公开(公告)号：JPS62255475A

公开(公告)日：1987-11-07

申请号：JP9595286

申请日：1986-04-25

Applicant: AGENCY IND SCIENCE TECHN

Inventor： MATSUDA HIROO ,  OKADA SHUJI ,  NAKANISHI HACHIRO ,  KATO MASAO ,  HORAI SHIGERU

IPC: C07D209/86 ,  C08F38/00 ,  G02F1/35 ,  G02F1/355 ,  G02F1/361 ,  G03F7/025

Abstract: NEW MATERIAL:A diacetylene compound of formula I (R is hydroxymethyl, 4-hydroxybutyl or their toluenesulfonic acid ester or phenyl-carbamic acid ester). EXAMPLE:1-(N-carbazoline)-5-hydroxy-1,3-pentadiyne. USE:Useful as a monomer for forming a polymeric semiconductor crystal or a polymer crystal exhibiting singular optical characteristics. Polydiacetylene crystal has excellent electrical and optical properties. The solid-phase polymerization of the monomer can be carried out by the heating, gamma-ray irradiation, etc., of a crystal sealed in a glass tube in vacuum or in an inert gas atmosphere. PREPARATION:The compound of formula I can be produced e.g. by asymmetric coupling of N-ethynylcarbazole of formula II with a 1-bromopropyn-3-ol of formula III (n is 1 or 4).

公开(公告)号：JPH06231931A

公开(公告)日：1994-08-19

申请号：JP3440793

申请日：1993-01-29

Applicant: TODA KOGYO CORP

Inventor： HAKATA TOSHIYUKI ,  HORAI SHIGERU

IPC: C01G49/00 ,  H01F1/00 ,  H01F1/11 ,  H01F1/42

Abstract: PURPOSE:To provide globular conductive magnetic substance powder, which is strong and besides has high saturation magnetization value and high conductivity, and the manufacture to obtain the globular conductive magnetic substance particle powder industrially. CONSTITUTION:This is globular conductive magnetic substance particle powder consisting of globular conductive magnetic substance particles which are the complexes between magnetic particle powder and carbon and are 1-1000mum in average diameter. This globular conductive magnetic substance particle powder can be obtained by heat-treating the globular complex particles, which are the complexes between magnetic particle powder and hardened phenol resin and are 1-1000mu in average diameter, at a temperature of 400 deg.C or over in inert atmosphere thereby carbonizing the phenol resin.

公开(公告)号：JPH05237369A

公开(公告)日：1993-09-17

申请号：JP7897792

申请日：1992-02-28

Applicant: TODA KOGYO CORP

Inventor： HAKATA TOSHIYUKI ,  FUKUGAITO MASAAKI ,  KAKIHARA HIROOMI ,  HORAI SHIGERU ,  AKAI YASUSHI

IPC: B01J2/00 ,  B01J2/28 ,  B01J13/02 ,  C08G8/00 ,  C08K9/04 ,  C08K9/06 ,  C08L61/06 ,  C08L101/00 ,  C09D7/12 ,  C09J11/04 ,  C09K3/14 ,  C10M171/06 ,  C10N20/06 ,  C12M1/40 ,  G03G9/083 ,  G03G9/107

Abstract: PURPOSE:To provide such a resin-composite spherical powder material containing inorg. particles that the particle size can be controlled in a wide range and that the powder material has a large content of inorg. particles and has a spherical form with excellent environmental stability and compatibility with vehicles, etc. CONSTITUTION:This powder material is a composite material consisting of inorg. particles and a hardened phenol resin. Surfaces of the inorg. particles are treated to be oleophilic. The composite spherical material has a number- average particle size between >10mum and

公开(公告)号：JPH0434441A

公开(公告)日：1992-02-05

申请号：JP14100990

申请日：1990-05-30

Applicant: UNITIKA LTD ,  TODA KOGYO CORP

Inventor： ECHIGO YOSHIAKI ,  SAKAIDA TSUTOMU ,  UEDA MITSUKO ,  TODA TETSUO ,  FUJIOKA KAZUO ,  HAKATA TOSHIYUKI ,  HORAI SHIGERU

IPC: G03G9/107 ,  G03G9/113

Abstract: PURPOSE:To obtain a large satd. magnetization and high electric resistance by uniformly coating the surface of the composite particles which are formed by dispersing ferromagnetic fine particles into a cured phenolic resin matrix, are specified in number average particle size and bulk density and contain a large amt. of these fine particles with a polyamide layer. CONSTITUTION:The composite particles are formed of the ferromagnetic fine particles and the cured phenolic resin by bringing phenols and aldehydes into reaction in an aq. medium and curing the same in the presence of the ferromagnetic fine particles, suspension stabilizer and basic catalyst. The number average particle size is 10 to 100mum and the bulk density is specified to as small as . In addition, the ferromagnetic fine particles are incorporated at a ratio as high as 80 to 99wt.% into these particles. Further, the composite particles are dispersed into lactams, and in the presence of the polymn. catalyst and activator, into an org. solvent and are coated with the polyamide layer over the entire surface thereof by the polyamide obtd. by the anion polymn. of the lactams. The bulk density is reduced in this way and the high magnetization value and high electric resistance are obtd.

