公开(公告)号：EP2003094A4

公开(公告)日：2009-05-13

申请号：EP07740945

申请日：2007-03-28

Applicant: UNIV TOKYO ,  DOWA ELECTRONICS MATERIALS CO

Inventor： OHKOSHI SHIN-ICHI ,  HASHIMOTO KAZUHITO ,  SAKURAI SHUNSUKE ,  KUROKI SHIRO ,  SATO KIMITAKA ,  SASAKI SHINYA

IPC: C01G49/00 ,  C04B35/622 ,  G11B5/706 ,  G11B5/712 ,  H01F1/11 ,  H01F10/22

CPC classification number: G11B5/70642 ,  C01G49/0018 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2006/42 ,  C04B35/26 ,  C04B35/62807 ,  C04B2235/3274 ,  C04B2235/3286 ,  C04B2235/76 ,  G11B5/712 ,  G11B5/714 ,  H01F1/11

Abstract: This invention provides a magnetic material that has an X-ray diffraction peak corresponding to the crystal structure of e-Fe 2 O 3 and is formed of a crystal of e-Ga x Fe 2-x O 3 , provided by replacing a part of Ga 3+ ion site in the e-Fe 2 O 3 crystal with Ga 3+ ion, wherein 0

Abstract translation: 本发明提供一种磁性材料，其具有与e-Fe 2 O 3的晶体结构相对应的X射线衍射峰，并且由e-GaxFe 2-x O 3的晶体形成，通过置换e-Fe 2 O 3中的一部分Ga 3+离子位点 其中0

公开(公告)号：EP2719486A4

公开(公告)日：2016-01-20

申请号：EP11867177

申请日：2011-06-10

Applicant: DOWA ELECTRONICS MATERIALS CO

Inventor： KURITA SATORU ,  HINOTSU TAKASHI ,  SASAKI SHINYA

IPC: B22F9/00 ,  B22F1/00 ,  B22F1/02 ,  H01B1/00 ,  H01B1/22 ,  H01L21/52 ,  H05K3/32

CPC classification number: C09J11/06 ,  B22F1/0018 ,  B22F1/0062 ,  C22C5/06 ,  H01L24/27 ,  H01L24/29 ,  H01L24/32 ,  H01L24/83 ,  H01L2224/2732 ,  H01L2224/29294 ,  H01L2224/29339 ,  H01L2224/32245 ,  H01L2224/83192 ,  H01L2224/83203 ,  H01L2924/00011 ,  H01L2924/00013 ,  H01L2924/01006 ,  H01L2924/01029 ,  H01L2924/10253 ,  H01L2924/12042 ,  H01L2924/12044 ,  H01L2924/1301 ,  H01L2924/13033 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/1306 ,  H01L2924/13091 ,  H01L2924/15747 ,  H05K1/092 ,  H05K2201/0224 ,  H05K2201/0257 ,  Y10T428/24413 ,  H01L2224/29298 ,  H01L2924/00 ,  H01L2224/29099 ,  H01L2224/29199 ,  H01L2224/29299 ,  H01L2224/2929 ,  H01L2924/00014

Abstract: A bonding material using silver nanoparticles considerably changes in coating-material property in response to a slight change in composition, and the stability thereof has been insufficient for large-amount application. A bonding material which uses silver nanoparticles, meets the requirements for mass printing, attains dimensional stability, and gives a smooth printed surface is provided. The bonding material includes silver nanoparticles which have at least an average primary particle diameter of 1 nm to 200 nm and have been coated with an organic substance having 8 or less carbon atoms, a dispersion medium, and a viscosity modifier composed of an organic substance, and has a viscosity (measured at a shear rate of 15.7 [1/s]) of 100 Pa·s or lower and a thixotropic ratio (measured at a shear rate of 3.1 [1/s]/measured at a shear rate of 15.7 [1/s]) of 4 or lower.

