Patents by Inventor Toshiyuki Ohashi
Toshiyuki Ohashi 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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Publication number: 20100206447Abstract: An object of the present invention is to provide a pneumatic tire that ensures both of the on-ice braking performance and the dry braking performance. In order to achieve the object, a pneumatic tire comprises a tread surface including a land portion in which a plurality of sipes are formed, wherein each of the sipes includes a reference plane extending in a depth direction of the sipe from a wavy or zigzag line in the surface of the land portion and each of the sipes is formed with a convex portion having a convex shape in a vertical section with respect to the reference plane in a top area at the front side and the rear side thereof.Type: ApplicationFiled: January 7, 2010Publication date: August 19, 2010Applicant: Toyo Tire & Rubber Co., Ltd.Inventors: Toshiyuki Ohashi, Tetsuji Miyazaki
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Patent number: 7777478Abstract: A sensor including at least one sensor probe including a pair of electrodes; a vertically aligned nanotube disposed between the pair of electrodes; optionally a piezoelectric polymer on the nanotube; and optionally, a field source for generating a field, the field source operatively connected to the pair of electrodes; whereby when the sensor probe is contacted, a change in the field occurs or electricity is generated. Methods of using the sensors are also described.Type: GrantFiled: June 7, 2007Date of Patent: August 17, 2010Assignees: University of Dayton, Honda Motor Co., Ltd.Inventors: Liming Dai, Toshiyuki Ohashi
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Publication number: 20100193100Abstract: A pneumatic tire with improved steering stability without raising air columnar resonance noise is provided. The pneumatic tire comprises first oblong holes 11 having an opening portion of a trapezoidal shape that is elongated in the depth direction of a main groove 1 and whose depth D1 on the tread surface side is shallower than a depth D2 on the groove bottom side and second oblong holes 12 having an opening portion of a trapezoidal shape that is elongated in the depth direction of the main groove and whose depth D4 on the groove bottom side is shallower than a depth D3 on the tread surface side, wherein number of the first oblong holes 11 is 50 to 100% of the sum of oblong holes 11 and 12, the depths D2 and D3 are at least not less than 0.5 mm and 0.05 to 0.3 times a width W of the main groove 1, the depths D1, D4 are not greater than 0.1 times a depth D of the main groove 1, widths w of the oblong holes 11, 12 are at least not less than 0.5 mm and 0.05 to 0.Type: ApplicationFiled: June 18, 2008Publication date: August 5, 2010Applicant: Toyo Tire & Rubber Co., Ltd.Inventor: Toshiyuki Ohashi
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Publication number: 20100170601Abstract: In a pneumatic tire, at least one groove wall face of at least one of the grooves includes a portion located at the tread surface side and a portion located at a groove bottom side with respect to the portion located at the tread surface side, the portion located at the tread surface side includes a plane face that forms a right angle or an obtuse angle with respect to the land portion surface, and a bottom face extending outward in a width direction of the groove from an end at the groove bottom side of the plane face, the portion located at the groove bottom side has an inclined face extending from the groove bottom in the width direction toward the outside of the bottom face, the inclined face and the bottom face form therebetween a recess portion recessed outward in the width direction of the groove.Type: ApplicationFiled: November 9, 2009Publication date: July 8, 2010Applicant: Toyo Tire & Rubber Co., Ltd.Inventor: Toshiyuki Ohashi
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Publication number: 20090165911Abstract: An object of the present invention is to provide a pneumatic tire capable of reducing the narrowing of the openings of sipes and increasing ground-contact performance by ensuring the edge effect and the water removal effect thereby increasing on-ice braking performance while providing a satisfactory durability to a sipe-forming blade mounted on the tire manufacturing die.Type: ApplicationFiled: November 21, 2008Publication date: July 2, 2009Applicant: Toyo Tire & Rubber Co., LtdInventor: Toshiyuki Ohashi
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Patent number: 7553471Abstract: There is provided a method of manufacturing hydrophilic carbon nanotubes, which is capable of imparting hydrophilicity without damaging the surface of the carbon nanotubes. By irradiating carbon nanotubes 4 with ultraviolet ray 3, hydrophilic functional group(s) are introduced into the surface of carbon nanotubes 4. Hydrophilicity is imparted to the carbon nanotubes to such an extent that a contact angle of water is in the range of less than 130°. Ultraviolet ray 3 is a far ultraviolet ray having a wavelength ranging from 1 to 190 nm. The irradiation with ultraviolet ray 3 is conducted in the presence of oxygen and hydrogen or in the presence of ozone and hydrogen. The end part(s) of carbon nanotubes 4 is opened by the irradiation with ultraviolet ray 3.Type: GrantFiled: March 23, 2005Date of Patent: June 30, 2009Assignees: Honda Motor Co., Ltd., Ushiodenki Kabushiki KaishaInventors: Toshiyuki Ohashi, Hiroshi Sugahara, Mitsuaki Mitama
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Publication number: 20090078350Abstract: A pneumatic tire structured such that a sipe is formed in a land portion of a tread surface. The sipe has a wide portion extending along a longitudinal direction at least at one position in a depth direction. The wide portion is structured by alternately arranging concave portions which are smaller in the longitudinal direction and the depth direction than the sipe, in both sides of a sipe wall surface along the longitudinal direction of the sipe.Type: ApplicationFiled: June 17, 2008Publication date: March 26, 2009Applicant: Toyo Tire & Rubber Co., Ltd.Inventor: Toshiyuki Ohashi
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Publication number: 20090050248Abstract: A sipe formed in a block of a tread surface is provided with a first sipe portion having a first wide portion, a second sipe portion having a second wide portion in a different side from the first wide portion in a sipe width direction and positioned close to a sipe bottom portion side of the first sipe portion so as to become wider than the first sipe portion, and a third sipe portion having a third wide portion in the same side as the first wide portion in the sipe width direction and positioned close to a sipe bottom portion side of the second sipe portion so as to become wider than the second sipe portion.Type: ApplicationFiled: June 6, 2008Publication date: February 26, 2009Applicant: Toyo Tire & Rubber Co., Ltd.Inventor: Toshiyuki Ohashi
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Patent number: 7485678Abstract: An object is to provide a process for producing a carbon nanotube (CNT) reinforced composite material, wherein CNT is homogeneously dispersed in a resin to obtain the composite material having an excellent mechanical strength. Hydrophilic CNTs 12 are dispersed in a first solvent 11 to prepare a first dispersion liquid 13. The dispersion liquid 13 and a synthetic resin raw material 15 are added to a second solvent 14 and the resulting mixture is stirred to prepare a third dispersion liquid 17 where a second dispersion liquid 16 in which the synthetic resin raw material 15 is dissolved in the dispersion liquid 13 is dispersed in the solvent 14. The solvents 11 and 14 are removed from the dispersion liquid 17 to obtain a mixture of the hydrophilic CNTs 12 and the synthetic resin raw material 15. The mixture is molded to obtain the composite material in which the synthetic resin is reinforced with the hydrophilic CNTs 12.Type: GrantFiled: March 23, 2005Date of Patent: February 3, 2009Assignee: Honda Motor Co., Ltd.Inventors: Toshiyuki Ohashi, Keiichi Sato, Kazuhiro Miura
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Publication number: 20080295937Abstract: A sipe is formed in a block provided in a tread surface, wide portions extending in a sipe length direction are formed in each of a kick-out side and a step-in side of the sipe, and a total of heights of the wide portions in the kick-out side of the sipe is made larger than a total of heights of the wide portions in the step-in side of the sipe.Type: ApplicationFiled: April 23, 2008Publication date: December 4, 2008Applicant: Toyo Tire & Rubber Co., Ltd.Inventor: Toshiyuki Ohashi
