公开(公告)号：US06409846B1

公开(公告)日：2002-06-25

申请号：US09527245

申请日：2000-03-17

申请人： Hiromichi Takemura ,  Susumu Tanaka ,  Shigeru Okita

发明人： Hiromichi Takemura ,  Susumu Tanaka ,  Shigeru Okita

IPC分类号： C22C3822

CPC分类号： F16C33/62 ,  F16C2204/70 ,  Y10S148/906 ,  Y10S384/912

摘要： In a rolling bearing having a fixed race, a rotary race and a plurality of rolling elements disposed between said fixed race and said rotary race, at least said fixed race is made of a steel having 0.35 to 0.55% by weight of C, 11.0 to 17.0% by weight of Cr, 0.05 to less than 0.2% by weight of N and the rest of Fe and unavoidable components. Further, the sum of the content of C and N is from 0.45 to 0.65% by weight or less, and exhibits a surface hardness HRC of 57 or more after heat treatment and the diameter of eutectic carbide produced on said bearing races is 10 &mgr;m or less.

摘要翻译： 在具有固定座圈，旋转座圈和设置在所述固定座圈和所述旋转座圈之间的多个滚动元件的滚动轴承中，至少所述固定座圈由具有0.35至0.55重量％的C，11.0至 17.0重量％的Cr，0.05〜小于0.2重量％的N，其余的Fe和不可避免的成分。 此外，C和N的含量之和为0.45〜0.65重量％以下，热处理后的表面硬度HRC为57以上，所述轴承座上产生的共晶碳化物的直径为10um， 减。

公开(公告)号：US06233710B1

公开(公告)日：2001-05-15

申请号：US09078423

申请日：1998-05-13

申请人： Shigeru Okita

发明人： Shigeru Okita

IPC分类号： H03M1300

CPC分类号： H03M13/158 ,  H03M13/1515

摘要： To offer a Reed-Solomon decoding device that can effectively prevent erroneous correction. A Reed-Solomon decoding method that conducts error correction and decodes by using erasure positions showing the position of units of errors for a Reed-Solomon encoded string having parity data of 2t (positive integer) units, which finds the number n for the unit of the error from the above-mentioned erasure position (S13), in the event 0 ≦m1≦n≦m2≦2t (m1, m2, and n are positive integers) (S14, S15, S18), finds the error value by conducting decoding calculations for the erasure error correction of n units (S19), and conducts the error operation by using the above-mentioned error value and the above-mentioned erasure position (S17).

摘要翻译： 提供可以有效防止错误校正的Reed-Solomon解码设备。 Reed-Solomon解码方法，其通过使用具有2t（正整数）个单元的奇偶校验数据的Reed-Solomon编码串的错误单位的位置的擦除位置进行纠错和解码，该奇偶校验数据为单位为 在上述擦除位置（S13）中的错误（S14，S15，S18）中，在0 <= m1 <= n <= m2 <= 2t（m1，m2，n为正整数）的情况下， 通过对n个单元的擦除误差校正进行解码计算的误差值（S19），并通过使用上述误差值和上述擦除位置进行误差运算（S17）。

公开(公告)号：US6131179A

公开(公告)日：2000-10-10

申请号：US74559

申请日：1998-05-07

申请人： Shigeru Okita

发明人： Shigeru Okita

IPC分类号： H03M13/00 ,  H03M13/15

CPC分类号： H03M13/158 ,  H03M13/1515

摘要： The objective of the invention is to offer a Reed-Solomon decoding device in which it is possible to perform decoding calculations at high speed without greatly increasing the circuit scale. The present invention has a decoding calculation input parameter calculator 309 that generates decoding calculation input parameters including syndrome and fail data from a data string, a decoding calculator processing section 304 that performs decoding calculations using the decoding calculation input parameters based on the command codes showing the prescribed decoding calculation operation, and generates decoding calculation output parameters including error value data and error position data, a correction operation implementer 312 that performs correction operations by using the above-mentioned decoding calculation output parameters, and a register B 313 that selectively stores the decoding calculation input parameters output to the decoding calculation processing section 304, and the decoding calculation output parameters that are output to the corrections operation implementer 312.

