Tdk Corporation

Kensuke Ara

Hajime Amano

Hiroyuki Matsumoto

Kazuhiro Yoshidome

Kenji Horino

Akito Hasegawa

Akihiro Harada

Seigo Tokoro

Masakazu Hosono

Tetsushi Inoue

Tetsuji Fujita

Takuma Nakano

Satoko Mori

Shota Otsuka

Yutaka Saito

Masahito Koeda

Sei Kakinuma

A soft magnetic alloy includes a main component of (FeX1X2)MBPSiC. X1 is one or more of Co and Ni. X2 is one or more of Al, Mn, Ag, Zn, Sn, As, Sb, Cu, Cr, Bi, N, O, and rare earth elements. M is one or more of Nb, Hf, Zr, Ta, Mo, W, and V. 0.020≤a≤0.14 is satisfied. 0.020<b≤0.20 is satisfied. 0≤d≤0.060 is satisfied. α≥0 is satisfied. β≥0 is satisfied. 0≤α+β≤0.50 is satisfied. c and e are within a predetermined range. The soft magnetic alloy has a nanohetero structure or a structure of Fe based nanocrystallines.

Soft magnetic alloy and magnetic device

There is provided a soft magnetic alloy comprising a composition expressed by a formula of (FeA)MXY, in which M represents at least one selected from the group consisting of Zr and Hf, X represents at least one selected from the group consisting of Ni, Mn, Cu, Co, Al, and Ge, Y represents at least one selected from the group consisting of B, P, and Si, A represents at least one selected from the group consisting of Ti, V, Cr, Zn, Mg, Sn, Bi, O, N, S, and a rare earth element, m, x, y, and α satisfy relationships of 0.070≤m≤0.120, 0.001≤x≤0.030, 0≤y≤0.010, and 0≤α≤0.100, and the alloy contains Fe-based nanocrystals having an average crystal grain size of 30 nm or less.

Soft magnetic alloy, magnetic core, and magnetic component

A soft magnetic alloy comprising a main component having a compositional formula of ((FeX1X2)MBCr)C, and a sub component including P, S and Ti, wherein X1 is selected from the group Co and Ni, X2 is selected from the group Al, Mn, Ag, Zn, Sn, As, Sb, Bi and rare earth elements, 'M' is selected from the group Nb, Hf, Zr, Ta, Mo, W and V, 0.030&#x2264;a&#x2264;0.14, 0.005&#x2264;b&#x2264;0.20, 0&#x3c;c&#x2264;0.040, 0&#x2264;d&#x2264;0.040, &#x3b1;&#x2265;0, &#x3b2;&#x2265;0, and 0&#x2264;&#x3b1;+&#x3b2;&#x2264;0.50 are satisfied, when soft magnetic alloy is 100 wt %, P is 0.001 to 0.050 wt %, S is 0.001 to 0.050 wt %, and Ti is 0.001 to 0.080 wt %, and when a value obtained by dividing P by S is P/S, then P/S satisfies 0.10&#x2264;P/S&#x2264;10.

Provided is a soft magnetic alloy which has high saturation flux density and low coercivity and is represented by the compositional formula (FeX1X2)MPSiCuX3B, wherein X1 is at least one element selected from the group consisting of Co and Ni, X2 is at least one element selected from the group consisting of Ti, V, Mn, Ag, Zn, Al, Sn, As, Sb, Bi, and rare earth elements, X3 is at least one element selected from the group consisting of C and Ge, and M is at least one element selected from the group consisting of Zr, Nb, Hf, Ta, Mo, and W, and wherein 0.030&#x2264;a&#x2264;0.120, 0.010&#x2264;b&#x2264;0.150, 0&#x2264;c&#x2264;0.050, 0&#x2264;d&#x2264;0.020, 0&#x2264;e&#x2264;0.100, 0&#x2264;f&#x2264;0.030, &#x3b1;&#x2265;0, &#x3b2;&#x2265;0, and 0&#x2264;&#x3b1;+&#x3b2;&#x2264;0.55.