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Publication number: 20080185085Abstract: The invention provides a pneumatic tire which can obtain a sufficient engagement force in a depth direction in comparison with a known pattern while making good use of an advantage of a waveform sipe, and is hard to be affected in an inhibiting effect in accordance with a collapsing direction of a block. In a pneumatic tire provided with a tread pattern having a plurality of blocks forming a plurality of sipes therein, the sipe is formed in a zigzag or wavy line shape on a surface of the block and formed as a waveform groove in a depth direction, and the waveform groove has an auxiliary wavy portion in a wavy surface direction, and has a concave portion in a peak portion of the wave.Type: ApplicationFiled: February 6, 2008Publication date: August 7, 2008Inventor: Toshiyuki Ohashi
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Publication number: 20080129278Abstract: A sensor comprising: at least one sensor probe comprising: a pair of electrodes; a vertically aligned nanotube disposed between the pair of electrodes; optionally a piezoelectric polymer on the nanotube; and optionally, a field source for generating a field, the field source operatively connected to the pair of electrodes; whereby when the sensor probe is contacted, a change in the field occurs or electricity is generated. Methods of using the sensors are also described.Type: ApplicationFiled: June 7, 2007Publication date: June 5, 2008Applicant: UNIVERSITY OF DAYTONInventors: Liming Dai, Toshiyuki Ohashi
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Publication number: 20080115870Abstract: A sipe inner wall surface of a sipe is provided with a wavy first concave and convex row, a wavy second concave and convex row arranged in a sipe bottom side from the first concave and convex row so as to be spaced, and structured such that a wavelength is made shorter than the first concave and convex row so as to increase the number of waves, and a third concave and convex row extending toward the sipe bottom side in a branched manner while being inclined to a longitudinal direction side of the sipe with respect to a normal direction of a tread surface, and interposed between the first concave and convex row and the second concave and convex row so as to be connected to both elements.Type: ApplicationFiled: October 29, 2007Publication date: May 22, 2008Applicant: TOYO TIRE & RUBBER CO., LTD.Inventors: Toshiyuki Ohashi, Shouta Satou, Takashi Numata
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Publication number: 20080073011Abstract: It is a subject to suitably decrease the rigidity of blocks, to generate suitable collapsing of the blocks, to sufficiently exhibit edge effects of sipes, and to improve braking performances and the like in the medium term of wear and thereafter; and for solving this subject, in a pneumatic tire formed with blocks on its tread and engraved with sipes 11 on the blocks, the sipes 11 are classified into a surface portion 12, an intermediate portion 13, and a bottom portion 14 in a depth direction from a tread surface 17 up to sipes bottom 18, wherein the surface portion 12 and the bottom portion 14 open in a wave-shaped form in which crest portions 21 and trough portions 22 of the wave-shaped form extend in directions vertical to the tread, while the intermediate portion 13 opens in a wave-shaped manner in which the crest portions 21 and trough portions 22 of the wave-shaped form extend in a zigzag-like manner.Type: ApplicationFiled: September 11, 2007Publication date: March 27, 2008Inventor: Toshiyuki Ohashi
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Patent number: D584222Type: GrantFiled: June 11, 2008Date of Patent: January 6, 2009Assignee: Toyo Tire & Rubber Co., Ltd.Inventor: Toshiyuki Ohashi
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Patent number: D609168Type: GrantFiled: December 16, 2008Date of Patent: February 2, 2010Assignee: Toyo Tire & Rubber Co., Ltd.Inventor: Toshiyuki Ohashi
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Patent number: D615923Type: GrantFiled: November 10, 2008Date of Patent: May 18, 2010Assignee: Toyo Tire & Rubber Co., Ltd.Inventor: Toshiyuki Ohashi
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Patent number: D622655Type: GrantFiled: February 16, 2010Date of Patent: August 31, 2010Assignee: Toyo Tire & Rubber Co., Ltd.Inventor: Toshiyuki Ohashi
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Patent number: D622656Type: GrantFiled: February 16, 2010Date of Patent: August 31, 2010Assignee: Toyo Tire & Rubber Co., Ltd.Inventor: Toshiyuki Ohashi
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Patent number: D623587Type: GrantFiled: February 16, 2010Date of Patent: September 14, 2010Assignee: Toyo Tire & Rubber Co., Ltd.Inventor: Toshiyuki Ohashi