Abstract: Provided is a block polymer (X) containing, as structural units, a polyolefin structure derived from a polyolefin (A) below and a polyolefin structure derived from a polyolefin (B) below. The polyolefin (A) contains a C3-C8 ?-olefin as a structural monomer with ?-olefin portions having an isotacticity of 70 to 100%, has a number average molecular weight of 1000 to 200000, and has a carbon-carbon double bond number of 0.01 to 8.0 per 1000 carbon atoms. The polyolefin (B) contains a C3-C8 ?-olefin as a structural monomer with ?-olefin portions having an isotacticity of 1 to 65%, and has a number average molecular weight of 1000 to 200000.

Abstract: An imaging device includes a plurality of imaging units, a control unit configured to control a zoom magnification of each of the imaging units, and an acquisition unit configured to acquire the zoom magnification of each of the imaging units. When the zoom magnification of one imaging unit among the plurality of imaging units is changed, the control unit changes the zoom magnification by interlocking the imaging unit whose zoom magnification is changed with at least one imaging unit other than the imaging unit whose zoom magnification is changed, and changes the two of the imaging units to have the same zoom magnification.

Abstract: An imaging device includes a plurality of imaging units, a control unit configured to control a zoom magnification of each of the imaging units, and an acquisition unit configured to acquire the zoom magnification of each of the imaging units. When the zoom magnification of one imaging unit among the plurality of imaging units is changed, the control unit changes the zoom magnification by interlocking the imaging unit whose zoom magnification is changed with at least one imaging unit other than the imaging unit whose zoom magnification is changed, and changes the two of the imaging units to have the same zoom magnification.

Abstract: An imaging device includes a plurality of imaging units, a control unit configured to control a zoom magnification of each of the imaging units, and an acquisition unit configured to acquire the zoom magnification of each of the imaging units. When the zoom magnification of one imaging unit among the plurality of imaging units is changed, the control unit changes the zoom magnification by interlocking the imaging unit whose zoom magnification is changed with at least one imaging unit other than the imaging unit whose zoom magnification is changed, and changes the two of the imaging units to have the same zoom magnification.

Abstract: A surveillance camera outputs data if audio data of sound collected by a sound collector contains a specified sound component. The surveillance camera terminates outputting of the data when the sound volume of the audio data of the output data reaches or falls below a predetermined sound volume.

Abstract: Provided is a photosensitive composition which can be cured with low energy consumption, even when a substance (such as a colorant) that attenuates or shades an illumination light is contained in a high concentration or even when the photosensitive composition is in the form of a thick film. Specifically provided is a photosensitive composition which comprises the following four components: (1) a radical initiator (A); (2) an acid generator (B) or a base generator (C); (3) a polymerizable substance (D); and (4) a colorant (E), a metal oxide powder (F), or a metal powder (G).

Abstract: The photosensitive composition of the present invention includes: (1) a radical initiator (A); (2) an acid generator (B) and/or a base generator (C); and (3) a polymerizable substance (D), wherein at least one of the radical initiator (A), the acid generator (B) and the base generator (C) are to generate an active species (H) on exposure to active rays, the active species (H) reacting with the radical initiator (A), the acid generator (B) or the base generator (C) to generate another active species (I), the active species (I) initiating polymerization of the polymerizable substance (D), the active species (H) or (I) is an acid or a base, and the photosensitive composition contains substantially no colorants, metal oxide powder, or metallic powder.

Abstract: Provided is a photosensitive composition which can be cured with low energy consumption, even when a substance (such as a colorant) that attenuates or shades an illumination light is contained in a high concentration or even when the photosensitive composition is in the form of a thick film. Specifically provided is a photosensitive composition which comprises the following four components: (1) a radical initiator (A); (2) an acid generator (B) or a base generator (C); (3) a polymerizable substance (D); and (4) a colorant (E), a metal oxide powder (F), or a metal powder (G).

Abstract: A disc cartridge mounted for movement on a main cartridge body unit housing a magnetic disc, in which the disc cartridge has a shutter member of a U-shaped cross-section for opening/closing a recording/reproducing aperture provided in the main cartridge body unit. The shutter member is provided with first and second guide pieces engaging in the movement guide groove provided in the main cartridge body unit. On a lateral side of the main cartridge body unit 4, there are formed first and second inclined guide portions for guiding in the movement guide groove the first and second pieces provided in the shutter member. One of the first and second guide pieces is of a height larger than the other guide piece so that, when the shutter member is mounted on the main cartridge body unit, the guide pieces are prevented from being abutted against the lateral side of the main cartridge body unit to suppress generation of chips from the main cartridge body unit.

Abstract: A cartridge holder is shown which comprises a back portion which has at an inner surface a plurality of cartridge gripping parts by which one sides of cartridges are gripped, a pair of lid portions which are pivotally connected to opposed sides of the back portion through respective major hinge portions; catching and caught portions which are provided at free ends of the lid portions and lock the lid portions when the lid portions are pivoted toward their closed position; and a plurality of extra hinge portions which are defined by the back portion. By roundly flexing the back portion at the major hinge portions, the cartridge gripping parts, that is, the cartridges gripped by these cartridge gripping parts are opened like a fan. Thus, upper ends of the cartridges are separated thereby facilitating handling of the upper ends of the cartridges by the fingers of a user.

