Inventor · disambiguated record
Tatsuo Yamaguchi
Also filed as: YAMAGUCHI TATSUO
72 granted patents·28 pending applications·740 citations·filing 1974–2025
99Inventor score
Files withTOPCON CORP35TOSHIBA KK17ASAHI CHEMICAL IND8NIPPON PETROCHEMICALS CO LTD7YAMAGUCHI TATSUO5
Top patents by PatentIndex Score
100 records- 0196US8461373B2Catalyst for producing carboxylic acid esters, process for producing same and process for producing carboxylic acid estersSUZUKI KEN·Filed 2008·Granted Jun 11, 2013·37 cites·18 claims
- 0292US9480973B2Silica-based material and process for producing the same, noble metal supported material and process for producing carboxylic acids by using the same as catalystASAHI CHEMICAL IND·Filed 2015·Granted Nov 1, 2016·7 cites·7 claims
- 0392US6228800B1Noble metal supportASAHI CHEMICAL IND·Filed 1997·Granted May 8, 2001·112 cites·11 claims
- 0492US4518796AMethod for preparing carboxylic estersASAHI CHEMICAL IND·Filed 1980·Granted May 21, 1985·59 cites·11 claims
- 0590US9364817B2Oxide catalyst and method for producing the same, and methods for producing unsaturated aldehyde, diolefin, and unsaturated nitrileASAHI KASEI CHEMICALS CORP·Filed 2013·Granted Jun 14, 2016·5 cites·13 claims
- 0690US8450235B2Supported composite particle material, production process of same and process for producing compounds using supported composite particle material as catalyst for chemical synthesisSUZUKI KEN·Filed 2008·Granted May 28, 2013·22 cites·15 claims
- 0787US9120085B2Silica-based material and process for producing the same, noble metal supported material and process for producing carboxylic acids by using the same as catalystSUZUKI KEN·Filed 2010·Granted Sep 1, 2015·6 cites·5 claims
- 0887US4258217AProcess for producing methacroleinASAHI CHEMICAL IND·Filed 1979·Granted Mar 24, 1981·20 cites·8 claims
- 0986US6040472ACatalyst for use in producing carboxylic estersASAHI CHEMICAL IND·Filed 1996·Granted Mar 21, 2000·67 cites·30 claims
- 1085US12266099B2Ophthalmological information processing apparatus, ophthalmological apparatus, ophthalmological information processing method, and recording mediumTOPCON CORP·Filed 2022·Granted Apr 1, 2025·1 cites·21 claims
- 1185US8614349B2Oxidation catalyst and oxidation methodYOKOTA KOSHIRO·Filed 2005·Granted Dec 24, 2013·13 cites·6 claims
- 1284US12220171B2Ophthalmologic device and ophthalmologic systemTOPCON CORP·Filed 2022·Granted Feb 11, 2025·1 cites·8 claims
- 1383US5191116AProcess for the preparation of methacrylic acid and methacroleinASAHI CHEMICAL IND·Filed 1989·Granted Mar 2, 1993·40 cites·22 claims
- 1479US7281797B2Optical-characteristic measurement apparatus and fundus-image observation apparatusTOPCON CORP·Filed 2005·Granted Oct 16, 2007·22 cites·20 claims
- 1579US6492475B1Ethylene/α-olefin copolymerJAPAN POLYOLEFINS CO LTD·Filed 1999·Granted Dec 10, 2002·49 cites·37 claims
- 1678US9346036B2Oxide catalystYOSHIDA JUN·Filed 2012·Granted May 24, 2016·4 cites·4 claims
- 1778US7530692B2Ophthalmologic photographing apparatusTOPCON CORP·Filed 2007·Granted May 12, 2009·17 cites·20 claims
- 1878US2025357715A1Gas laser device and electronic device manufacturing methodGIGAPHOTON INC·Filed 2025·Application pending·0 cites
- 1975US10793697B2Thermoplastic elastomer composition and method for producing the sameENEOS CORP·Filed 2016·Granted Oct 6, 2020·1 cites·15 claims
- 2075US7635186B2Ophthalmologic measuring apparatusTOPCON CORP·Filed 2007·Granted Dec 22, 2009·15 cites·8 claims
- 2175US6107515AProcess for preparing methacrylic or acrylic estersASAHI CHEMICAL IND·Filed 1997·Granted Aug 22, 2000·42 cites·4 claims
- 2274US2025268468A1Ophthalmic apparatus, method of controlling the same, and recording mediumTOPCON CORP·Filed 2025·Application pending·0 cites
- 2373US2024350003A1Ophthalmic imaging apparatus, controlling method of the same, and recording mediumTOPCON CORP·Filed 2024·Application pending·0 cites