摘要翻译： 本发明的目的是提供一种Reed-Solomon解码装置，其中可以高速执行解码计算，而不会大大增加电路规模。 本发明具有一个解码计算输入参数计算器309，该计算输入参数计算器309从数据串中产生包括校正子和失败数据的解码计算输入参数，解码计算器处理部分304，使用解码计算输入参数，基于表示 并且生成包括误差值数据和误差位置数据的解码计算输出参数，通过使用上述解码计算输出参数进行校正操作的校正操作实现器312以及选择性地存储解码的寄存器B 313 输出到解码运算处理部304的计算输入参数，以及输出到修正运算执行部312的解码运算输出参数。

公开(公告)号：US5660650A

公开(公告)日：1997-08-26

申请号：US575523

申请日：1995-12-20

申请人： Shigeru Okita ,  Shizuo Mitsuhashi ,  Kazuo Hayakawa ,  Akihiro Kiuchi

发明人： Shigeru Okita ,  Shizuo Mitsuhashi ,  Kazuo Hayakawa ,  Akihiro Kiuchi

IPC分类号： C21D1/18 ,  C21D1/00 ,  C21D8/10 ,  C21D9/40

CPC分类号： C21D8/10 ,  C21D9/40 ,  C21D1/00

摘要： In a method and an apparatus for correcting a hardening deformation of an annular element made out of steel, during the cooling stage of hardening, the annular element which still has an austenitic structure is subjected to working on either the outside or inside diameter, with the degree of working being 0.05-1.0% if it is on the outside diameter with the annular element being pressed into a mold, and 0.5-3.0% if the working is on the inside diameter. Thus the deformation that develops in annular steel elements due to heat treatments is effectively corrected to yield completely round, strain-free or deformation-free annular elements.

摘要翻译： 在用于校正由钢制成的环形元件的硬化变形的方法和装置中，在硬化冷却阶段期间，仍然具有奥氏体结构的环形元件在外径或内径上进行加工， 如果环形元件被压入模具中，其在外径上的工作程度为0.05-1.0％，如果工作在内径上，工作程度为0.5-3.0％。 因此，由于热处理而在环形钢元件中产生的变形被有效地校正，以产生完全圆形，无应变或无变形的环形元件。

公开(公告)号：US5298323A

公开(公告)日：1994-03-29

申请号：US594369

申请日：1990-10-09

申请人： Hiroshi Narai ,  Tsutomu Abe ,  Shigeru Okita

发明人： Hiroshi Narai ,  Tsutomu Abe ,  Shigeru Okita

IPC分类号： C22C32/00 ,  F16C33/30 ,  F16C33/62 ,  B32B18/00

CPC分类号： C22C32/0026 ,  F16C33/30 ,  F16C33/62 ,  Y10S148/906 ,  Y10T428/12486 ,  Y10T428/12611 ,  Y10T428/252 ,  Y10T428/257 ,  Y10T428/2993 ,  Y10T428/31678

摘要： A long-life bearing steel and a long-life rolling bearing made of the steel are disclosed. In the steel, the number of oxide or oxide-based inclusion particles in a given unit area A of 160 mm.sup.3 with an average particle size of 3 to 30 .mu.m is 80 or less and an abundance of oxide or oxide-base inclusion particles with 10 .mu.m or more average particle size to oxide or oxide-based inclusion particles having an average particle size of 3 to 30 .mu.m is below 2%. An electron beam melting extraction evaluation method irradiating electron beam under the following condition guarantees the cleanness of the steel: 350 V+100.ltoreq.J.ltoreq.700 V+200, wherein J represents electric charge power in W provided by electron beam and V represents a sample volume in cm.sup.3.

摘要翻译： 公开了一种长寿命轴承钢和由钢制成的长寿命滚动轴承。 在钢中，平均粒径为3〜30（my）m的给定单位面积A为160mm 3的氧化物或氧化物系夹杂物的数量为80以下，氧化物或氧化物系夹杂物的含量多 平均粒径为3〜30（my）m的氧化物或氧化物系夹杂物的平​​均粒径为10（μm）以上的粒子的含量低于2％。 在以下条件下照射电子束的电子束熔融提取评估方法保证了钢的清洁度：350V + 100 <= J <= 700V + 200，其中J表示由电子束提供的电荷功率，V表示 样品体积（cm3）。