Inventor
Kazuo Tachiwana
Inventor
Tokyo, JP
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C03Cprimary
C03CChemical composition of glasses, glazes or vitreous enamels39%
G11BInformation storage based on relative movement between record carrier and transducer16%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests16%
Y10TTechnical subjects covered by former us classification13%
G02BOptical elements, systems or apparatus8%
B24BMachines, devices, or processes for grinding or polishing3%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for3%
C03BManufacture, shaping, or supplementary processes3%
PatentTitleYear
9,718,723'Glass article'20179,663,402'Method for manufacturing optical element'20179,236,077'Glass for use as substrate for information recording medium, substrate for information recording medium and information recording medium, and their production methods'20168,785,011'Glass for use as substrate for information recording medium, substrate for information recording medium and information recording medium, and their production methods'20148,656,734'Material for information recording medium substrate, information recording medium substrate, information recording medium, and method for manufacturing them'20148,479,539'Optical glass, glass material for press molding, optical element, and method of manufacturing same'20138,357,459'Glass for use in substrate for information recording medium, substrate for information recording medium and information recording medium, and their manufacturing method'20138,077,406'On-vehicle camera lens glass material and on-vehicle camera lens'20118,076,014'Glass for use in substrate for information recording medium, substrate for information recording medium and information recording medium, and their manufacturing method'20117,501,369'Optical glass and process for the production of optical products'20097,015,164'Optical glass, glass material for press molding, optical element, and method of manufacturing same'20066,156,684'Light polarization control element using stress-optical coefficient glass and method of producing the stress-optical coefficient glass'20005,972,460'Information recording medium'19995,668,066'Near infrared absorption filter glass'19974,996,173'Optical glass'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–2017Patents assigned to HOYA CORP (15)· patent assignee history
1991Based in Akishima, JP· patent location history
1997–2017Based in Tokyo, JP· patent location history
2000–2013Based in Hamura, JP· patent location history
2011–2014Patents assigned to TACHIWANA KAZUO (6)· patent assignee history
2011–2014Patents assigned to HACHITANI YOICHI (5)· patent assignee history
2011–2014Patents assigned to ZOU XUELU (4)· patent assignee history
2011–2014Patents assigned to IKENISHI MIKIO (3)· patent assignee history
2011–2014Based in Shinjuku-ku, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOYA CORP | 15 | 1991–2017 |
| TACHIWANA KAZUOself | 6 | 2011–2014 |
| HACHITANI YOICHI | 5 | 2011–2014 |
| ZOU XUELU | 4 | 2011–2014 |
| IKENISHI MIKIO | 3 | 2011–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 8 | 1997–2017 |
| Shinjuku-ku, JP | 3 | 2011–2014 |
| Hamura, JP | 3 | 2000–2013 |
| Akishima, JP | 1 | 1991 |