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1. 发明专利

JP2002093425A CATALYST FOR AIR CELL AND MANUFACTURING METHOD THEREOF 失效
公开(公告)号：JP2002093425A
公开(公告)日：2002-03-29
申请号：JP2000280317
申请日：2000-09-14
申请人： MATSUSHITA ELECTRIC IND CO LTD , TODA KOGYO CORP
发明人： KOSHIBA NOBUHARU , NAKATSU KENICHI , NAKAMURA TATSUYA , HATAYA MITSUAKI
IPC分类号： H01M4/90 , H01M4/88 , H01M12/06
摘要： PROBLEM TO BE SOLVED: To provide a catalyst producing an electrode which generates improved maintaining voltage with a large current of order of 10 mA/cm2, by improving MnOx (x=4/3 to 8/5). SOLUTION: As the catalyst, MnOx (x=4/3 to 8/5) having an average particle size

2. 发明专利

JP2000252113A PLATY SOFT MAGNETIC FERRITE PARTICLES AND POWDER AND SOFT MAGNETIC FERRITE PARTICLE COMPOSITION USING THE SAME 失效
公开(公告)号：JP2000252113A
公开(公告)日：2000-09-14
申请号：JP5657799
申请日：1999-03-04
申请人： TODA KOGYO CORP
发明人： OKANO YOJI , NAKAMURA TATSUYA
IPC分类号： H01F1/36 , C01G49/00 , H01Q17/00 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To obtain a soft magnetic ferrite particle composite which has a high real part in permeability in low frequency band and can absorb electromagnetic waves over a wide band in high frequency band, by forming the soft magnetic ferrite particles and powder used for forming the composite in platy shapes and specifying the composition of the particles and powder. SOLUTION: The composition of soft magnetic ferrite particles and powder satisfies a formula, MgaCubZncFedO4 (where, 0.3

3. 发明专利

JPH10310430A PRODUCTION OF LITHIUM COBALT OXIDE 失效
公开(公告)号：JPH10310430A
公开(公告)日：1998-11-24
申请号：JP7487398
申请日：1998-03-09
申请人： TODA KOGYO CORP
发明人： NAKAMURA TATSUYA , SUGANO RIYOUJI , TAKANO MIKIO
IPC分类号： C01G51/00 , H01M4/525 , H01M10/05
摘要： PROBLEM TO BE SOLVED: To obtain the lithium cobalt oxide high in electromotive force and having the layer halite crystal structure appropriate as the positive electrode active material of a lithium cell capable of being increased in energy density by allowing cobalt oxyhydroxide to react with a lithium compd. in the presence of alcohol. SOLUTION: The cobalt oxyhydroxide (CoO(OH)) is obtained by heating the suspension of cobalt (II) hydroxide in water at 50-100 deg.C and blowing air into the suspension. A lithium compd. (e.g. lithium oxide) and cobalt oxyhydroxide are mixed in 1.0-3.0 ratio of Li/Co. In the reaction, 10-200 g of the mixture of cobalt oxyhydroxide and the lithium compd. is added to one liter of an alcohol (having a b.p. higher than the heating temp. of the suspension) and heated at 60-200 deg.C for 5-50 hr. The formed lithium cobalt oxide is annealed at 200-500 deg.C in an oxidizing atmosphere for 30 min to 2 hr.

4. 发明专利

JPH1067518A PRODUCTION OF LITHIUM IRON OXIDE POWDER 失效
公开(公告)号：JPH1067518A
公开(公告)日：1998-03-10
申请号：JP24114796
申请日：1996-08-23
申请人： TODA KOGYO CORP
发明人： NAKAMURA TATSUYA , SUGANO RIYOUJI , TAKANO MIKIO
IPC分类号： C01G49/00 , C01G51/00 , C01G53/00 , H01M4/525 , H01M4/52
摘要： PROBLEM TO BE SOLVED: To obtain the subject powder excellent in storage stability, useful as an anode active substance of an Li battery by washing lithium iron oxide powder having a zigzag layer structure prepared by a prescribed method with water, filtering, drying and heating the powder at a specific temperature. SOLUTION: Mixed powder of lepidocrocite powder which is generally shown by the formula γ-(Fe1- AMA)OOH (M is Al, Co, Mn, Ni, etc.; 0 =1.2 is heated at 100-150 deg.C to give a lithium iron oxide powder having a zigzag layer structure, which is washed with water at

