Patents by Inventor Takeshi Naito

Takeshi Naito 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).

  • Publication number: 20020014728
    Abstract: The liquid-sealing type vibration isolating apparatus of the present invention includes a coupler attached to a vibrating body, a holder, an insulator for absorbing and isolating vibration from the vibrating body at a position between the coupler and the holder, and a vibration isolating mechanism directly following the insulator and including liquid chambers sealing an incompressible fluid. This vibration isolating mechanism has a main chamber sealing a liquid, having a part of wall thereof formed by the insulator, an auxiliary chamber communicating with the main chamber via an orifice, and an equilibrium chamber provided in a portion of the main chamber via a diaphragm and having a varying volume in the chamber. The vibration isolating apparatus further includes switching means for introducing a negative pressure and the atmospheric pressure continuously or in synchronization with vibration of the vibrating body, and control means for controlling this switching operation.
    Type: Application
    Filed: December 6, 2000
    Publication date: February 7, 2002
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Shigeki Takeo, Takashi Maeno, Masanao Gotou, Hiroshi Yokoi, Takeshi Naito, Tomoyuki Sawatari, Hisayoshi Kato, Osamu Nakagaki
  • Publication number: 20010037729
    Abstract: Filter has a filter main body, a container, a first counter room, and a second counter room. A counter air is introduced into the first counter room through the counter air discharge valve, and fine particles trapped in the filter main body are removed and transported to the second counter room. Then, the removed fine particles are further transported to a process portion isolated from an exhaust gas passage, and the fine particles are fired in the process portion. Since the process portion is isolated from the exhaust gas passage, the fine particles in the process portion is not returned to the filter main body. Moreover, since the fine particles are transported by the counter air only to the second counter room, it is possible to reduce an amount of the counter air.
    Type: Application
    Filed: March 10, 1995
    Publication date: November 8, 2001
    Applicant: NGK INSULATORS, LTD.
    Inventors: MINORU MACHIDA, TOSHIO YAMADA, TAKESHI NAITO, YUKIHITO ICHIKAWA
  • Patent number: 6176477
    Abstract: The liquid-sealing type vibration isolating apparatus of the present invention includes a coupler attached to a vibrating body, a holder, an insulator for absorbing and isolating vibration from the vibrating body at a position between the coupler and the holder, and a vibration isolating mechanism directly following the insulator and including liquid chambers sealing an incompressible fluid. This vibration isolating mechanism has a main chamber sealing a liquid, having a part of wall thereof formed by the insulator, an auxiliary chamber communicating with the main chamber via an orifice, and an equilibrium chamber provided in a portion of the main chamber via a diaphragm and having a varying volume in the chamber. The vibration isolating apparatus further includes switching means for introducing a negative pressure and the atmospheric pressure continuously or in synchronization with vibration of the vibrating body, and control means for controlling this switching operation.
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: January 23, 2001
    Assignee: Toyoda Gosei Co. LTd.
    Inventors: Shigeki Takeo, Takashi Maeno, Masanao Gotou, Hiroshi Yokoi, Takeshi Naito, Tomoyuki Sawatari, Hisayoshi Kato, Osamu Nakagaki
  • Patent number: 6106636
    Abstract: In a method of and apparatus for controlling an atmosphere in a heat treatment furnace according to the present invention, a carburizing is carried out while supplying a hydrocarbon series gas and an oxidization gas into the furnace. The quantity of a residual CH.sub.4, a partial pressure of the oxidization gas and a partial pressure of CO are measured. The quantity of each gas to be supplied into the furnace is controlled according to either one of the values of the partial pressures.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: August 22, 2000
    Assignee: Dowa Mining Co., Ltd.
    Inventors: Takeshi Naito, Kouichi Ogihara, Akihiro Wakatsuki, Tadanori Nakahiro, Hideki Inoue, Yoshio Nakashima
  • Patent number: 6070882
    Abstract: A seal structure and capable of reducing a width of a seal portion as much as possible while preventing the seal portion from being broken away. The seal structure for sealing between two members in a fluid-tight or air-tight manner is structured such that the seal portion is formed in at least one of joint surfaces of the two members by continuously printing along a seal portion of the joint portions and that a recess portion or a groove is formed at a middle portion of the seal portion in a widthwise direction.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: June 6, 2000
    Assignee: Kokusan Parts Industry Co., Ltd.
    Inventors: Yoshitaka Abe, Hironobu Imanaka, Takeshi Naito, Yoshinori Iwamoto, Takashi Suzuki
  • Patent number: 6051078
    Abstract: In a method of and apparatus for controlling an atmosphere in a heat treatment furnace according to the present invention, a carburizing is carried out while supplying a hydrocarbon series gas and an oxidization gas into the furnace, and the supply of the hydrocarbon series gas is stopped either when the quantity of a residual CH.sub.4 in the furnace is changed to increasing from decreasing, or when a partial pressure of oxygen in the furnace reaches a predetermined value.
