Asserter profile
HITACHI, LTD.
operating company1 patents now2 ever0 cases filed during tenure5 connections
PTAB exposure
1of this entity’s patents have been challenged at PTAB (1 total proceeding). 1 currently have active proceedings.
Two-hop network
Edges marked ⚖️ overlap with at least one infringement suit filed during the receiving entity’s tenure with the patent. Bold-bordered = this entity. Red = NPE; orange = shell LLC; green = defensive aggregator; blue = operating company.
flowchart LR
Nhitachi["HITACHI, LTD."]
Nhitachi_consumer_electronics["HITACHI CONSUMER ELECTRONICS CO., LTD."]
Nmiyano_masaaki_arai_ikuya_masuda_kozo["MIYANO, MASAAKI; ARAI, IKUYA; MASUDA, K…"]
Nhitachi_maxell["HITACHI MAXELL, LTD."]
Nhitachi_consumer_electronics_japan["HITACHI CONSUMER ELECTRONICS CO., LTD.,…"]
Nfujiwara_shinji_mizuno_kazuhiko_watanabe_satoru_kawamura_nob["FUJIWARA, SHINJI; MIZUNO, KAZUHIKO; WAT…"]
Neriko_nagata_shinji_onodera_satomi_morishita_naoya_oka_masaa["Eriko Nagata, Shinji ONODERA, Satomi Mo…"]
Nmaxell["MAXELL, LTD."]
Nmaxell_japan["MAXELL, LTD., JAPAN"]
Nkamimura_junji_nishizawa_akihito_shiokawa_junji_nonaka_shini["Kamimura, Junji; Nishizawa, Akihito; Sh…"]
Nhitachi_maxell_japan["HITACHI MAXELL, LTD., JAPAN"]
Nhitachi -->|"2012 · Assignment · 7577417"| Nhitachi_consumer_electronics
Nmiyano_masaaki_arai_ikuya_masuda_kozo -->|"2006 · Assignment · 7952645"| Nhitachi
Nhitachi -->|"2014 · Assignment · 7952645"| Nhitachi_maxell
Nhitachi -->|"2013 · Assignment · 8180198"| Nhitachi_consumer_electronics_japan
Nfujiwara_shinji_mizuno_kazuhiko_watanabe_satoru_kawamura_nob -->|"2006 · Assignment of Assignor's Interest · 7587430"| Nhitachi
Nhitachi_consumer_electronics -->|"2014 · Assignment · 7577417"| Nhitachi_maxell
Neriko_nagata_shinji_onodera_satomi_morishita_naoya_oka_masaa -->|"2016 · Assignment · 9900569"| Nhitachi_maxell
Nhitachi_maxell -->|"2017 · Assignment · 9900569"| Nmaxell
Nhitachi_maxell -->|"2018 · Assignment · 11026088"| Nmaxell
Nhitachi_maxell -->|"2017 · Assignment · 7577417"| Nmaxell
Nhitachi_maxell -->|"2018 · Assignment · 7952645"| Nmaxell
Nhitachi_maxell -->|"2017 · Change of Name · 8180198"| Nmaxell_japan
Nkamimura_junji_nishizawa_akihito_shiokawa_junji_nonaka_shini -->|"2009 · Assignment · 8471950"| Nhitachi_consumer_electronics_japan
Nhitachi_consumer_electronics_japan -->|"2014 · Assignment · 8471950"| Nhitachi_maxell_japan
classDef focal fill:#fef3c7,stroke:#92400e,stroke-width:3px,color:#1c1917
classDef npe fill:#fee2e2,stroke:#be123c,stroke-width:2px,color:#1c1917
classDef shell fill:#fed7aa,stroke:#9a3412,stroke-width:2px,color:#1c1917
classDef defensive fill:#dcfce7,stroke:#15803d,stroke-width:2px,color:#1c1917
classDef operating fill:#e0f2fe,stroke:#075985,stroke-width:1px,color:#1c1917
class Nhitachi focal
class Nhitachi_consumer_electronics operating
class Nhitachi_maxell operating
class Nhitachi_consumer_electronics_japan operating
class Nmaxell operating
class Nmaxell_japan operating
class Nhitachi_maxell_japan operating
Patents currently held (1)
- US 75874302006-04-18 → present
Patents previously held (1)
Connected entities (5)
- HITACHI CONSUMER ELECTRONICS CO., LTD.operating company1 patent
- MIYANO, MASAAKI; ARAI, IKUYA; MASUDA, KOZOindividual1 patent
- HITACHI MAXELL, LTD.operating company1 patent
- HITACHI CONSUMER ELECTRONICS CO., LTD., JAPANoperating company1 patent
- FUJIWARA, SHINJI; MIZUNO, KAZUHIKO; WATANABE, SATORU; KAWAMURA, NOBUO; SUZUKI, YOSHIOindividual1 patent
Correspondent attorneys (1)
Attorneys / firms recorded with USPTO when this entity received a patent. Recurrence is the signal — many firms do both NPE and operating-company patent work, so a single appearance doesn’t mean much.
- (no name)· ANTONELLI, TERRY, STOUT & KRAUS1 appearance