公开(公告)号：JPH03285924A

公开(公告)日：1991-12-17

申请号：JP15575290

申请日：1990-06-14

Applicant: TODA KOGYO CORP ,  DAI ICHI HIGH FREQUENCY CO LTD

Inventor： HORIISHI NANAO ,  HIRAYAMA KOTARO ,  TERASAKI MASANORI ,  TODA TETSUO ,  HORAI SHIGERU

IPC: C08J5/12 ,  C09J5/06

Abstract: PURPOSE:To safely carry out ready hot melt adhesion between the subject materials in a short time at a low cost by inserting a heating material containing a magnetic powder between the subject insulating materials such as a resin material, subsequently focusing and applying an alternating magnetic field thereto using a specified apparatus and heating the heating material. CONSTITUTION:A heating material composed of a magnetic powder selected from an iron oxide powder, a ferrite powder and a mixture thereof and a resin is initially inserted between insulating materials such as a resin material. An alternating magnetic field of 1-400kHz is then applied to the insulating materials 3 sandwiching the above-mentioned heating material using a heating unit composed of a high frequency generator 5, an electromagnetic core 1 and an exciting coil 2 in order to heat the above-mentioned heating material utilizing heat generation due to hysterisis loss of the magnetic powder. The above-mentioned heating material and/or the resin materials can be cured or melted thereby, thus carrying out the objective adhesion. In addition, the above-mentioned heating material is preferably >=50 Oe coercive force (HC) and >=1200G maximum magnetic flux density.

公开(公告)号：JPH0840724A

公开(公告)日：1996-02-13

申请号：JP20131394

申请日：1994-08-02

Applicant: TODA KOGYO CORP

Inventor： HAKATA TOSHIYUKI ,  HORAI SHIGERU

IPC: G03G9/083 ,  C01G49/00 ,  C01G49/08 ,  C08K3/02 ,  C08K3/04 ,  C08L61/04 ,  C08L63/00 ,  C08L101/00 ,  C09C1/48 ,  G03G9/087 ,  G03G9/107 ,  H01F1/00

Abstract: PURPOSE:To obtain spherical conjugate granular powder having high strength, large saturated magnetization value and appropriate electric conductivity and to provide a process for manufacturing the spherical conjugate granular powder on an industrial scale. CONSTITUTION:This spherical conjugate granular powder consists of magnetic granular powder, a thermoset resin and carbon formed by carbonizing a part of the thermoset resin, and has an average particle diameter of 1-1000mum. At first, spherical, conjugate granules having an average particle diameter of 1-1000mum are prepared by binding magnetic granular powder with a binder of a thermoset resin. The prepared spherical conjugate granules are treated in an inert atmosphere at >=350 deg.C. By this treatment, a part of the thermoset resin is carbonized and the objective spherical conjugate granular powder is obtained.

公开(公告)号：JPH07265786A

公开(公告)日：1995-10-17

申请号：JP6090194

申请日：1994-03-30

Applicant: NIPPON PAINT CO LTD ,  TODA KOGYO CORP ,  JAPAN STEEL WORKS LTD

Inventor： NIIMI EIZO ,  HORAI SHIGERU ,  TODA TETSUO ,  MORII AKIRA ,  MATSUNAGA HISANORI

IPC: B05D1/36 ,  B05D3/14 ,  B05D5/06 ,  B05D7/24

Abstract: PURPOSE:To provide a method which is good for mass production and of good workability and can form a superior magnetic pattern by applying a magnetic coating material to a material to be coated forming a film for magnetization, dot magnetizing the film for magnetization and then applying a magnetic pattern-forming coating material to form a magnetic pattern formed film. CONSTITUTION:When a pattern film is formed, first a magnetic coating material containing permanently magnetizable particle powder is applied onto a material 11 to be coated, and a magnetization film 12 having the leaking magnetic flux density of 1-100 Gauss is formed. Then the film for magnetization thus formed is dot magnetized by using a single-pole or a multipole magnetizing tool, for example, a magnetizing pole 23 and applying power from a magnetizing power source device 14 to the pole. Successively magnetic induction particle powder having saturated magnetization of 5-100emu/g and, if required, a magnetic pattern forming coating material containing a coloring pigment and/or a bright pigment is applied to form a magnetic pattern formed film. A magnetic pattern which is good for mass production of good workability, bright and of high design properties without being affected by the material to be coated is formed.