Soft magnetic alloy and magnetic component

Provided is a soft magnetic alloy having a composition of a compositional formula (FeX1X2)))PCSiCuM. X1 is one or more selected from a group consisting of Co and Ni, X2 is one or more selected from a group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, 0, and rare earth elements, and M is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, W and V. 0.050&#x2264;a&#x2264;0.17, 0&#x3c;b&#x3c;0.050, 0.030&#x3c;c&#x2264;0.10, 0&#x3c;d&#x2264;0.020, 0&#x2264;e&#x2264;0.030, &#x3b1;&#x2265;0, &#x3b2;&#x2265;0, and 0&#x2264;&#x3b1;+&#x3b2;&#x2264;0.50.

A soft magnetic alloy including a compositional formula of ((FeX1X2)MBPCu)C, wherein X1 is one or more selected from the group consisting Co and Ni, X2 is one or more selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O, and rare earth elements, 'M' is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, W, and V, 0.030&#x3c;a&#x2264;0.14, 0.028&#x2264;b&#x2264;0.20, 0&#x2264;c&#x2264;0.030, 0&#x3c;e&#x2264;0.030, 0&#x3c;f&#x2264;0.040, &#x3b1;&#x2265;0, &#x3b2;&#x2265;0, and 0&#x2264;&#x3b1;+&#x3b2;&#x2264;0.50 are satisfied.

A soft magnetic alloy contains a main component having a composition formula of (FeX1X2)MBPCand auxiliary components including at least Ti, Mn and Al. In the composition formula, X1 is one or more selected from the group consisting of Co and Ni, X2 is one or more selected from the group consisting of Ag, Zn, Sn, As, Sb, Bi and a rare earth element, and M is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Mo, W and V. In the composition formula, 0.030&#x2264;a&#x2264;0.100, 0.050&#x2264;b&#x2264;0.150, 0&#x3c;c&#x2264;0.030, 0&#x3c;d&#x2264;0.030, &#x3b1;&#x2265;0, &#x3b2;&#x2265;0, and 0&#x2264;&#x3b1;+&#x3b2;&#x2264;0.50 are satisfied. In the soft magnetic alloy, a content of Ti is 0.001 to 0.100 wt %, a content of Mn is 0.001 to 0.150 wt %, and a content of Al is 0.001 to 0.100 wt %.

A soft magnetic alloy which includes nanocrystal parts and amorphous parts is provided. The nanocrystal parts include &#x3b1;Fe(&#x2014;Si) as a main component, and include at least one of elements selected from B, P, C, Ti, Zr, Hf, Nb, Ta, Mo, V, W, Cr, Al, Mn, Zn, and Cu as a sub-component. When a total content ratio of the sub-component in the nanocrystal parts is set as &#x3b1; (at %), and a total content ratio of the sub-components of the nanocrystal parts included in the amorphous parts is set as &#x3b2; (at %), 0.01&#x2264;(&#x3b1;/&#x3b2;)&#x2264;0.40, and a crystallinity degree is 5% or more and 70% or less.

A soft magnetic alloy including a composition having a formula of ((FeX1X2)MBCrCu)C. X1 is one or more elements selected from a group of Co and Ni. X2 is one or more elements selected from a group of W, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O, and rare earth elements. M is one or more elements selected from a group of Nb, Hf, Zr, Ta, Ti, Mo, and V. 0.030&#x2264;a&#x2264;0.14, 0.028&#x2264;b&#x2264;0.15, 0.005&#x2264;d&#x2264;0.020, 0&#x3c;e&#x2264;0.030, 0&#x2264;f&#x2264;0.040, &#x3b1;&#x2265;0, &#x3b2;&#x2265;0, and 0&#x2264;&#x3b1;+&#x3b2;&#x2264;0.50 are satisfied.

A soft magnetic alloy including a main component having a compositional formula of (FeX1X2)MBP, and a sub component including at least C, S and Ti, wherein X1 is one or more selected from the group including Co and Ni, X2 is one or more selected from the group including Al, Mn, Ag, Zn, Sn, As, Sb, Bi, and rare earth elements, 'M' is one or more selected from the group including Nb, Hf, Zr, Ta, Mo, W, and V, 0.020&#x2264;a&#x2264;0.14, 0.020&#x2264;b&#x2264;0.20, 0&#x2264;c&#x2264;0.040, &#x3b1;&#x2265;0, &#x3b2;&#x2265;0, and 0&#x2264;&#x3b1;+&#x3b2;&#x2264;0.50 are satisfied, when entire said soft magnetic alloy is 100 wt %, a content of said C is 0.001 to 0.050 wt %, a content of said S is 0.001 to 0.050 wt %, and a content of said Ti is 0.001 to 0.080 wt %, and when a value obtained by dividing the content of said C by the content of said S is C/S, then C/S satisfies 0.10&#x2264;C/S&#x2264;10.