    Type: Grant
    Filed: February 16, 1998
    Date of Patent: April 18, 2000
    Assignee: Dowa Mining Co., Ltd.
    Inventors: Takeshi Naito, Kouichi Ogihara, Akihiro Wakatsuki, Tadanori Nakahiro, Hideki Inoue, Yoshio Nakashima
  • Patent number: 5955481
    Abstract: The present invention provides novel pyridine type thiazolidines and their salts, expressed by the following formula (I): ##STR1##
    Type: Grant
    Filed: February 4, 1998
    Date of Patent: September 21, 1999
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Yoshio Ohara, Mikio Suzuki, Nobuhide Miyachi, Katsuhiro Kato, Keisuke Ohdoi, Tetsuya Kobayashi, Ken-ichi Shikada, Takeshi Naito, Takashi Yotsumoto
  • Patent number: 5938298
    Abstract: The object to be achieved by the present invention is to improve accuracy in determining whether or not it is necessary to terminate antiskid control and to reduce the frequency with which the control is terminated. The solution proposed by the present invention is to stop operation of a hydraulic pump before it is determined that the antiskid control should be terminated during the duty pressure increase operation, whereby fluid pressure in a wheel brake can be raised to a level of fluid pressure in a master cylinder before it is determined that the antiskid control should be terminated, to continue the antiskid control as long as the wheel tends to be locked and to terminate the antiskid control when the wheel does not tend to be locked.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: August 17, 1999
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Takeshi Naito, Akitaka Nishio
  • Patent number: 5890777
    Abstract: According to the present invention, the gradient of duty pressure increase can be adjusted to a best possible value even when an M/C pressure has varied. For example, duty ratio is set to a first set value when a difference between the M/C pressure and a wheel locking pressure is equal to or larger than a predetermined value and to a second set value for a longer pressure increase duration when the difference is smaller than the predetermined value. Then, a brake fluid pressure control valve is operated so that the duty pressure can be increased according to the duty ratio.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: April 6, 1999
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Takeshi Naito, Akitaka Nishio
  • Patent number: 5761953
    Abstract: The main object of the present invention is to permit the non-destructive examination of the embrittlement of two-phase stainless steel. There remains anxiety about the reliability of methods based on conventional formulae because an actual machine is not examined to confirm its degree of embrittlement, and its Charpy impact absorption energy at room temperature cannot be estimated accurately.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: June 9, 1998
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Toru Goto, Takeshi Naito, Shintaro Kumano
  • Patent number: 5746487
    Abstract: An anti-skid control system for an automotive vehicle includes a hydraulic pressure source, a wheel brake for braking a wheel, a pressure control valve interposed between the hydraulic pressure source to the wheel brake in order to regulate a hydraulic braking pressure supplied from the hydraulic pressure source and the wheel brake, the pressure control valve being brought into a duty-cycle pressure-increasing mode operation and a pressure-decreasing mode operation for increasing and decreasing the hydraulic braking pressure, respectively. The duty-cycle pressure-increasing mode operation are repeated such that the pressure-decreasing mode operation is established therebetween. A later pressure-increasing mode operation is treated as a succession of the previous pressure-increasing mode operation if a time duration required for the pressure-decreasing mode operation between the previous and later pressure-increasing mode operations is less than a set value.
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: May 5, 1998
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Takeshi Naito, Akitaka Nishio
  • Patent number: 5649747
    Abstract: An anti-skid control device includes a front wheel brake fluid pressure control unit for determining whether the brake fluid pressure in the front wheel brake should be increased or decreased according to the rotational condition of the front wheel which is braked by the front wheel brake, and for activating a first electromagnetic valve and a hydraulic pressure pump to decrease or increase the brake fluid pressure in the front wheel brake according to a determination. A rear wheel brake fluid pressure control unit determines whether the brake fluid pressure in the rear wheel brake should be increased or decreased according to the rotational condition of the rear wheel which is braked by the rear wheel brake, and activates the second electromagnetic valve and the hydraulic pressure pump driven to decrease or increase the brake fluid pressure in the rear wheel brake according to a determination.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: July 22, 1997
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Takeshi Naito, Akitaka Nishio
  • Patent number: 5548012
    Abstract: An automotive weather strip comprising a base material, a urethane layer and an adhesive composition formed between the base material and the urethane layer, wherein said base material comprises an ethylene/propylene rubber and said adhesive composition comprises components (A) to (E), the weight ratio of component (A) to component (B) being 60:40 to 40:60,(A) an epoxy group-containing acrylic elastomer,(B) an ethylene/.alpha.-olefin copolymer,(C) an organic peroxide,(D) at least one member selected from the group consisting of a primary amines and an imidazole compound, and(E) calcium oxide.The present invention can provide an automotive weather strip in which a base material containing the ethylene/propylene rubber has been strongly adhered to the urethane layer forming a surface layer, and which can be produced efficiently without requiring many production steps and also without using a hygienically undesirable solvent-containing adhesive.
