Abstract: An image blur correction device 400 includes a pitching movement frame 405, a yawing movement frame 408, and a third group frame 462. The pitching movement frame 405 supports a third lens group G3 included in an optical system for performing image blur correction. The yawing movement frame 408 supports the pitching movement frame 405 to be movable in the pitching direction perpendicularly intersecting a second optical axis A2, within a plane perpendicularly intersecting the second optical axis A2. The third group frame 462 supports the yawing movement frame 408 to be movable in the yawing direction along an arc whose center is a rotational axis A3, within a plane perpendicularly intersecting the second optical axis A2.

Abstract: An image blur correction device 400 includes a pitching movement frame 405, a yawing movement frame 408, and a third group frame 462. The pitching movement frame 405 supports a third lens group G3 included in an optical system for performing image blur correction. The yawing movement frame 408 supports the pitching movement frame 405 to be movable in the pitching direction perpendicularly intersecting a second optical axis A2, within a plane perpendicularly intersecting the second optical axis A2. The third group frame 462 supports the yawing movement frame 408 to be movable in the yawing direction along an arc whose center is a rotational axis A3, within a plane perpendicularly intersecting the second optical axis A2.

Abstract: A carrier for immobilizing lipase is prepared by bonding a silane coupling agent having a carboxylic-ester group to an inorganic carrier. Preferred silane coupling agents are .gamma.-methacryl oxypropyltrimethoxy silane, .gamma.-acetoxypropyltrimethoxy silane or .gamma.-acryloxypropyltrimethoxy silane. The inorganic carrier can be kaolinite, porous glass, bentonite, silica gel, alumina, silica, silica-alumina hydroxy apatite or calcium phosphate gel. Lipase is immobilized by mixing lipase with the inorganic carrier containing the bound silane coupling agent, filtering the resultant mixture and drying the filtered mixture. Functional groups of the lipase are bonded to the carboxylic-ester group of the silane coupling agent.

Abstract: A method of preparing an enzyme immobilizing carrier includes the steps of providing a material consisting of kaolin mineral. The material is subject to acid treatment with a strong acid having a pH of 4 or less, and hydrothermal treatment at a temperature of from about 100.degree. C. to about 250.degree. C. The material is dried, thereby producing a porous powder. The porous powder is baked at a temperature of from about 350.degree. C. to about 1000.degree. C., for thereby producing the carrier.

Abstract: An enzyme immobilizing carrier is formed from a porous powder. The powder uses kaolin mineral as a starting material, which starting material is subjected to acid treatment by a strong acid. The acid treated kaolin mineral is then subjected to a hydrothermal treatment. The acid and hydrothermal treated kaolin mineral is then subjected to a baking treatment.

Abstract: A track roller device is disclosed having a pair of rollers that abut against each other and are fitted in one body by welding, using a single pair of bushes, which is light in weight and adapted for large oil chamber capacity and further requires few parts in the assembly thereof.

Abstract: A track roller device comprising a shaft having a pair of axially spaced inside cylinders rotatably supported thereon, which cylinders have radially projecting annular flanges at the axially outer ends thereof. An intermediate cylinder is mounted on and surrounds the inside cylinders and is fixedly connected thereto. The intermediate cylinder has a radially outwardly projecting annular boss disposed substantially midway between the axial ends thereof. Separate rollers are removably mounted on the right and left ends of the intermediate cylinder and abut the opposite sides of the boss. The radial flanges of the inside cylinders are accommodated within cylindrical recesses formed in the radially outer ends of the rollers, and these flanges abut end walls formed on the rollers, whereby the rollers are thus axially confined between the flanges and the annular boss.