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    • 13. 发明授权
    • Crystalline 1-kestose and process for preparing the same
    • 结晶1-kestose及其制备方法
    • US06479657B1
    • 2002-11-12
    • US09091182
    • 1998-09-29
    • Koji NishizawaHitoshi MatsumotoHirofumi NakamuraTakashi KawakamiYuko NakadaMasao HirayamaTakashi Adachi
    • Koji NishizawaHitoshi MatsumotoHirofumi NakamuraTakashi KawakamiYuko NakadaMasao HirayamaTakashi Adachi
    • C07H106
    • C07H3/06C12P19/18C30B7/00
    • A process for producing crystal 1-kestose wherein granular crystal 1-kestose in the form of large crystals can be produced at a high yield is disclosed. A highly pure solution of 1-kestose is concentrated to a Brix of 75 or higher; either seed crystals are added, or the solution is vacuum-concentrated to generate microcrystals for use as nuclei; then, a crystal growing step by vacuum-concentration and a microcrystal dissolving step for redissolving microcrystals which have formed in the concentrate are repeated at least twice each. Alternatively, a highly pure solution of 1-kestose is concentrated to a Brix of 80 or higher; either seed crystals are added, or the solution is allowed to initiate crystallization; after crystals are allowed to grow, a cooling step where the temperature is lowered by 5° C. to 20° C. from the previous step and a crystal growing step where the concentrate is maintained at the temperature to allow the crystals to grow are repeated at least twice each. Also, an enzyme for producing 1-kestose efficiently from sucrose is disclosed.
    • 公开了一种生产晶体1-晶体的方法,其中可以以高产率制备大晶体形式的颗粒状晶体1-晶体。 1-kestose的高纯度溶液浓缩至75或更高的白利糖度; 加入晶种,或者将溶液真空浓缩以产生用作核的微晶; 然后,通过真空浓缩的晶体生长步骤和在浓缩物中形成的再溶解微晶的微晶溶解步骤重复至少两次。 或者,将高效纯化的1-kestose溶液浓缩至白利糖度为80或更高; 加入晶种,或使溶液开始结晶; 在使晶体生长之后,重复上述步骤的温度降低5℃至20℃的冷却步骤和将浓缩物保持在允许晶体生长的温度的晶体生长步骤 至少两次。 另外,公开了一种从蔗糖中有效产生1-kestose的酶。
    • 18. 发明授权
    • Laser diode pumped solid laser
    • 激光二极管泵浦固体激光器
    • US5315613A
    • 1994-05-24
    • US70922
    • 1993-06-04
    • Nobuharu NozakiShinji MitsumotoYoji OkazakiTakashi Adachi
    • Nobuharu NozakiShinji MitsumotoYoji OkazakiTakashi Adachi
    • G02F1/35H01S3/06H01S3/094H01S3/0941H01S3/109H01S3/16H01S3/09
    • H01S3/09415H01S3/109H01S3/1611
    • A laser diode pumped solid laser comprises a solid laser medium, to which a rare earth metal has been added, a semiconductor laser, which produces a laser beam for pumping the solid laser medium, and a condensing lens, which causes the laser beam to converge in the solid laser medium. The condensing lens is located such that an optical axis of the condensing lens may deviate in the width direction of a semiconductor laser active layer from a center of irradiation area of the semiconductor laser. The amount of light returning to the semiconductor laser is thereby reduced markedly, and good stability in the output power of the laser diode pumped solid laser is obtained. A nonlinear optical material for converting the wavelength of a laser beam, which has been produced by the solid laser medium, into a different wavelength may be located in a solid laser resonator.
    • 激光二极管泵浦固体激光器包括固体激光介质,添加有稀土金属,半导体激光器,其产生用于泵浦固体激光介质的激光束和聚光透镜,其使激光束会聚 在固体激光介质中。 聚光透镜的定位使得聚光透镜的光轴可以从半导体激光器有源层的宽度方向偏离半导体激光器的照射区域的中心。 从而显着降低了返回到半导体激光器的光量,并且获得了激光二极管泵浦固体激光器的输出功率的良好的稳定性。 用于将由固体激光介质产生的激光束的波长转换为不同波长的非线性光学材料可以位于固体激光谐振器中。