Single-crystal – oriented-crystal – and epitaxy growth processes; – Processes of growth from liquid or supercritical state – Having growth from a solution comprising a solvent which is...
Reexamination Certificate
2007-07-24
2007-07-24
Kunemund, Robert (Department: 1722)
Single-crystal, oriented-crystal, and epitaxy growth processes;
Processes of growth from liquid or supercritical state
Having growth from a solution comprising a solvent which is...
C117S069000, C117S070000, C117S904000, C117S925000, C117S926000, C117S927000
Reexamination Certificate
active
10525809
ABSTRACT:
The present invention relates to a process for producing high-quality crystals of protein or organic substances easily and efficiently. A solution of protein or an organic substance is prepared and then is cooled slowly to be supersaturated to a low degree. This supersaturated solution is irradiated with a femtosecond laser10. A local explosion phenomenon occurs at the focal point of the laser and thereby a crystalline nucleus is generated. A high-quality crystal is obtained when a crystal is grown on the crystalline nucleus over a long period of time. The femtosecond laser to be used herein can be a titanium:sapphire laser having a wavelength of 800 nm, a duration of 120 fs, a frequency of 1 kHz, and an output of 400 mW.
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Adachi Hiroaki
Hosokawa Youichiroh
Masuhara Hiroshi
Mori Yusuke
Sasaki Takatomo
Hamre, Schumann, Muller & Larson, P.C.
Kunemund Robert
Osaka Industrial Promotion Organization
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