- 2472US12167892B2Ophthalmologic information processing apparatus, ophthalmologic apparatus, ophthalmologic information processing method, and recording mediumTOPCON CORP·Filed 2024·Granted Dec 17, 2024·0 cites·20 claims
- 2572US9145342B2Processes for production of isobutene and tertiary butanolASAHI KASEI CHEMICALS CORP·Filed 2013·Granted Sep 29, 2015·1 cites·3 claims
- 2672US7537340B2Ophthalmologic imaging apparatusTOPCON CORP·Filed 2007·Granted May 26, 2009·9 cites·7 claims
- 2772US7036933B2Model eye for eye characteristic measuring device and calibration method for the sameTOPCON CORP·Filed 2003·Granted May 2, 2006·12 cites·15 claims
- 2872US6178623B1Composite lightweight copper plated aluminum wireTOTOKU ELECTRIC·Filed 1998·Granted Jan 30, 2001·52 cites·6 claims
- 2971US9805220B2Electronic apparatus and control method thereofTOSHIBA KK·Filed 2015·Granted Oct 31, 2017·2 cites·8 claims
- 3071US2025210926A1Method for manufacturing optical module, method for manufacturing gas laser device, and manufacturing jig for optical moduleGIGAPHOTON INC·Filed 2024·Application pending·0 cites
- 3170US7527379B2Ophthalmologic imaging apparatusTOPCON CORP·Filed 2007·Granted May 5, 2009·8 cites·10 claims
- 3268US11806077B2Ophthalmologic apparatus, and ophthalmologic information processing apparatusTOPCON CORP·Filed 2022·Granted Nov 7, 2023·0 cites·2 claims
- 3367US7270415B2Retina observation apparatus and retina observation methodTOPCON CORP·Filed 2004·Granted Sep 18, 2007·10 cites·26 claims
- 3466US10959615B2Eye-fatigue examining device and eye-fatigue examining methodUNIV OSAKA·Filed 2017·Granted Mar 30, 2021·1 cites·16 claims
- 3564US11980416B2Ophthalmologic information processing apparatus, ophthalmologic apparatus, ophthalmologic information processing method, and recording mediumTOPCON CORP·Filed 2020·Granted May 14, 2024·0 cites·17 claims
- 3664US7850305B2Apparatus and method for measuring spectrum image data of eyegroundTOPCON CORP·Filed 2005·Granted Dec 14, 2010·4 cites·18 claims
- 3764US7500754B2Ophthalmologic imaging apparatusTOPCON CORP·Filed 2007·Granted Mar 10, 2009·3 cites·6 claims
- 3861US12402790B2Ophthalmic apparatus, method of controlling the same, and recording mediumTOPCON CORP·Filed 2020·Granted Sep 2, 2025·0 cites·26 claims
- 3961US12133684B2Ophthalmic imaging apparatus, controlling method of the same, and recording mediumTOPCON CORP·Filed 2021·Granted Nov 5, 2024·0 cites·12 claims
- 4060US8825005B2Usage management system and usage management methodANDO TATSUHIRO·Filed 2011·Granted Sep 2, 2014·2 cites·8 claims
- 4160US7484580B2TractorYANMAR CO LTD·Filed 2003·Granted Feb 3, 2009·9 cites·2 claims
- 4259US9919283B2Processes for production of isobutene and tertiary butanolASAHI KASEI CHEMICALS CORP·Filed 2015·Granted Mar 20, 2018·0 cites·5 claims
- 4359US2020107722A1Ophthalmic deviceTOPCON CORP·Filed 2019·Application pending·0 cites
- 4458US11941800B2Ophthalmologic information processing apparatus, ophthalmologic apparatus, ophthalmologic information processing method, and recording mediumTOPCON CORP·Filed 2020·Granted Mar 26, 2024·0 cites·18 claims
- 4558US11717150B2Ophthalmologic apparatus, and ophthalmologic information processing apparatusTOPCON CORP·Filed 2020·Granted Aug 8, 2023·0 cites·25 claims
- 4658US7354655B2Adhesive resin composition and multi-layer laminated structure using the sameJAPAN POLYOLEFINS CO LTD·Filed 2002·Granted Apr 8, 2008·2 cites·32 claims
- 4758US4889649AMethod for transmitting powerNIPPON PETROCHEMICALS CO LTD·Filed 1987·Granted Dec 26, 1989·11 cites·5 claims
- 4857US11298019B2Ophthalmologic apparatus and method for controlling the sameTOPCON CORP·Filed 2019·Granted Apr 12, 2022·0 cites·16 claims
- 4953US11490802B2Ophthalmologic apparatus and method for controlling the sameTOPCON CORP·Filed 2019·Granted Nov 8, 2022·0 cites·17 claims
- 5053US8096200B2TractorYAMAGUCHI TATSUO·Filed 2005·Granted Jan 17, 2012·2 cites·2 claims
Showing the top 50 of 100 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Tatsuo Yamaguchi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →