公开(公告)号：JPS62224303A

公开(公告)日：1987-10-02

申请号：JP6672486

申请日：1986-03-25

Applicant: BRIDGESTONE CORP

Inventor： YAMADA TADATOSHI ,  SAITO TASUKU

IPC: A43B13/14

公开(公告)号：JPS62137002A

公开(公告)日：1987-06-19

申请号：JP27686985

申请日：1985-12-11

Applicant: BRIDGESTONE CORP

Inventor： KATAOKA NOBUYUKI ,  SAITO TASUKU ,  SHIBUTA NORIYUKI ,  SATO SUSUMU

IPC: A43B13/04 ,  C08K3/36

公开(公告)号：JPS61273940A

公开(公告)日：1986-12-04

申请号：JP11747485

申请日：1985-05-30

Applicant: BRIDGESTONE CORP

Inventor： SAITO TASUKU ,  NISHIKAWA TADAKAZU ,  YAMADA TADATOSHI

IPC: B32B7/02 ,  B32B5/18 ,  B32B27/00

公开(公告)号：JPH1179841A

公开(公告)日：1999-03-23

申请号：JP23147097

申请日：1997-08-27

Applicant: BRIDGESTONE CORP

Inventor： OOTSUKI MASAMI ,  WADA HIROAKI ,  TAKAHASHI KEICHI ,  SAITO TASUKU

IPC: C04B35/565 ,  H01L21/02

Abstract: PROBLEM TO BE SOLVED: To obtain a high-density and high-grade silicon carbide sintered compact, having the electroconductivity and a high heat conductivity in combination and useful in various fields of the semiconductor industry, the electronic information equipment industry or the like. SOLUTION: This silicon carbide sintered compact is obtained by sintering a mixture of a silicon carbide powder with a nonmetallic sintering assistant and introducing nitrogen thereinto, has >=2.9 g/cm density and contains >=150 ppm nitrogen. The volume resistivity of the silicon carbide sintered compact is preferably =70%. A method for adding a nitrogen source represented by various amines such as hexamethylenetetramine, ammonia or triethylamine at the time of producing the raw material silicon carbide powder or a method for adding the nitrogen source together with the nonmetallic sintering assistant when producing the sintered compact is cited as the method for introducing the nitrogen into the sintered compact.

公开(公告)号：JPH1081889A

公开(公告)日：1998-03-31

申请号：JP23680596

申请日：1996-09-06

Applicant: BRIDGESTONE CORP ,  MITSUI MINING CO LTD

Inventor： ENDO SHIGEKI ,  SHII HAWARD ,  SAITO TASUKU ,  SAKATA KOJI ,  FUKUDA KENJI ,  HARA YOICHIRO ,  UMENO TATSUO

IPC: C01B31/02 ,  C10M107/46 ,  C10M171/00 ,  C10N20/00 ,  C10N20/06 ,  C10N40/14

Abstract: PROBLEM TO BE SOLVED: To provide a powder which is used for an electroviscous fluid, exhibits a high electroviscous effect over a wide temperature range with low power consumption, has high strength, and is hardly broken down when stressed and excellent in durability. SOLUTION: This powder comprises a carbonaceous material powder obtained by using a condensate of substantially an aromatic sulfonic acid or a salt thereof through a methylene linkage and a solvent as the raw material and has a truely spherical shape. Preferably, the spherical shape is such that the deviations of the maximum and minimum diameters of the powder from the mean diameter thereof are each within 30% of the mean diameter, and the powder has a crushing strength of at least 5kgf/ mm with a maximum displacement of at least 3%.

公开(公告)号：JPH09118860A

公开(公告)日：1997-05-06

申请号：JP21989496

申请日：1996-08-21

Applicant: BRIDGESTONE CORP

Inventor： SAKURAI MAKOTO ,  SAITO TASUKU ,  KOTSUBO HIDESHI

IPC: C09J7/00 ,  C09J9/02 ,  C09J11/04 ,  C09J123/02 ,  C09J123/08 ,  C09J131/04 ,  C09J133/04 ,  C09J133/06 ,  C09J135/00 ,  H01B5/16 ,  H01R4/04 ,  H01R11/01 ,  H05K1/14 ,  H05K3/32

Abstract: PROBLEM TO BE SOLVED: To prepare an anisotropic electroconductive film having high adhesive strength and excellent workability and transparency. SOLUTION: This anisotropic electroconductive film contains electroconductive particles having 0.1-100μm particle diameter in an amount of 0.1-15wt.% based on a polymer in dispersed state in an adhesive. The adhesive is a curable adhesive containing at least one kind of polymer selected from the group consisting of an ethylene-vinyl acetate copolymer, a copolymer of ethylene, vinyl acetate and an acrylate-based and/or a methacrylate-based monomer, a copolymer of ethylene, vinyl acetate and maleic acid and/or maleic anhydride, a copolymer of ethylene and an acrylate-based and/or a methacrylate- based monomer and maleic acid and/or maleic anhydride, and an ionomer resin obtained by bonding intermolecules of an ethylene-methacrylate copolymer with a metallic ion, as main components.

公开(公告)号：JPH08325590A

公开(公告)日：1996-12-10

申请号：JP26306695

申请日：1995-10-11

Applicant: BRIDGESTONE CORP

Inventor： SAKURAI MAKOTO ,  SAITO TASUKU

IPC: C10M107/12 ,  C10M107/24 ,  C10M177/00 ,  C10N20/06 ,  C10N30/04 ,  C10N40/14

Abstract: PURPOSE: To provide a method for simply producing a powdery material used for an electrically viscous fluid and having an uniform particle diameter and an uniform electric conductivity at a low cost. CONSTITUTION: A method for producing a powdery material for an electrically viscous fluid comprises carbonizing a carbonaceous powdery material in an inert gas atmosphere such as argon at 100-500 deg.C for approximately 2hrs, treating the carbonized powdery material with a grinding and classifying device, and further treating the obtained powdery material having an uniform particle diameter in an inert gas atmosphere such as argon at 200-600 deg.C for approximately 2hr. The produced powdery material for the electrically viscous fluid has an uniform particle diameter and an uniform electric conductivity.

公开(公告)号：JPH08317804A

公开(公告)日：1996-12-03

申请号：JP9846896

申请日：1996-04-19

Applicant: BRIDGESTONE CORP

Inventor： YAMADA TADATOSHI ,  SAITO TASUKU

IPC: A43B13/14

Abstract: PURPOSE: To provide shoes in which drop is walking function and change in body with the advance of the wearer's age are made up and easy walk and conformable use are obtained. CONSTITUTION: In shoes of size of about 24cm-26cm, toe spring (a) is 9mm-17mm, and height difference between a heel portion 3 and an arch portion is 10mm-15mm. Then, in other sizes e.g. about 23cm or 27cm, the toe spring may be somewhat deviated, preferably between 9mm and 17mm. Further, in the shoes, the heel surface is curved as recess, conforming to the human heel. The inner sole sheet or an insole has preferably specific gravity 0.2-0.5 and impact value up to 30G.

公开(公告)号：JPH08176584A

公开(公告)日：1996-07-09

申请号：JP32612694

申请日：1994-12-27

Applicant: BRIDGESTONE CORP

Inventor： MIYANO MARI ,  SHII HAWAADO ,  SAITO TASUKU

IPC: C10M169/04 ,  C08L83/04 ,  C10N40/14

Abstract: PURPOSE: To obtain an electroviscous fluid showing high electroviscous fluid effect with low power consumption. CONSTITUTION: A disperse phase in an amount of 1-50vol.% comprising dielectric particles is dispersed into 50-99vol.% of a liquid phase composed of an oily medium which is a siloxane polymer containing 0-90mol% dimethylsiloxane and 10-100mol% 3,3,3-trifluoropropylmethylsiloxane and has >=10 Ω.m volume resistivity and in an amount of 0.1-20wt.% based on the dielectric particles of a polyether-modified silicone. The dielectric particles are preferably carbonaceous powder obtained by heat-treating 100% mesophase pitch as a raw material in an oxidizing atmosphere and then carbonizing.

公开(公告)号：JPH08143887A

公开(公告)日：1996-06-04

申请号：JP29102794

申请日：1994-11-25

Applicant: BRIDGESTONE CORP

Inventor： MIYANO MARI ,  SAKURAI MAKOTO ,  SAITO TASUKU

IPC: C10M169/04 ,  C10N20/00 ,  C10N20/06 ,  C10N40/14

Abstract: PURPOSE: To obtain an electroviscus fluid having large electroviscus effect, not causing settling of a disperse phase, capable of improving re-dispersibility, and further, excellent in long-term stability, low initial viscosity, response to low electric current and in electric field. CONSTITUTION: This electroviscus fluid uses carbonaceous powder having true sphere-like form as a disperse phase and dimethylsiloxane and fluorosiloxane as a medium phase and silicone oil as an additive, respectively and contains the disperse phase and the medium phase at a mixed ratio of (1-50)/(99-50)vol% and contains an amino-modified silicone oil in an amount of 0.1-20wt.% based on the carbonaceous powder in the oily medium oil.