Inventor

Koji Yamasaki

Inventor

Tokyo, JP

Overview

27→

Patents

1982–2020

Patent span

Physics

Primary field (CPC G)

Patents· 27 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B01Dprimary

B01DSeparation12%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof12%

G06FElectric digital data processing12%

C21DModifying the physical structure of ferrous metals10%

G08BSignalling systems, e.g. personal calling systems8%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%

H01FMagnets6%

C22CAlloys4%

B01FMixing, e.g. dissolving, emulsifying or dispersing2%

B21BRolling of metal2%

PatentTitleYear

10,863,120Imaging device, imaging module, and imaging method2020 10,150,097Honeycomb adsorbent, method of manufacturing the honeycomb adsorbent and canister2018 9,952,936Storage system and method of controlling storage system2018 9,690,487'Storage apparatus and method for controlling storage apparatus'2017 9,427,890'Kneader/stirrer'2016 9,324,359'System and server for efficient data recording on and reproduction from storage media having multiple surfaces'2016 9,322,368'Canister'2016 9,223,660'Storage device to backup content based on a deduplication system'2015 9,174,195'Adsorbent for canister, and canister'2015 9,128,616'Storage device to backup content based on a deduplication system'2015 9,104,328'Storage apparatus and method for controlling storage apparatus'2015 8,443,786'Fuel vapor storage canister, fuel vapor adsorbent for canister, and method of producing fuel vapor adsorbent'2013 8,360,034'Fuel vapor storage canister, fuel vapor adsorbent for canister, and method of producing fuel vapor adsorbent'2013 8,015,965'Fuel vapor storage canister, fuel vapor adsorbent for canister, and method of producing fuel vapor adsorbent'2011 7,976,644'Method of production of grain-oriented electrical steel sheet with high magnetic flux density'2011 6,995,628'Waveguide twist having quadrate sections'2006 6,101,007'One-visual-point image display apparatus and multi-visual-points image display apparatus'2000 5,840,131'Process for producing grain-oriented electrical steel sheet having excellent glass film and magnetic properties'1998 5,685,920'Annealing separator having excellent reactivity for grain-oriented electrical steel sheet and method of use the same'1997 5,472,521'Production method of grain oriented electrical steel sheet having excellent magnetic characteristics'1995 5,151,680'Speaker driver'1992 5,151,694'Paging receiver capable of preventing unauthorized access to message meant therefor'1992 4,992,114'Process for producing grain-oriented thin electrical steel sheet having high magnetic flux density by one-stage cold-rolling method'1991 4,918,438'Paging receiver having audible and vibrator annunciating means'1990 4,680,553'Intermediate frequency amplifier with signal strength detection circuit'1987 4,625,212'Double loop antenna for use in connection to a miniature radio receiver'1986 4,352,091'Radio pager having optional annunciating means'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–2020Based in Tokyo, JP· patent location history

1986–1992Patents assigned to NEC CORP (5)· patent assignee history

1991–2011Patents assigned to NIPPON STEEL CORP (5)· patent assignee history

1991–1997Based in Kitakyushu, JP· patent location history

2011–2018Patents assigned to MAHLE FILTER SYSTEMS JP CORP (6)· patent assignee history

2011–2013Based in Tsurugashima, JP· patent location history

2013–2016Patents assigned to YAMASAKI KOJI (5)· patent assignee history

2015–2020Patents assigned to HITACHI LTD (6)· patent assignee history

2015–2017Based in Yokohama, JP· patent location history

2015–2018Based in Saitama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	6	2015–2020
MAHLE FILTER SYSTEMS JP CORP	6	2011–2018
NEC CORP	5	1986–1992
NIPPON STEEL CORP	5	1991–2011
YAMASAKI KOJIself	5	2013–2016

Locations

Location	Patents	Span
Tokyo, JP	10	1982–2020
Yokohama, JP	4	2015–2017
Saitama, JP	3	2015–2018
Tsurugashima, JP	3	2011–2013
Kitakyushu, JP	3	1991–1997