公开(公告)号：DE68927203D1

公开(公告)日：1996-10-24

申请号：DE68927203

申请日：1989-05-18

Applicant: SEIKO EPSON CORP ,  KOBE STEEL LTD

Inventor： KOBAYASHI OSAMU ,  SHIMODA TATSUYA ,  AKIOKA KOJI ,  YAMAGAMI TOSHIAKI ,  KAWAI NOBUYASU

IPC: H01F1/057 ,  H01F41/02 ,  H01F1/04

Abstract: This invention relates to a permanent magnet having magnetic anisotropy given by means of a newly developed mechanical alignment and a manufacturing method thereof, and more particularly to a magnet comprising R(at least one rare-earth element selected from the group consisting of Pr, Nd, Dy, Ce, La, Y and Tb), M(at least one transition metal selected from the group consisting of Fe, Co, Cu, Ag, Au, Ni and Zr) and X(at least one IIIb element of the periodic table selected from the group consisting of B, Ga and Al) and manufacturing method thereof, said alloy of R-M-X series, which composes basic component, are melted and cast, then cast ingot is hot-worked at the temperature above 500 C to remove or eliminate liquid phase of non-magnetic R-rich phase to concentrate magnetic phase, and to give magnetic anisotropy by means of mechanical alignment. It can provide magnet with excellent property comparable to that of the magnet provided by the conventional manufacturing method while applying cast hot-working heat treatment process which does not includes powdering process.

公开(公告)号：DE3626406C2

公开(公告)日：1996-05-02

申请号：DE3626406

申请日：1986-08-04

Applicant: SEIKO EPSON CORP

Inventor： AKIOKA KOJI ,  SHIMODA TATSUYA ,  ISHIBASHI TOSHIYUKI ,  OZAKI RYUICHI

IPC: B22F9/02 ,  C21D6/00 ,  C21D8/12 ,  C22C1/02 ,  C22C1/04 ,  C22C38/00 ,  C22C38/10 ,  C22C38/16 ,  H01F1/057 ,  C22F1/10

公开(公告)号：AT107795T

公开(公告)日：1994-07-15

申请号：AT87308666

申请日：1987-09-30

Applicant: SEIKO EPSON CORP

Inventor： AKIOKA KOJI ,  KOBAYASHI OSAMU ,  SHIMODA TATSUYA

IPC: H01F1/057 ,  H01F1/053 ,  H01F41/02

Abstract: A permanent magnet made from an alloy comprising at least one rare earth element, iron and boron characterised in that the average grain diameter of the crystals of the alloy is not more than 150 mu m, the carbon content and the oxygen content of the alloy being not more than 400 ppm and not more than 1000 ppm respectively.

公开(公告)号：DE3889996D1

公开(公告)日：1994-07-14

申请号：DE3889996

申请日：1988-03-01

Applicant: SEIKO EPSON CORP

Inventor： AKIOKA KOJI ,  KOBAYASHI OSAMU ,  SHIMODA TATSUYA

IPC: C21D6/00 ,  B22F9/02 ,  B22F9/16 ,  C21D8/12 ,  C22C1/04 ,  C22C38/00 ,  C22C38/10 ,  C22C38/16 ,  H01F1/053 ,  H01F1/057 ,  H01F1/04

Abstract: This improved rare earth element-ironbase permanent magnet is produced as follows, 1) a cast ingot is prepd. by melting and casting an alloy (A) comprising at least one rare-earth metal represented by R, and Fe, B and Cu. 2) fine and magnetically anisotropic crystal particles are obtained by hot working the cast ingot at 500 deg. C or higher. If this hot-working is preceded or followed by heat treatment at 250 deg. C or higher the persistance of the magnetic power will be increased. The alloy (A) comprises R (8-30%), B (2-28%), Cu (6% or less), and Fe and unavoidable impurities . The unavoidable impurities S (2 atomic % or less), C (4 atomic % or less) and P (4 atomic % or less) are contained in the alloy. The Fe component can be replaced by Co 50 atomic % or less. One or more than one element selected from among Ga, Al, Si, Bi, V, Nb, Ta, Cr, Mo, W, Ni, Mn, Ti, Zr and Hf can be added to the alloy in the range of 6 atomic % or less. R can be composed of one or more than one component selected from Pr, Nd, Pr-Nd alloy, Ce-Pr-Nd alloy, rare earth elements. A modified process for producing the magnet is that after hot working , the alloy is ground and crushed, and the obtained powder is kneaded with an organic binder and moulded to produce the magnet. .

公开(公告)号：CA1322454C

公开(公告)日：1993-09-28

申请号：CA586990

申请日：1988-12-23

Applicant: DIESEL KIKI CO ,  SEIKO EPSON CORP

Inventor： YAMAHA YOSHIKAZU ,  TAKAGI NOBUKAZU ,  SHIMODA TATSUYA ,  SETO TAKESHI ,  ENDO KENICHI

IPC: F04C29/00 ,  H02K1/02 ,  H02K1/27 ,  H02K15/03 ,  H02K29/08 ,  H02P6/24 ,  F04B49/00

Abstract: : Here is disclosed an air conditioner comprising a scroll type compressor and a brushless DC motor having a rotor provided with a permanent magnet and a stator provided with a sensor adapted to detect a relative position of said rotor and said stator. Here is additionally disclosed an air conditioner in which the rotor of the brushless DC motor comprises a permanent magnet basically made of rare earth elements inclusive of yttrium, transition metal and boron and a driving circuit for the motor includes a braking circuit adapted to excite coils of the motor and thereby to block the rotor against a reverse rotation.

