** Ricoh 2A03 / 2A07, used in Nintendo Entertainment System / Famicom.

** Ricoh 500 35mm rangefinder with rapid film advance and fast focusing

** Ricoh Mirai ( similar to Olympus AZ-4 zoom )

** Ricoh Ricoh Singlex ( Nikon F mount, made by Mamiya-same body as Nikkorex F, and Sears SLII )

** Ricoh Ricoh Singlex TLS ( M42 lens mount, same as Sears TLS )

** Ricoh Ricoh Singlex II ( M42 lens mount )

** Ricoh KR-5 ( R-K mount )

** Ricoh KR-5 Super ( R-K mount )

** Ricoh KR-5 Super II ( R-K mount )

** Ricoh KR-10 ( R-K mount )

** Ricoh KR-10 Super ( R-K mount )

** Ricoh KR-30SP ( R-K mount )

** Ricoh GR series ( GR1, GR1s and GR1V )

** Ricoh XR-1 ( R-K mount )

** Ricoh XR-2 ( R-K mount )

** Ricoh XR-500 ( R-K mount )

** Ricoh XR-10M ( R-K mount )

** Ricoh XR-P ( R-K mount )

** Ricoh XR-S ( R-K mount )

** Ricoh XR-X ( R-K mount )

** Ricoh FF-9D

** R8 / R9 DMR Digital Module-R – 10 megapixel digital back for the R8 / R9, making them the first 35mm SLR cameras able to capture to film or digitally.

** Tychonoff's theorem stating that every product of compact topological spaces is compact.

** A uniform space is compact if and only if it is complete and totally bounded.

** Sony launches the first consumer compact disc ( CD ) player ( model CDP-101 ).

** CmptH, the category of all compact Hausdorff spaces

** Conductive polymer materials ( printing inks, pastes and emulsions ) for the production of transparent electrodes used in compact electronic devices ( Orgacon brand ).

** the top of a Sphagnum moss plant with compact clusters of young branches

** Convex body, a compact convex set with non-empty interior

** Blue compact dwarf galaxies ( BCD galaxies ) are small compact galaxies

** Pea galaxy ( Pea galaxies ) are small compact galaxies resembling primordial starbursts.

** Continuous functions are better-behaved than Riemann-integrable functions on compact sets.

** Cygnus X-3, a binary system located within the constellation Cygnus, containing a compact object which is a strange star candidate

** As corollary, every compact 3-manifold has a Heegaard splitting.

** Audio Renaissance, 2004 audio compact disc ( abridged ) ISBN 1-55927-999-0

** Dacia Logan, compact

** Conformance class 1 is always used enforce the so-called internal mapping, which is more compact.

** F3DM ( plug-in hybrid compact sedan )

** Rick Marotta Signature-The original series of compact portable drum kits which comes in either a Cherry Wood lacquer finish and a White Marine Pearl wrap finish.

** First introduced in 2000, the Light Fire Attack Vehicle ( LFAV ), or better known as the Red Rhino, was specially designed to be more compact than a traditional fire engine, allowing it to be more agile and able to be deployed closer to the heart of any fire or rescue incident.

** AVR-2 ( 1974 ) Digital TBC, compact Quad used in studios and remote trucks.

** Project Phalanx, a compact version of the Trident Strike.

** SPARS code, a code on some compact disc recordings