Assignee
ASAHI CHEMICAL MICRO SYST
JP·45 granted patents·1 pending application·657 citations·filing 1989–2008
Top patents by PatentIndex Score
46 records- 0192US7332944B2Frequency-controllable oscillatorASAHI CHEMICAL MICRO SYST·Filed 2005·Granted Feb 19, 2008·23 cites·6 claims
- 0290US5966005ALow voltage self cascode current mirrorASAHI CHEMICAL MICRO SYST·Filed 1997·Granted Oct 12, 1999·75 cites·16 claims
- 0389US5990819AD/A converter and delta-sigma D/A converterASAHI CHEMICAL MICRO SYST·Filed 1997·Granted Nov 23, 1999·73 cites·26 claims
- 0484US7330069B2Digital switching amplifierASAHI CHEMICAL MICRO SYST·Filed 2006·Granted Feb 12, 2008·27 cites·12 claims
- 0583US6603364B2Temperature-compensated crystal oscillator and method of temperature compensationASAHI CHEMICAL MICRO SYST·Filed 2001·Granted Aug 5, 2003·22 cites·7 claims
- 0679US7262662B2Operational amplifierASAHI CHEMICAL MICRO SYST·Filed 2005·Granted Aug 28, 2007·11 cites·12 claims
- 0779US6653967B2Fully differential sampling circuitASAHI CHEMICAL MICRO SYST·Filed 2002·Granted Nov 25, 2003·34 cites·7 claims
- 0877US5835390AMerged multi-stage comb filter with reduced operational requirementsASAHI CHEMICAL MICRO SYST·Filed 1995·Granted Nov 10, 1998·31 cites·6 claims
- 0976US6958631B2High-speed current switch circuitASAHI CHEMICAL MICRO SYST·Filed 2001·Granted Oct 25, 2005·17 cites·13 claims
- 1075US7560909B2Power converter using extrapolative conductance mode controlASAHI CHEMICAL MICRO SYST·Filed 2005·Granted Jul 14, 2009·12 cites·63 claims
- 1173US5150324AAnalog arithmetic circuit that can perform multiplication division expansion and compression by using delta sigma modulatorASAHI CHEMICAL MICRO SYST·Filed 1989·Granted Sep 22, 1992·29 cites·11 claims
- 1267US6747425B2System for sharing power and signal pins on a motor controllerASAHI CHEMICAL MICRO SYST·Filed 2002·Granted Jun 8, 2004·19 cites·22 claims
- 1366US7355461B2Waveform generating circuit and spread spectrum clock generatorASAHI CHEMICAL MICRO SYST·Filed 2005·Granted Apr 8, 2008·6 cites·10 claims
- 1465US5397729AMethod for fabrication of semiconductor device having polycrystalline silicon and metal silicidesASAHI CHEMICAL MICRO SYST·Filed 1993·Granted Mar 14, 1995·40 cites·9 claims
- 1564US6996449B2Semiconductor manufacturing apparatus control systemASAHI CHEMICAL MICRO SYST·Filed 2002·Granted Feb 7, 2006·12 cites·3 claims
- 1662US6693574B2D/A converter and delta-sigma D/A converterASAHI CHEMICAL MICRO SYST·Filed 2003·Granted Feb 17, 2004·12 cites·8 claims
- 1762US6531067B1Method for forming contact holeASAHI CHEMICAL MICRO SYST·Filed 1999·Granted Mar 11, 2003·30 cites·3 claims
- 1860US7164372B2Serial transmission system, its transmission-side circuit, and its reception-side circuitASAHI CHEMICAL MICRO SYST·Filed 2005·Granted Jan 16, 2007·3 cites·8 claims
- 1960US7154351B2Approximate n-th order function generating device and temperature compensation crystal oscillation circuitASAHI CHEMICAL MICRO SYST·Filed 2003·Granted Dec 26, 2006·10 cites·29 claims
- 2057US6316339B1Semiconductor device and production method thereofASAHI CHEMICAL MICRO SYST·Filed 2000·Granted Nov 13, 2001·9 cites·15 claims
- 2156US7187243B2Delay circuitASAHI CHEMICAL MICRO SYST·Filed 2005·Granted Mar 6, 2007·4 cites·30 claims
- 2256US7053694B2Band-gap circuit with high power supply rejection ratioASAHI CHEMICAL MICRO SYST·Filed 2004·Granted May 30, 2006·17 cites·3 claims