The invention aims to provide a perylene derivative preparation process featuring satisfactory yields and improved preparation efficiency, a perylene derivative obtained by the process, and an organic EL device using the same. The object is achieved by a perylene derivative preparation process comprising subjecting to coupling reaction a 1,8-dihalogenated naphthalene derivative of the formula (1): wherein X is Cl, Br or I, Rto R, Rand Reach are hydrogen, alkyl, alkoxy, alkylthio, alkenyl, alkenyloxy, alkenylthio, aralkyl, aralkyloxy, aralkylthio, aryl, aryloxy, and arylthio radicals which may be substituted, amino radical, cyano radical, hydroxyl radical, &#x2014;COOMradical (wherein Mis hydrogen, alkyl, alkenyl, aralkyl or aryl), &#x2014;COMradical (wherein Mis hydrogen, alkyl, alkenyl, aralkyl, aryl or amino), or &#x2014;OCOMradical (wherein Mis alkyl, alkenyl, aralkyl or aryl), and at least two adjoining radicals selected from among Rto R, Rand Rmay bond or fuse together to form a substituted or unsubstituted carbocyclic aliphatic ring, aromatic ring or fused aromatic ring with the carbon atoms on which they substitute, with the proviso that when the carbocyclic aliphatic ring, aromatic ring or fused aromatic ring has substituent radicals, the substituent radicals are the same as Rto R, Rand R, to thereby synthesize a perylene derivative of the formula (2): wherein R' to R&#x2032;, R&#x2032; and R&#x2032; are as defined for Rto R, Rand Rin formula (1), and Rto R, Rand Rand R&#x2032; to R&#x2032;, R&#x2032; and R&#x2032; may be the same or different.

Perylene derivative synthesis process, perylene derivative and organic EL device

The invention aims to provide a perylene derivative preparation process featuring satisfactory yields and improved preparation efficiency, a perylene derivative obtained by the process, and an organic EL device using the same.

In an organic EL device comprising organic layers between a pair of electrodes participating in at least a light emitting function, at least one organic layer contains an organic compound selected from naphthacene, tetraaryldiamine, anthracene and quinoxaline derivatives as a host material and an organic compound having a specific skeleton, typically diindeno&lsqb;1,2,3-cd:1&prime;,2&prime;,3&prime;-lm&rsqb;perylene derivative as a dopant. The device is capable of light emission to a satisfactory luminance, especially in a long wavelength region, and with a chromatic purity sufficient for use in full color displays, and had a sufficient durability to sustain such improved light emission performance over a long time.

Organic EL device

A ferrite core of the invention is useful for reducing the power loss of Ni--Cu--Zn ferrites, and so for particle accelerators, and power transformers. This core comprises a ferrite magnetic material containing as major components 47 to 50 mol % of iron oxide calculated as Fe.sub.2 O.sub.3, 10 to 25 mol % of nickel oxide calculated as NiO, 2 to 15 mol % of copper oxide calculated as CuO and 15 to 35 mol % of zinc oxide calculated as ZnO, and further containing as subordinate components 0.05 to 1.5 wt % of cobalt oxide calculated as CoO, 0.05 to 0.8 wt % of tungsten oxide calculated as WO.sub.3 and 0.03 to 0.5 wt % of bismuth oxide calculated as Bi.sub.2 O.sub.3, all based on the major components. Consequently, there is achieved a ferrite core having a power loss at 100.degree. C. of up to 210 kW/m.sup.3, and a power loss at 25.degree. C. of up to 140 kW/m.sup.3, as measured at f.multidot.Bm product=25 kTHz (f=1 to 10 MHz).

Growing community of inventors

Tokyo, Japan

Kensuke Ara