公开(公告)号：DE69940660D1

公开(公告)日：2009-05-14

申请号：DE69940660

申请日：1999-10-19

Applicant: SEIKO EPSON CORP

Inventor： SHIMODA TATSUYA ,  INOUE SATOSHI

IPC: B41J2/00 ,  G09F9/37 ,  B41J2/385 ,  B41J2/435 ,  B41J3/407 ,  G02F1/167

Abstract: An electronic paper printer is provided that is capable of describing display patterns properly and definitely on rewritable electronic paper. An electronic paper printer 1 has a describing head 3 for describing display patterns on electronic paper 2 capable of having display patterns rewritten thereto and erased therefrom, using electrophoresis, an erasing head 4 for erasing display patterns described on the electronic paper 2, a drive mechanism (not shown) for driving the describing head 3 and the erasing head 4 so that they turn, and a conveyor mechanism (not shown) for conveying the electronic paper 2. The describing head 3 is configured by a pair of drums 31 and 32 supported so that they freely turn. The erasing head 4 is configured by a pair of drums 41 and 42 supported so that they freely turn.

公开(公告)号：DE60040107D1

公开(公告)日：2008-10-09

申请号：DE60040107

申请日：2000-01-21

Applicant: SEIKO EPSON CORP

Inventor： HASEGAWA KAZUMASA ,  SHIMODA TATSUYA

IPC: B41J2/045 ,  G09G3/34 ,  B06B1/06 ,  G02F1/167 ,  H01L27/20 ,  H01L41/09 ,  H01L41/107

Abstract: A thin film piezoelectric transducer comprises a first electrode layer (24), piezoelectric film layer (25), second electrode layer (26), and third electrode layer (27) formed on a supporting base (22) wherein a cavity (21) is formed. The second electrode layer (26) and the third electrode layer (27) are formed in a pair with a space therebetween on the piezoelectric film layer (25) located above said cavity (21).

公开(公告)号：DE60038931D1

公开(公告)日：2008-07-03

申请号：DE60038931

申请日：2000-03-29

Applicant: SEIKO EPSON CORP ,  JSR CORP

Inventor： SEKI SHUNICHI ,  SHIMODA TATSUYA ,  MIYASHITA SATORU ,  FURUSAWA MASAHIRO ,  YUDASAKA ICHIO ,  MATSUKI YASUO ,  TAKEUCHI YASUMASA

IPC: H01L21/208 ,  C01B33/02 ,  C23C18/06 ,  C23C18/08 ,  C23C18/12 ,  H01L21/336 ,  H01L31/18 ,  H01L51/00 ,  H01L51/40

Abstract: An ink composition 11 containing a silicon precursor is selectively discharged into predetermined regions on a substrate from an ink jet head 12 to form a pattern of the silicon precursor, and is subjected to a heat and/or light treatment to convert the silicon precursor into an amorphous silicon film 15 or a polycrystalline silicon film 16. A silicon film pattern is thereby obtained on a large area at low cost with low energy.

公开(公告)号：DE69938491D1

公开(公告)日：2008-05-21

申请号：DE69938491

申请日：1999-09-24

Applicant: SEIKO EPSON CORP ,  TERASHIMA KAZUO

Inventor： TERASHIMA KAZUO ,  SEKI SHUNICHI ,  SHIMODA TATSUYA ,  IZAKI TAKESHI

IPC: B29C59/14 ,  H05H1/24 ,  C23C14/18 ,  C23C16/50 ,  C23F4/00 ,  H01J37/32 ,  H01L21/3065 ,  H05H1/46

Abstract: The substrate electrode plasma generating apparatus is constituted of an array of small gap thin film electrode pairs 1, 2, 3, and 4 formed by sputtering and dry etching tungsten on a silicon substrate 5 with an oxidized surface.

公开(公告)号：DE69935179T2

公开(公告)日：2007-12-20

申请号：DE69935179

申请日：1999-05-26

Applicant: SEIKO EPSON CORP

Inventor： NEBASHI SATOSHI ,  NISHIKAWA TAKAO ,  SHIMODA TATSUYA

IPC: B41F17/14 ,  H01L21/027 ,  B29C45/26 ,  B41J2/01 ,  B41M1/12 ,  G02F1/1335 ,  G02F1/1343 ,  G03F7/34 ,  H01L21/30 ,  H01L21/311 ,  H01L21/3213 ,  H05K3/10 ,  H05K3/12

Abstract: A template 1 is brought close to or in contact with a surface to be patterned 111 and patterns are formed with liquid 62 on the surface 111. This method comprises the steps of: bringing the template 1 close to or essentially in contact with the surface 111, supplying liquid 62 to a plurality of through holes 12 established in the pattern transfer region 10 of the template 1 for supplying the liquid 62, and separating the template 1 from the surface 111 after the liquid 62 is adhered to the surface 111 via the through holes 12.