1
Masahiko Ishida, Ryooichi Haga, Youji Odawara: Process and system for anaerobic treatment of biochemical waste. Hitachi, Craig & Antonelli, January 10, 1978: US04067801 (40 worldwide citation)

In a system for treatment of biochemical waste such as activated sludges, the waste is subjected to anaerobic stabilization processes, which include two phases of an acid fermentation and a methane fermentation effected in separate reactors. The waste after the acid fermentation is then separated in ...


2
Masahiko Ishida, Ryooichi Haga, Youji Odawara: Method for treatment of biochemical waste. Hitachi, Thomas E Beall Jr, October 27, 1981: US04297216 (34 worldwide citation)

Method for treatment of biochemical waste which comprises adding acid to the biochemical waste to adjust pH (power of hydrogen ion) thereof, heating the adjusted biochemical waste, adding alkali thereto to neutralize the waste, and treating with anaerobic digestion.


3
Masahiko Ishida, Ryooichi Haga, Youji Odawara: Process for tertiary treatment of waste waters from anaerobic digestion treatment process. Hitachi, Thomas E Beall Jr, January 30, 1979: US04137158 (23 worldwide citation)

A process for the tertiary treatment of biochemical waste waters comprising the following 4 main steps; (1) adding milk of lime to waste water from the anaerobic digestion treatment process to render the waste water alkaline and recovering NH.sub.3 by reduced pressure distillation, (2) contacting re ...


4
Masahiko Ishida, Ryooichi Haga, Yoji Odawara: Anaerobic digestion process. The Agency of Industrial Science and Technology, Birch Stewart Kolasch & Birch, April 10, 1984: US04442006 (13 worldwide citation)

First, the organic waste slurry of sewage sludge and/or kitchen garbage is stored in a stable condition after effecting partially thereto a liquefaction treatment in advance by adding liquefying bacteria, and next this slurry is effectively digested anaerobically by way of a liquefaction/gasificatio ...


5
Ryooichi Haga, Masahiko Ishida, Masako Katsurayama: Process for liquefying starch. Hitachi, Antonelli Terry & Wands, March 29, 1988: US04734365 (3 worldwide citation)

This invention relates to a process for liquefying starch. More particularly it relates to an appropriate process for liquefying starch by using a thermostable .alpha.-amylase which has an optimum working pH range in an acidic region and a low calcium requirement.


6
Masahiko Ishida, Ryooichi Haga, Masako Katsurayama: Thermostable .alpha.-amylase-producing, thermophilic anaerobic bacteria, thermostable .alpha.-amylase and process for producing the same. Hitachi, Hitachi Plant Engineering & Construction, Antonelli Terry & Wands, October 18, 1988: US04778760 (3 worldwide citation)

The bacterium producing thermostable .alpha.-amylases of this invention is an anaerobic bacterium belonging to Clostridium. The thermostable .alpha.-amylases of this invention is novel .alpha.-amylases which are excellent in thermostability and acid resistance and have a slight calcium requirement. ...


7
Masahiko Ishida, Ryooichi Haga, Yoji Odawara, Sankichi Takahashi, Katsuya Ebara: Process for recovering subterranean stem starch and protein. Hitachi, Antonelli Terry & Wands, August 29, 1989: US04861383 (1 worldwide citation)

This invention provides a process for easily recovering nearly white starch and protein having a high commercial value by depressing darkening of crushed slurry and juice in producing starch and protein of a subterranean stem.



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