layer, with the blackening layer made of an alloy of nickel and zinc in a nickel/zinc mass ratio of from 0.5 to 50.Type: ApplicationFiled: March 28, 2007Publication date: July 8, 2010Inventors: Hirotomo Sasaki, Jun Matsumoto, Takayasu Yamazaki, Akimitsu Haijima, Yoshihiro Fujita
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Patent number: 7631428Abstract: A rack and pinion steering apparatus which does not need quenching of the rack shaft after gear cutting of the rack shaft in manufacturing processes is provided. The rack and pinion steering apparatus comprises a pinion shaft and a rack shaft meshing with the pinion shaft. The rack shaft is formed to have a substantially uniform hardness.Type: GrantFiled: November 29, 2004Date of Patent: December 15, 2009Assignee: JTEKT CorporationInventors: Takayasu Yamazaki, Shirou Nakano, Hironori Yamato, Youjirou Kakoki
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Patent number: 7604088Abstract: An electric power steering system is provided which is capable of providing a favorable steering feeling without using compensation logics such as of inertia compensation and friction compensation. The electric power steering system includes road-noise suppression control means (213) for controlling a steering assist motor (9) in a manner to damp torque transmission in a higher frequency region representing road noises than a frequency region representing road information. A friction value of a steering mechanism (A) is decreased enough to allow the intrinsic vibrations of the steering mechanism (A) to appear. Rotor inertia of the steering assist motor (9) is set to a value small enough to allow the frequencies of the intrinsic vibrations to be present in the frequency region where the torque transmission is damped by the road-noise suppression control means (213).Type: GrantFiled: May 9, 2005Date of Patent: October 20, 2009Assignee: JTEKT CorporationInventors: Katsutoshi Nishizaki, Shirou Nakano, Ken Matsubara, Toshiaki Oya, Yasuhiro Kamatani, Masahiko Sakamaki, Yoshikazu Kuroumaru, Shigeki Nagase, Takayasu Yamazaki, Yasuhiro Saitou, Takeshi Ueda
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Patent number: 7441626Abstract: The present invention provides a rack-and-pinion steering apparatus capable of effectively reducing reverse input, while a high degree of design freedom is secured. The sum of the tilt angle of a rack tooth with respect to a reference line perpendicular to the axial line of a rack shaft and the tilt angle of a pinion tooth with respect to the axial line of a pinion shaft does not coincide with the tilt angle of the axial line of the pinion shaft with respect to the reference line. Crowning is given on the tooth surface of the rack tooth (or the pinion tooth) in order to decrease the tooth width on one end side in the direction of tooth trace and to increase the tooth width on the other end side according to the state of contact with the pinion tooth (or the rack tooth) opposed thereto.Type: GrantFiled: July 26, 2005Date of Patent: October 28, 2008Assignee: JTEKT CorporationInventors: Takayasu Yamazaki, Shirou Nakano
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Publication number: 20080230393Abstract: A photosensitive film, which has a transparent support and a silver salt emulsion layer containing a silver salt formed thereon, is exposed and developed to form a metallic silver portion. The base material to be plated is electrified in an electrolytic solution free of plating substances, using the metallic silver portion as a cathode. Then, the electrified base material is subjected to an electroless plating treatment to form a first plated layer only on the metallic silver portion. The base material is subjected to an electroplating treatment to form a second plated layer on the first plated layer, further form a third plated layer on the second plated layer.Type: ApplicationFiled: March 21, 2008Publication date: September 25, 2008Applicant: FUJIFILM CORPORATIONInventors: Kentaro Okazaki, Takayasu Yamazaki
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Publication number: 20080223163Abstract: A rack-and-pinion steering apparatus comprises pinion teeth formed according to proper tooth specifications in other aspects under a larger pressure angle, thereby stably offering smooth and comfortable steering feeling over a long time. The module (m), number of teeth (z), tooth depth(h) and helix angle (?) of the pinion teeth (4) are set within the following ranges, under a pressure angle (?) set within a range of 24° to 30° and a given stroke ratio. module (m): 1.8 to 2.0 number of teeth (z): 7 to 13 tooth depth (h): 2 m to 2.Type: ApplicationFiled: January 12, 2005Publication date: September 18, 2008Inventors: Takayasu Yamazaki, Shirou Nakano
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Publication number: 20070205041Abstract: An electric power steering system is provided which is capable of providing a favorable steering feeling without using compensation logics such as of inertia compensation and friction compensation. The electric power steering system includes road-noise suppression control means (213) for controlling a steering assist motor (9) in a manner to damp torque transmission in a higher frequency region representing road noises than a frequency region representing road information. A friction value of a steering mechanism (A) is decreased enough to allow the intrinsic vibrations of the steering mechanism (A) to appear. Rotor inertia of the steering assist motor (9) is set to a value small enough to allow the frequencies of the intrinsic vibrations to be present in the frequency region where the torque transmission is damped by the road-noise suppression control means (213).Type: ApplicationFiled: May 9, 2005Publication date: September 6, 2007Applicant: JTEKT CorporationInventors: Katsutoshi Nishizaki, Shirou Nakano, Ken Matsubara, Toshiaki Oya, Yasuhiro Kamatani, Masahiko Sakamaki, Yoshikazu Kuromaru, Shigeki Nagase, Takayasu Yamazaki, Yasuhiro Saitou, Takeshi Ueda