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: August 20, 1996
    Assignees: Sumitomo Chemical Company, Ltd., Toyoda Goesi Co., Ltd.
    Inventors: Keisaku Yamamoto, Kiyoshi Ikeda, Masahiro Fukuyama, Takeshi Naito, Masanori Aritake
  • Patent number: 5354594
    Abstract: The invention is a weather strip having good water-repellency and a method for preparing a weather strip for an automobile or a building. The weather strip includes a flock portion on its sealing portion surface to which a hardened reactive silicone layer is coated. The reactive silicone layer is made of a base material, a catalyst and a solvent. The hardened reactive silicone layer may further include a coupling agent, an ultraviolet cut-off pigment or a fine powder. The weather strip is prepared by applying the reactive silicone layer to the flock portion of the weather strip and curing the reactive silicone at a temperature of 80.degree.-150.degree. C. for 1-20 minutes.
    Type: Grant
    Filed: October 31, 1991
    Date of Patent: October 11, 1994
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Takeshi Naito, Masanori Aritake
  • Patent number: 5268040
    Abstract: A method of cooling steel parts from austenitic stage to a temperature that is higher than its Ms point after carburization of said steel part to carry out diffusion transformation, then carrying out a nitriding treatment and further applying shot peening, and in order to implement said method provide a carburizing zone, a cooling zone for carrying out diffusion transformation and a nitriding treatment zone connected through opening and shutting doors, and provide feeding devices in each of said zones to feed the steel parts to the next zone.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: December 7, 1993
    Assignee: Dowa Mining Co., Ltd.
    Inventors: Takeshi Naito, Masahiro Azumi
  • Patent number: 4864774
    Abstract: A door glass run for automobile provided with a recessed groove for sliding a door glass thereon, installed on a door panel, which comprises an insert positioned on an inner periphery side of the recessed groove and consisting of a hard synthetic resin formed along a profile of the door panel, and a body consisting of elastomer position on an outer periphery side of the insert. A glass slide positioned on a bottom portion of the recessed groove and a glass retainer positioned on a side portion of a car outside of the door glass in the recessed groove are formed on the insert. Further, a locking leg projecting to pass through the body from a predetermined position on an outer periphery side of the glass slide and mountable in a fitting hole of the door panel is formed on the insert.
    Type: Grant
    Filed: March 18, 1988
    Date of Patent: September 12, 1989
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Kunikazu Onishi, Hisayuki Kisanuki, Takeshi Naito
  • Patent number: 4493752
    Abstract: A process for recovering trioxane from an aqueous solution containing trioxane and triethylamine by the distillation separation process which comprises feeding an aqueous solution containing trioxane and triethylamine to the first distillation column, distilling out triethylamine, trioxane and water from the column top of the first distillation column, withdrawing an aqueous solution containing the major part of the trioxane present in the fed solution from the column bottom of the first distillation column, feeding the withdrawn solution to the second distillation column and taking out the substantially whole quantity of the trioxane fed to the second distillation column from the column top of the second distillation column.
    Type: Grant
    Filed: April 23, 1982
    Date of Patent: January 15, 1985
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Takeshi Naito, Junzo Masamoto, Toshiyuki Iwaisako, Kazuhiko Matsuzaki
  • Patent number: 4202710
    Abstract: A method for carburizing low alloy steel having carbon content of no more than 0.5% employing two-step carburizing process. The method comprising pre-carburizing the steel in a carburizing atmosphere having a carbon potential of less than Acm to produce a carburized case having hypereutectoid composition, cooling the steel to transform the case into a bainite, pearlite or martensite structure, and carburizing the steel by heating thereof to a carburizing temperature for a sufficiently long time to produce carbides in a spheroidal or spherical form, the carburizing being carried out in such a manner that the heating speed of the steel is being controlled under 20.degree. C. per minute in a region between Ac.sub.1 temperature and 750.degree. C.-950.degree. C. and the carbon potential in the carburizing atmosphere is being maintained over Acm when the temperature is over Ac.sub.1.
    Type: Grant
    Filed: December 1, 1978
    Date of Patent: May 13, 1980
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Takeshi Naito, Yasutada Kibayashi