5. 发明专利

JPH1067517A LITHIUM IRON OXIDE POWDER AND ITS PRODUCTION 失效
公开(公告)号：JPH1067517A
公开(公告)日：1998-03-10
申请号：JP24114596
申请日：1996-08-23
申请人： TODA KOGYO CORP
发明人： NAKAMURA TATSUYA , SUGANO RIYOUJI , TAKANO MIKIO
IPC分类号： C01G49/00 , H01M4/525 , H01M4/52
摘要： PROBLEM TO BE SOLVED: To obtain the subject powder high in crystallinity and excellent in electrochemical reversibility, useful as an anode active substance of an Li battery, comprising a specific lithium iron oxide containing a fixed amount of aluminum. SOLUTION: This lithium iron oxide powder comprises Lix (Fe, Al)O2 (0 =1.2 at 100-150 deg.C. Preferably, an anhydrous Li compound is used.

6. 发明专利

JPH0629145B2 失效
公开(公告)号：JPH0629145B2
公开(公告)日：1994-04-20
申请号：JP4177887
申请日：1987-02-25
申请人： TODA KOGYO CORP
发明人： KUROKAWA HARUMI , NAKAMURA TATSUYA , SADAMURA HIDEAKI
IPC分类号： C01G49/06 , C01G49/08 , H01F1/11

7. 发明专利

JPH0629144B2 失效
公开(公告)号：JPH0629144B2
公开(公告)日：1994-04-20
申请号：JP31354186
申请日：1986-12-24
申请人： TODA KOGYO CORP
发明人： NAKAMURA TATSUYA , KUROKAWA HARUMI
IPC分类号： C01G49/06 , H01F1/11

8. 发明专利

JPH0573698B2 失效
公开(公告)号：JPH0573698B2
公开(公告)日：1993-10-14
申请号：JP31416886
申请日：1986-12-25
申请人： TODA KOGYO CORP
发明人： NAKAMURA TATSUYA , KUROKAWA HARUMI
IPC分类号： C01G49/06 , C01G49/08 , G03G9/083 , H01F1/11

9. 发明专利

JPH0557212B2 失效
公开(公告)号：JPH0557212B2
公开(公告)日：1993-08-23
申请号：JP20981486
申请日：1986-09-05
申请人： TODA KOGYO CORP
发明人： NAKAMURA TATSUYA , KUROKAWA HARUMI
IPC分类号： C01G49/02

10. 发明专利

JPH05206676A RADIO WAVE ABSORBER 失效
公开(公告)号：JPH05206676A
公开(公告)日：1993-08-13
申请号：JP3564792
申请日：1992-01-27
申请人： NEC CORP , TODA KOGYO CORP , NEC ENVIRONMENT ENG LTD
发明人： HATAKEYAMA KENICHI , YAMAMOTO SHIGEHISA , NAKAMURA TATSUYA , SHIMIZU SHIGEMI
IPC分类号： B32B7/02 , H01F1/00 , H01F1/34 , H05K9/00
摘要： PURPOSE:To avoid radio wave interference by a method wherein a magnetic material layer is composed of laminated magnetic sheets and bonded permanent magnet sheets. CONSTITUTION:A magnetic material layer 2 is composed of laminated magnetic sheets and bonded permanent magnet sheets. Not less than 90wt.% of soft ferrite particles having diameters of 0.5mum-5mm are kneaded with resin and the mixture is processed into a sheet having a thickness of 3-30mm to obtain the magnetic sheet. Hard ferrite particles are kneaded with resin and the mixture is processed into a sheet having a thickness of 2-30mm and the sheet is magnetized to obtain the bonded permanent magnet sheet. One or both sides of the magnetic sheet is or are cladded with the bonded permanent magnet sheet or sheets or the magnetic sheets and the bonded permanent magnet sheets are alternately laminated to compose a multilayer bonded magnetic unit. The surface magnetic flux density of the bonded permanent magnet sheet is not less than 100G. With this constitution, processability, moldability and installability can be improved and the radio wave absorber of the present invention can be easily applied to the wall of a building, etc., to avoid radio wave interference.

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