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Publication number: 20060042863Abstract: The present invention provides a rack-and-pinion steering apparatus capable of effectively reducing reverse input, while a high degree of design freedom is secured. The sum of the tilt angle of a rack tooth with respect to a reference line perpendicular to the axial line of a rack shaft and the tilt angle of a pinion tooth with respect to the axial line of a pinion shaft does not coincide with the tilt angle of the axial line of the pinion shaft with respect to the reference line. Crowning is given on the tooth surface of the rack tooth (or the pinion tooth) in order to decrease the tooth width on one end side in the direction of tooth trace and to increase the tooth width on the other end side according to the state of contact with the pinion tooth (or the rack tooth) opposed thereto.Type: ApplicationFiled: July 26, 2005Publication date: March 2, 2006Inventors: Takayasu Yamazaki, Shirou Nakano
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Publication number: 20050139026Abstract: A rack and pinion steering apparatus which does not need quenching of the rack shaft after gear cutting of the rack shaft in manufacturing processes is provided. The rack and pinion steering apparatus comprises a pinion shaft and a rack shaft meshing with the pinion shaft. The rack shaft is formed to have a substantially uniform hardness.Type: ApplicationFiled: November 29, 2004Publication date: June 30, 2005Applicant: Koyo Seiko Co., Ltd.Inventors: Takayasu Yamazaki, Shirou Nakano, Hironori Yamato, Youjirou Kakoki
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Publication number: 20030119282Abstract: Disclosed is a method for producing semiconductor fine particles comprising a step of preparing two or more solutions each containing at least one element selected from Group II to Group VI and feeding the solutions to an addition tank with mixing the two or more solutions fed to the addition tank by stirring to produce fine particles. In this production method, (1) flows of different rotational directions are formed by stirring the two or more solutions fed to the addition tank, and/or (2) a solvent is introduced into the addition tank beforehand, a mixing chamber having an opening is disposed below liquid surface of the solvent in the addition tank, and the two or more solutions are fed to the mixing chamber with controlling flow rates of the solutions. According to this production method, semiconductor fine particles having uniform grain sizes can be produced in a simple and convenient manner.Type: ApplicationFiled: September 20, 2002Publication date: June 26, 2003Inventor: Takayasu Yamazaki
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Publication number: 20030077850Abstract: Disclosed is a method for producing semiconductor fine particles, which comprises a step of producing fine particles from particles consisting of at least two elements selected from Group II to Group VI elements in a fluid of a high-pressure jet. There is provided a novel simple and convenient method for producing semiconductor fine particles having uniform grain sizes.Type: ApplicationFiled: September 20, 2002Publication date: April 24, 2003Inventor: Takayasu Yamazaki
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Publication number: 20020175983Abstract: An aqueous ink composition for inkjet recording comprising a dye J-aggregate having an average particle size of 2 to 200 nm, and water-dispersible polymer particles having an average particle size of 10 to 400 nm, wherein the amount of the water-dispersible polymer particles is from one to ten times as much as that of the J-aggregate.Type: ApplicationFiled: August 28, 2001Publication date: November 28, 2002Inventors: Shunichi Ishikawa, Takayasu Yamazaki, Masaki Noro, Yoshiharu Yabuki
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Patent number: 6329129Abstract: A heat-developable color light-sensitive material comprising a support having thereon at least a light-sensitive silver halide emulsion, a hydrophilic binder and a dye-donating compound capable of releasing a diffusible dye in correspondence or counter-correspondence to the silver development, wherein at least two light-insensitive layers are provided between the support and a light-sensitive layer closest to the support and the light-insensitive layer not adjacent to the light-sensitive layer contains at least one compound represented by the following formula (I) or (II): wherein R1 to R6 are defined herein wherein R7, R8 and R9 are defined herein and Y represents —CO— or —SO2—.Type: GrantFiled: November 22, 2000Date of Patent: December 11, 2001Assignee: Fuji Photo Film Co., Ltd.Inventor: Takayasu Yamazaki
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Patent number: 6312241Abstract: A gear pump includes a pair of gears accommodated in a gear chamber. When the inside pressure of a trap region which is changed with the rotation of the gears becomes substantially equal to the inside pressure of an inlet chamber, the communication state is switched from a state in which communication between the trap region and the first and second relief channels is blocked to a state in which the trap region communicates with the second relief channel. With the inside pressure of the trap region being substantially equal to the inside pressure of the inlet chamber, the trap region is opened to the inlet chamber.Type: GrantFiled: August 17, 2000Date of Patent: November 6, 2001Assignee: Koyo Seiko Co., Ltd.Inventors: Shigeo Kamamoto, Wataru Yamada, Takayasu Yamazaki
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Patent number: 6287090Abstract: The present invention provides an electric pump apparatus which can be assembled easily by providing a groove having a shape corresponding to that of an opening of a bottomed-cylindrical tank cylinder on pump side end surface of a bracket for supporting the pump and electric motor on its both ends so that the tank cylinder constitutes a reservoir for operating fluid, detachably attaching an opening-side-end portion of the tank cylinder into the groove, and engaging a snap ring with a side wall of the groove; and which is designed to be compact in which a Suppression chamber for pulsation-reduction of discharged fluid is integrally provided, by constituting the suppression chamber with the opening side of the groove is sealed by an intermediate plate provided in-between the opening side and pump.Type: GrantFiled: September 16, 1999Date of Patent: September 11, 2001Assignee: Koyo Seiko Co., Ltd.Inventors: Yoshiaki Hamasaki, Takayasu Yamazaki, Toshio Iida