Abstract: A disk cassette including a cassette housing having upper and lower shells in which a freely rotatable disc is accommodated. A shutter is slidably secured in parallel relation to the side surfaces of the cassette housing and opens/closes a head insertion hole formed in the cassette housing. The disk cassette further includes a shutter spring assembly which has one end thereof hooked to the cassette housing and the other end thereof hooked to the shutter and thereby urges the shutter so as to close the head insertion hole. An insertion groove is provided in the cassette housing for inserting the shutter spring assembly thereinto and be covered by the shutter when the shutter closes the head insertion hole.

Abstract: An attachment structure for a tape body which supports, on reel hubs, a tape body such as a leader tape, etc. to which a magnetic tape is connected. This attachment structure comprises a tape reel provided with a reel hub which takes cylindrical shape provided at the central portion thereof and a clamp member attached to the reel hub, and a tape body connected to the reel hub in the state where the end portion is supported by the clamp member and wound on the outer circumferential surface of the reel hub. The tape body supported by the reel hub is such that the base end portion side serving as root portion of the drawing side from the reel hub is deformed in the winding direction onto the reel hub following the outer circumferential surface of the reel hub. Deformation of the tape body is carried out by thermal deformation or pressure deformation, or thermal deformation and pressure deformation.

Abstract: A method of attachment for a tape body which supports, on reel hubs, a tape body such as a leader tape, etc. to which a magnetic tape is connected. This attachment structure comprises a tape reel provided with a reel hub which takes cylindrical shape provided at the central portion thereof and a clamp member attached to the reel hub, and a tape body connected to the reel hub in the state where the end portion is supported by the clamp member and wound on the outer circumferential surface of the reel hub. The tape body supported by the reel hub is such that the base end portion side serving as root portion of the drawing side from the reel hub is deformed in the winding direction onto the reel hub following the outer circumferential surface of the reel hub. Deformation of the tape body is carried out by thermal deformation or pressure deformation, or thermal deformation and pressure deformation.

Abstract: A method for manufacturing a tape cartridge includes the steps of forming reel shafts, roller shafts, and tape guides, and the like on a base plate, mounting tape reels on the reel shafts and belt guide rollers on the roller shafts, and the like, placing a drive belt on the belt guide rollers, winding a magnetic tape on the tape reels, securing a cover to the base plate, and forming a marking hole for positional identification in the magnetic tape wound on the tape reels.

Abstract: An attachment structure for a tape body which supports, on reel hubs, a tape body such as a leader tape, etc. to which a magnetic tape is connected. This attachment structure comprises a tape reel provided with a reel hub which takes cylindrical shape provided at the central portion thereof and a clamp member attached to the reel hub, and a tape body connected to the reel hub in the state where the end portion is supported by the clamp member and wound on the outer circumferential surface of the reel hub. The tape body supported by the reel hub is such that the base end portion side serving as root portion of the drawing side from the reel hub is deformed in the winding direction onto the reel hub following the outer circumferential surface of the reel hub. Deformation of the tape body is carried out by thermal deformation or pressure deformation, or thermal deformation and pressure deformation.

Abstract: A tape cartridge comprising a base plate, a pair of tape reels, a drive roller for allowing magnetic tape to undergo a traveling operation, and a cover member of synthetic resin attached to cover one surface side of the base plate. This tape cartridge comprises a pair of engagement recessed portions respectively provided on both sides of the cover member so that, at the time of loading into a tape drive unit, supporting members provided at the side of the unit are engaged therewith, an erroneous loading limiting portion being provided in either of the engagement recessed portions. A plurality of supporting mechanisms absorb expansion differences or contraction differences resulting from a difference between the coefficient of thermal expansion of the cover member and that of the base plate.

Abstract: A cover of a tape or data cartridge to be used as an external memory for a computer includes a number of temporary fixture pins integral with a main body of the cover. The pins function to temporarily fix the main body to a base plate of the tape cartridge. The pins are arranged to be engageable respectively with engaging sections formed in the base plate. Each pin includes a first engagement portion for causing the main body to be provisionally fixed to the base plate in a state where the main body is in contact with the base plate, and a second engagement portion for causing the main body to be temporarily fixed to the base plate in a state where the main body is separate from the base plate.

Abstract: A cover of a tape or data cartridge to be used as an external memory for a computer includes a number of temporary fixture pins integral with a main body of the cover. The pins function to temporarily fix the main body to a base plate of the tape cartridge. The pins are arranged to be engageable respectively with engaging sections formed in the base plate. Each pin includes a first engagement portion for causing the main body to be provisionally fixed to the base plate in a state where the main body is in contact with the base plate, and a second engagement portion for causing the main body to be temporarily fixed to the base plate in a .state where the main body is separate from the base plate.