公开(公告)号：JPH05186604A

公开(公告)日：1993-07-27

申请号：JP2725692

申请日：1992-01-16

Applicant: TODA KOGYO CORP

Inventor： HAKATA TOSHIYUKI ,  HORAI SHIGERU ,  IMAI TOMOYUKI ,  MATSUI TOSHIKI

IPC: C08J3/12 ,  C08G59/00 ,  C08J3/20 ,  C08K3/00 ,  C08K9/06 ,  C08L63/00

Abstract: PURPOSE:To provide composite granule powder, comprised of inorganic particles and an epoxy resin, with its granular size controllable over a wide range, adequately high in inorganic powder content, also controlled in electrical conductivity. CONSTITUTION:The objective granule powder with the granule surface coated with metal. The granules, comprised of (A) surface-lipophilized inorganic particles and (B) a cured epoxy resin, have the following characteristics: (1) number-average particle diameter: 1-1000mum and (2) the content of the inorganic particles: 80-99wt.%.

公开(公告)号：JP2008227291A

公开(公告)日：2008-09-25

申请号：JP2007065563

申请日：2007-03-14

Applicant: Toda Kogyo Corp ,  戸田工業株式会社

Inventor： FUJII YASUHIKO ,  KANETO KAZUHISA ,  ISHIDA TATSUYA ,  HORAI SHIGERU

IPC: H01F1/11 ,  H01F7/02

CPC classification number: C01G49/0036 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/42 ,  C04B35/2683 ,  C04B2235/3201 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/444 ,  C04B2235/447 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/604 ,  C09C1/24 ,  H01F1/113

Abstract: PROBLEM TO BE SOLVED: To provide ferrite particle powder for a bonded magnet in which moldability is fine, in particular, mechanical strength is large when it is rapidly cooled upon injection cooling, and it is possible to obtain a bonded magnet molded body in which a magnetic characteristic of a molded product is excellent, a resin composition for the bonded magnet, and the bonded magnet molded body such as a magnet roll using the ferrite particle powder and the composition. SOLUTION: In the ferrite particle powder for the bonded magnet adsorbing and/or containing phosphorous, a phosphorous content in a ferrite is 120 to 5,000 mg/kg (0.012 to 0.5 wt.%) as P. The resin composition for the bonded magnet formed of the ferrite particle powder for the bonded magnet and the magnet roll are obtained. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供成型性良好的粘结磁体的铁氧体颗粒粉末，特别地，当在注射冷却时快速冷却时，机械强度大，并且可以获得粘合磁体成型体 成型体的磁特性优良，粘结磁体用树脂组合物和使用铁氧体颗粒粉末的组合物等磁性辊的粘结磁体成型体。 解决方案：在用于粘附磁体的铁氧体颗粒粉末吸附和/或含有磷的情况下，铁素体中的磷含量为P为120〜5,000mg / kg（0.012〜0.5重量％）。作为P的树脂组合物 获得由粘结磁体的铁氧体颗粒粉末和磁体辊形成的粘结磁体。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2005012047A

公开(公告)日：2005-01-13

申请号：JP2003176027

申请日：2003-06-20

Applicant: Toda Kogyo Corp ,  戸田工業株式会社

Inventor： HORAI SHIGERU ,  YAMAMOTO HIROSHI ,  NAKAI KATSUMI ,  NAKATSUKA SATORU ,  TANAKA ITSURO

IPC: H01F1/113

Abstract: PROBLEM TO BE SOLVED: To provide a hysteresis bond magnet advantageous for a hysteresis generating device such as a torque limiter excellent in cost performance and safety.
SOLUTION: This hysteresis bond magnet is constituted of oxide magnetic powder 75 to 95 wt.% whose coercive force is 100 to 1,100 Oe (8.0 to 87.6 KA/m), whose mean particle diameter is 0.5 μm or larger, and whose compression density is 2.7 to 3.5 g/cm
3 and binder resin 25 to 5 wt.%.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种有利于滞后产生装置的滞后粘结磁体，例如性价比和安全性优异的扭矩限制器。 解决方案：该磁滞键合磁体由平均粒径为0.5μm以上的矫顽力为100〜1100.6Ee（8.0〜87.6KA / m）的75〜95重量％的氧化物磁性粉末构成， 压缩密度为2.7〜3.5g / cm 3，粘合剂树脂为25〜5重量％。 版权所有（C）2005，JPO＆NCIPI