公开(公告)号：EP2638991A4

公开(公告)日：2014-04-23

申请号：EP11839157

申请日：2011-10-28

Applicant: DOWA ELECTRONICS MATERIALS CO

Inventor： SAITO YU ,  SASAKI SHINYA

IPC: B22F1/02 ,  B22F1/00 ,  H01B1/22 ,  H01B13/00

CPC classification number: C09D5/24 ,  B22F1/0062 ,  B22F2999/00 ,  H01B1/22 ,  B22F2301/255

Abstract: The method for manufacturing a silver particle-containing composition according to the invention is directed to a method for manufacturing a silver particle-containing composition coated with a fatty acid and includes a step (A) of preparing silver particles coated with a first fatty acid (a) with 3 to 7 carbon atoms, a second fatty acid (b) with 2 to 20 carbon atoms, and a solvent in which the first and second fatty acids can disperse, respectively, a step (B) of adding the silver particles coated with the first fatty acid (a) and the second fatty acid (b) into the solvent, and a step (C) of substituting the second fatty acid (b) for the first fatty acid (a) coating the silver particles after the addition step.

公开(公告)号：EP3075710A4

公开(公告)日：2017-07-12

申请号：EP14863704

申请日：2014-10-29

Applicant: DOWA ELECTRONICS MATERIALS CO ,  DOWA IP CREATION CO LTD

Inventor： SASAKI SHINYA ,  ISHIKAWA YOHEI ,  SEKI HARUKA

IPC: C01G49/00 ,  G03G9/107 ,  G03G9/113 ,  H01F1/36

CPC classification number: G03G9/1075 ,  C01G49/0018 ,  C01G49/0072 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2006/40 ,  G03G9/107 ,  G03G9/1132 ,  G03G9/1136 ,  H01F1/36

Abstract: There are provided ferrite particles that have, as a main component, a material represented by a composition formula M × Fe 3-× O 4 (where M is at least one type of metal selected from a group consisting of Mg, Mn, Ca, Ti, Cu, Zn, Sr and Ni, 0

Abstract translation: 本发明提供以组成式M×Fe 3×O 4（式中，M为选自Mg，Mn，Ca，以及它们中的至少一种金属）为代表的材料作为主要成分的铁素体粒子， Ti，Cu，Zn，Sr和Ni，0 <×<1），其中颗粒的最大高度Rz落入1.40至1.90的范围内，颗粒的变形程度Rsk落入-0.25 到-0.07。 这样，当铁氧体颗粒用作电子照相图像形成设备的载体时，即使图像形成速度增加，故障的发生也会长时间地减少。

公开(公告)号：EP2165975A4

公开(公告)日：2012-01-04

申请号：EP08764894

申请日：2008-05-30

Applicant: UNIV TOKYO ,  DOWA ELECTRONICS MATERIALS CO

Inventor： OHKOSHI SHIN-ICHI ,  SAKURAI SHUNSUKE ,  YORINAGA TAKENORI ,  MATSUMOTO KAZUYUKI ,  SASAKI SHINYA

IPC: C01G49/00 ,  C01G51/00 ,  H01F1/00 ,  H01F1/37

CPC classification number: C01G53/006 ,  B82Y30/00 ,  C01G23/002 ,  C01G45/006 ,  C01G49/0018 ,  C01G49/009 ,  C01G51/006 ,  C01P2002/52 ,  C01P2004/04 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/80 ,  C01P2006/42 ,  C04B35/2658 ,  C04B35/2666 ,  C04B35/62807 ,  C04B35/6281 ,  C04B35/62823 ,  C04B2235/3217 ,  C04B2235/3232 ,  C04B2235/3262 ,  C04B2235/3274 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3286 ,  C04B2235/5454 ,  C04B2235/5481 ,  H01F1/344 ,  H01F1/37 ,  H01Q17/00

公开(公告)号：EP2058824A4

公开(公告)日：2011-04-20

申请号：EP07806793

申请日：2007-08-30

Applicant: UNIV TOKYO ,  DOWA ELECTRONICS MATERIALS CO

Inventor： OHKOSHI SHIN-ICHI ,  KUROKI SHIRO ,  SAKURAI SHUNSUKE ,  NAMAI ASUKA ,  SATO KIMITAKA ,  SASAKI SHINYA

IPC: H01F1/34 ,  C01G49/00

CPC classification number: H05K9/0075 ,  B82Y30/00 ,  C01G49/0018 ,  C01G49/0045 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2006/42 ,  C04B35/26 ,  C04B35/62807 ,  C04B35/62813 ,  C04B35/62823 ,  C04B35/62886 ,  C04B2235/3217 ,  C04B2235/3274 ,  C04B2235/3286 ,  C04B2235/5454 ,  H01F1/344