- 2356US6931237B2Communication deviceASAHI CHEMICAL MICRO SYST·Filed 2002·Granted Aug 16, 2005·6 cites·7 claims
- 2455US6734746B1Mute circuitASAHI CHEMICAL MICRO SYST·Filed 2003·Granted May 11, 2004·13 cites·6 claims
- 2553US7372119B2Cross-shaped Hall device having extensions with slitsASAHI CHEMICAL MICRO SYST·Filed 2002·Granted May 13, 2008·9 cites·6 claims
- 2653US7231139B2Digital noise reduction for motorsASAHI CHEMICAL MICRO SYST·Filed 2005·Granted Jun 12, 2007·2 cites·20 claims
- 2753US6584380B1Approximate third-order function generator, temperature compensation quartz oscillation circuit made by using the same, and temperature compensation methodASAHI CHEMICAL MICRO SYST·Filed 1998·Granted Jun 24, 2003·18 cites·8 claims
- 2853US6472259B1Method of manufacturing semiconductor deviceASAHI CHEMICAL MICRO SYST·Filed 1999·Granted Oct 29, 2002·17 cites·7 claims
- 2951US7786768B2Waveform generating circuit and spread spectrum clock generatorASAHI CHEMICAL MICRO SYST·Filed 2008·Granted Aug 31, 2010·1 cites·7 claims
- 3051US7705921B2Digital BTSC multi-channel TV sound decoder circuit, and decoder comprising sameASAHI CHEMICAL MICRO SYST·Filed 2006·Granted Apr 27, 2010·0 cites·14 claims
- 3151US7161435B2Feedback control circuitASAHI CHEMICAL MICRO SYST·Filed 2005·Granted Jan 9, 2007·4 cites·3 claims
- 3251US6069388ASemiconductor device and production method thereofASAHI CHEMICAL MICRO SYST·Filed 1997·Granted May 30, 2000·14 cites·9 claims
- 3350US7190205B2Variable resistance circuitASAHI CHEMICAL MICRO SYST·Filed 2005·Granted Mar 13, 2007·1 cites·5 claims
- 3449US7323938B2Amplifier circuit and light receiving apparatusASAHI CHEMICAL MICRO SYST·Filed 2005·Granted Jan 29, 2008·2 cites·12 claims
- 3549US7233322B2Display panel drive circuitASAHI CHEMICAL MICRO SYST·Filed 2002·Granted Jun 19, 2007·6 cites·13 claims
- 3641US5930216AClock combining circuitASAHI CHEMICAL MICRO SYST·Filed 1997·Granted Jul 27, 1999·5 cites·31 claims
- 3739US6387741B1Manufacturing a semiconductor device with isolated circuit-element formation layers of different thicknessesASAHI CHEMICAL MICRO SYST·Filed 1999·Granted May 14, 2002·14 cites·12 claims
- 3838US7071766B2Constant voltage generating circuitASAHI CHEMICAL MICRO SYST·Filed 2003·Granted Jul 4, 2006·2 cites·7 claims
- 3938US5841750AInformation playback apparatusASAHI CHEMICAL MICRO SYST·Filed 1997·Granted Nov 24, 1998·4 cites·35 claims
- 4037US7203143B2Slew rate limiting circuit and optical disc apparatusASAHI CHEMICAL MICRO SYST·Filed 2003·Granted Apr 10, 2007·0 cites·19 claims
- 4136US7372881B2Semiconductor laser wavelength control deviceASAHI CHEMICAL MICRO SYST·Filed 2004·Granted May 13, 2008·0 cites·24 claims
- 4236US6472311B1Method for manufacturing semiconductor deviceASAHI CHEMICAL MICRO SYST·Filed 1999·Granted Oct 29, 2002·7 cites·7 claims
- 4335US7529173B2Optical disc device, circuit for optical disc device, wobble signal reproduction method, and land pre-pit signal reproduction methodASAHI CHEMICAL MICRO SYST·Filed 2004·Granted May 5, 2009·0 cites·14 claims
- 4434US6323079B1Method for manufacturing a semiconductor deviceASAHI CHEMICAL MICRO SYST·Filed 1999·Granted Nov 27, 2001·11 cites·6 claims
- 4532US2003190901A1Direct conversion receiving unitASAHI CHEMICAL MICRO SYST·Filed 2003·Application pending·0 cites
- 4630US6593253B1Method of manufacturing semiconductor deviceASAHI CHEMICAL MICRO SYST·Filed 1999·Granted Jul 15, 2003·5 cites·6 claims
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