Abstract: Two batteries are made mountable like a cartridge in a housing to achieve the large capacity of a battery pack and to improve the facilitation of operation such as replacement of a battery. The battery pack includes covers 2, 3 having four circumferential lateral surfaces one of which is opened; a lid body 5 opening and closing the opened lateral surface 4 of the housings; and a plurality of batteries 6a, 6b attached into and removed from the inside of the housing. The housing are formed to be divided in two portions one of which is a top cover 2 having the open lateral surface, another one of the two portions being a rear cover 3 mounted with a control substrate mounted thereon. The inside of the top cover is vertically divided in two by a partition plate 8 to form battery-storing portions 9a and 9b which can store the battery cartridges 6a and 6b, respectively.

Abstract: Two batteries are made mountable like a cartridge in a housing to achieve the large capacity of a battery pack and to improve the facilitation of operation such as replacement of a battery. The battery pack includes covers 2, 3 having four circumferential lateral surfaces one of which is opened; a lid body 5 opening and closing the opened lateral surface 4 of the housings; and a plurality of batteries 6a, 6b attached into and removed from the inside of the housing. The housing are formed to be divided in two portions one of which is a top cover 2 having the open lateral surface, another one of the two portions being a rear cover 3 mounted with a control substrate mounted thereon. The inside of the top cover is vertically divided in two by a partition plate 8 to form battery-storing portions 9a and 9b which can store the battery cartridges 6a and 6b, respectively.

Abstract: A sulfonamide derivative represented by the Formula: ##STR1## wherein A, B, X, Y, R, m and n are as defined in the specification, and a salt thereof have thromboxane A.sub.2 antagonism, therefore they are useful, for example, as blood platelet aggregation inhibiting agents.

Abstract: A novel peptide possessing excellent antihypertensive activity is disclosed. The peptide has the formula:Pro-Thr-His-Ile-Lys-Trp-Gly-Asp (I)and can be prepared by purifying a fluid extracted from fish tissues or by combining constituting amino acids by a peptide synthesis method. It exhibits excellent ACE inhibitory activity, low toxicity, and good stability, and is thus an extremely useful and effective antihypertensive substance.

Abstract: A triazole derivative represented by the formula ##STR1## wherein R.sup.1 is a hydrogen atom, a lower alkyl group having 1 to 4 carbon atoms, an acetyl group, a naphthylmethyl group, an anthrylmethyl group or a group of the formula ##STR2## wherein X, Y and Z are the same or different and each a hydrogen atom, a halogen atom, a lower alkyl group having 1 to 4 carbon atoms, a lower alkoxy group having 1 to 4 carbon atoms, a hydroxyl group, a nitro group, a trifluoromethyl group, a cyano group or a benzyloxy group, and R.sup.2 is a hydrogen atom or an acetyl group, and R.sup.3 is a hydrogen atom, an acetyl group or a group of the formula ##STR3## wherein R.sup.1 and R.sup.2 are as defined above, are useful as the inhibitors of lipid peroxidation.

Abstract: A novel squid chitin formed material is disclosed. Squid chitin is prepared by pulverizing squid crust and treating the pulverized chitin with caustic soda and then with hydrochloric acid to remove proteins and ashes. Squid chitin formed material such as sheet or fiber is then prepared by a freeze-defrost treatment. The squid chitin sheet and fiber have better physical properties than conventional crab chitin formed materials in terms of strength and folding endurance.